/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_spec3_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:22:13,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:22:13,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:22:13,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:22:13,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:22:13,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:22:13,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:22:13,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:22:13,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:22:13,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:22:13,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:22:13,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:22:13,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:22:13,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:22:13,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:22:13,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:22:13,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:22:13,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:22:13,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:22:13,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:22:13,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:22:13,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:22:13,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:22:13,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:22:13,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:22:13,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:22:13,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:22:13,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:22:13,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:22:13,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:22:13,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:22:13,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:22:13,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:22:13,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:22:13,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:22:13,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:22:13,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:22:13,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:22:13,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:22:13,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:22:13,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:22:13,930 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 21:22:13,985 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:22:13,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:22:13,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:22:13,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:22:13,987 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:22:13,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:22:13,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:22:13,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:22:13,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:22:13,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:22:13,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:22:13,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:22:13,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:22:13,989 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:22:13,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:22:13,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:22:13,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:22:13,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:22:13,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:22:13,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:22:13,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:22:13,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:22:13,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:22:13,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:22:13,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:22:13,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:22:13,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:22:13,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:22:13,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:22:13,994 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 21:22:14,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:22:14,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:22:14,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:22:14,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:22:14,528 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:22:14,529 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-24 21:22:14,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f2af5a21/82ae67a57bba45cca26e293cc713cf70/FLAGd7b3a9aa9 [2020-09-24 21:22:15,345 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:22:15,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-24 21:22:15,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f2af5a21/82ae67a57bba45cca26e293cc713cf70/FLAGd7b3a9aa9 [2020-09-24 21:22:15,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f2af5a21/82ae67a57bba45cca26e293cc713cf70 [2020-09-24 21:22:15,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:22:15,562 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:22:15,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:15,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:22:15,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:22:15,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:15" (1/1) ... [2020-09-24 21:22:15,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:15, skipping insertion in model container [2020-09-24 21:22:15,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:15" (1/1) ... [2020-09-24 21:22:15,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:22:15,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:22:16,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:16,193 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:22:16,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:16,336 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:22:16,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16 WrapperNode [2020-09-24 21:22:16,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:16,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:22:16,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:22:16,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:22:16,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (1/1) ... [2020-09-24 21:22:16,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (1/1) ... [2020-09-24 21:22:16,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (1/1) ... [2020-09-24 21:22:16,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (1/1) ... [2020-09-24 21:22:16,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (1/1) ... [2020-09-24 21:22:16,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (1/1) ... [2020-09-24 21:22:16,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (1/1) ... [2020-09-24 21:22:16,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:22:16,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:22:16,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:22:16,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:22:16,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (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 21:22:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:22:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:22:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:22:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:22:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:22:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:22:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:22:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:22:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:22:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:22:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:22:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:22:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:22:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:22:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:22:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:22:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:22:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:22:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:22:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:22:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:22:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:22:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:22:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:22:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:22:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:22:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:22:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:22:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:22:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:22:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:22:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:22:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:22:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:22:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:22:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:22:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:22:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:22:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:22:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