/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_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:16:46,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:16:46,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:16:46,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:16:46,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:16:46,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:16:46,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:16:46,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:16:46,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:16:46,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:16:46,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:16:46,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:16:46,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:16:46,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:16:46,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:16:46,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:16:46,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:16:46,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:16:46,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:16:46,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:16:46,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:16:46,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:16:46,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:16:46,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:16:46,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:16:46,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:16:46,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:16:46,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:16:46,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:16:46,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:16:46,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:16:46,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:16:46,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:16:46,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:16:46,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:16:46,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:16:46,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:16:46,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:16:46,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:16:46,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:16:46,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:16:46,457 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 21:16:46,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:16:46,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:16:46,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:16:46,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:16:46,512 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:16:46,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:16:46,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:16:46,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:16:46,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:16:46,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:16:46,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:16:46,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:16:46,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:16:46,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:16:46,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:16:46,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:16:46,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:16:46,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:16:46,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:16:46,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:16:46,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:16:46,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:16:46,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:16:46,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:16:46,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:16:46,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:16:46,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:16:46,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:16:46,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:16:46,519 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 21:16:46,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:16:47,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:16:47,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:16:47,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:16:47,017 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:16:47,018 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 21:16:47,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd3c8caa9/82bae3fe1c9e467285da0b32717a7fed/FLAGba2722603 [2020-09-24 21:16:47,764 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:16:47,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 21:16:47,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd3c8caa9/82bae3fe1c9e467285da0b32717a7fed/FLAGba2722603 [2020-09-24 21:16:48,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd3c8caa9/82bae3fe1c9e467285da0b32717a7fed [2020-09-24 21:16:48,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:16:48,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:16:48,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:16:48,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:16:48,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:16:48,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48, skipping insertion in model container [2020-09-24 21:16:48,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:16:48,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:16:48,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:16:48,608 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:16:48,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:16:48,770 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:16:48,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48 WrapperNode [2020-09-24 21:16:48,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:16:48,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:16:48,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:16:48,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:16:48,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (1/1) ... [2020-09-24 21:16:48,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:16:48,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:16:48,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:16:48,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:16:48,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (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 21:16:48,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:16:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:16:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:16:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:16:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:16:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:16:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:16:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:16:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:16:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:16:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:16:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:16:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:16:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:16:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:16:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:16:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:16:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:16:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:16:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:16:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:16:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:16:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:16:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:16:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:16:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:16:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:16:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:16:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:16:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:16:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:16:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:16:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:16:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:16:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:16:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:16:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:16:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:16:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:16:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:16:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:16:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:16:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:16:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:16:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:16:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:16:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:16:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:16:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:16:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:16:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:16:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:16:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:16:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:16:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:16:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:16:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:16:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:16:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:16:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:16:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:16:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:16:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:16:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:16:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:16:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:16:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:16:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:16:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:16:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:16:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:16:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:16:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:16:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:16:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:16:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:16:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:16:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:16:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:16:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:16:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:16:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:16:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:16:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:16:50,293 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:16:50,294 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:16:50,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:16:50 BoogieIcfgContainer [2020-09-24 21:16:50,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:16:50,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:16:50,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:16:50,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:16:50,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:16:48" (1/3) ... [2020-09-24 21:16:50,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fb502c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:16:50, skipping insertion in model container [2020-09-24 21:16:50,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:48" (2/3) ... [2020-09-24 21:16:50,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fb502c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:16:50, skipping insertion in model container [2020-09-24 21:16:50,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:16:50" (3/3) ... [2020-09-24 21:16:50,312 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-24 21:16:50,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:16:50,335 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:16:50,358 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:16:50,392 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:16:50,392 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:16:50,392 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:16:50,392 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:16:50,393 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:16:50,393 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:16:50,393 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:16:50,393 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:16:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-24 21:16:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:16:50,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:50,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:50,458 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:50,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:50,467 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-24 21:16:50,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:50,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213922948] [2020-09-24 21:16:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:50,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:51,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:52,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:53,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:55,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:55,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:55,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:16:55,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:16:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 21:16:55,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:16:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:16:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 21:16:55,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:16:56,310 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:56,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:56,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:56,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:56,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:56,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:56,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-24 21:16:56,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:56,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:56,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:56,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:16:56,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:56,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:56,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:56,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:56,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:56,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:56,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:56,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:56,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:56,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:56,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:56,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:56,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:56,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:56,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:56,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:56,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:56,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:56,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:56,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:56,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 21:16:56,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:56,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:56,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:56,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:56,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:56,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:56,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:56,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:56,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:56,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:56,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:56,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:56,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:56,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:56,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:56,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:56,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:56,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:56,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:16:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:56,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:56,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:56,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:56,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:56,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:16:56,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:56,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:56,937 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 21:16:56,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213922948] [2020-09-24 21:16:56,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:56,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:16:56,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701870061] [2020-09-24 21:16:56,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:16:56,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:56,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:16:56,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:16:56,970 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 8 states. [2020-09-24 21:16:57,566 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:58,904 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:59,276 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:16:59,629 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:59,986 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:00,286 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:01,120 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:01,417 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:01,783 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:03,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:03,334 INFO L93 Difference]: Finished difference Result 664 states and 833 transitions. [2020-09-24 21:17:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:17:03,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:17:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:03,359 INFO L225 Difference]: With dead ends: 664 [2020-09-24 21:17:03,359 INFO L226 Difference]: Without dead ends: 437 [2020-09-24 21:17:03,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:17:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-09-24 21:17:03,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 393. [2020-09-24 21:17:03,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-24 21:17:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 454 transitions. [2020-09-24 21:17:03,515 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 454 transitions. Word has length 142 [2020-09-24 21:17:03,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:03,516 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 454 transitions. [2020-09-24 21:17:03,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:17:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 454 transitions. [2020-09-24 21:17:03,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 21:17:03,523 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:03,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:03,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:17:03,524 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:03,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:03,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-24 21:17:03,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:03,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469432112] [2020-09-24 21:17:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:03,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:04,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:08,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:08,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 21:17:08,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:08,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 21:17:08,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:17:08,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:17:08,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-24 21:17:08,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:09,001 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:09,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:09,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 21:17:09,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:09,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:17:09,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:09,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:09,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:09,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:09,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:09,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:09,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:17:09,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:09,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:09,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 21:17:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:17:09,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:09,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 21:17:09,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:09,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 21:17:09,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:09,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:17:09,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:09,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 21:17:09,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:09,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:17:09,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:09,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 21:17:09,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:09,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:09,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:09,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:17:09,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:09,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:17:09,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:09,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:09,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:09,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:09,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:09,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:09,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:09,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 21:17:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:09,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:17:09,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:09,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 21:17:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:09,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:09,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:09,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,905 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 21:17:09,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469432112] [2020-09-24 21:17:09,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:09,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:17:09,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876308571] [2020-09-24 21:17:09,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:17:09,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:09,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:17:09,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:17:09,912 INFO L87 Difference]: Start difference. First operand 393 states and 454 transitions. Second operand 9 states. [2020-09-24 21:17:10,444 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:11,289 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:11,635 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:11,988 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:12,352 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:12,663 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:13,212 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:13,540 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:13,931 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:16,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:16,656 INFO L93 Difference]: Finished difference Result 1079 states and 1390 transitions. [2020-09-24 21:17:16,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:17:16,657 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-09-24 21:17:16,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:16,669 INFO L225 Difference]: With dead ends: 1079 [2020-09-24 21:17:16,670 INFO L226 Difference]: Without dead ends: 750 [2020-09-24 21:17:16,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:17:16,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-09-24 21:17:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 635. [2020-09-24 21:17:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-24 21:17:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 741 transitions. [2020-09-24 21:17:16,789 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 741 transitions. Word has length 195 [2020-09-24 21:17:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:16,790 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 741 transitions. [2020-09-24 21:17:16,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:17:16,790 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 741 transitions. [2020-09-24 21:17:16,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 21:17:16,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:16,796 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:16,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:17:16,796 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:16,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:16,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1022587470, now seen corresponding path program 1 times [2020-09-24 21:17:16,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:16,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816728570] [2020-09-24 21:17:16,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:16,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:21,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:21,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-09-24 21:17:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:17:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:17:21,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:17:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:17:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:17:21,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:22,143 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:22,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:22,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 21:17:22,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:17:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:22,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:22,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:17:22,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:22,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:22,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:22,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:22,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:17:22,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:22,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:22,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:22,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:22,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:17:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:17:22,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:22,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:17:22,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:17:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:17:22,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:17:22,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:17:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:17:22,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:17:22,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:22,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:17:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:22,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:22,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 21:17:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:17:22,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 21:17:22,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:17:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:22,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:22,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:17:22,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:17:22,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:17:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:22,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:22,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:17:22,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:17:22,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:17:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:22,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:22,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:17:22,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:17:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:22,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:22,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:22,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:22,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:22,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:22,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:17:22,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:17:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:22,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:22,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:23,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:23,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:23,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:17:23,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:23,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 21:17:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:23,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:23,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:23,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 21:17:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:23,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:23,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:23,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,079 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:17:23,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816728570] [2020-09-24 21:17:23,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:23,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:17:23,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700339586] [2020-09-24 21:17:23,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:17:23,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:23,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:17:23,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:17:23,083 INFO L87 Difference]: Start difference. First operand 635 states and 741 transitions. Second operand 12 states. [2020-09-24 21:17:23,653 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:24,736 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:25,242 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:25,555 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:25,927 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:26,293 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:26,613 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:27,038 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:27,388 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:27,789 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:28,173 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:28,499 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:32,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:32,478 INFO L93 Difference]: Finished difference Result 2165 states and 2878 transitions. [2020-09-24 21:17:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 21:17:32,478 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 225 [2020-09-24 21:17:32,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:32,491 INFO L225 Difference]: With dead ends: 2165 [2020-09-24 21:17:32,492 INFO L226 Difference]: Without dead ends: 1640 [2020-09-24 21:17:32,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 21:17:32,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2020-09-24 21:17:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1165. [2020-09-24 21:17:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1165 states. [2020-09-24 21:17:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1374 transitions. [2020-09-24 21:17:32,682 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1374 transitions. Word has length 225 [2020-09-24 21:17:32,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:32,682 INFO L479 AbstractCegarLoop]: Abstraction has 1165 states and 1374 transitions. [2020-09-24 21:17:32,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:17:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1374 transitions. [2020-09-24 21:17:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 21:17:32,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:32,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:32,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:17:32,688 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:32,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash -956768190, now seen corresponding path program 1 times [2020-09-24 21:17:32,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:32,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180648913] [2020-09-24 21:17:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:32,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:33,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:33,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 21:17:33,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-24 21:17:33,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:17:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-24 21:17:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:17:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:33,901 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:33,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:33,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:34,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 21:17:34,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:34,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:34,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:34,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:34,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:34,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:34,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:34,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:17:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:17:34,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:34,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:17:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:17:34,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 21:17:34,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:17:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:17:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:17:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:17:34,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 21:17:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:17:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:17:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:17:34,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:17:34,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 21:17:34,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:17:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:17:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:17:34,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:34,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:34,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:17:34,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:17:34,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:34,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:34,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:34,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:34,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:34,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:17:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:34,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 21:17:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:34,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:34,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:34,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:34,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 21:17:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:34,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:34,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:34,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:34,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:34,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:17:34,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:34,599 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 21:17:34,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180648913] [2020-09-24 21:17:34,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:34,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:17:34,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117762690] [2020-09-24 21:17:34,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:17:34,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:34,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:17:34,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:17:34,602 INFO L87 Difference]: Start difference. First operand 1165 states and 1374 transitions. Second operand 10 states. [2020-09-24 21:17:36,084 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:36,383 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:36,701 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:37,033 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:37,405 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:17:37,718 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190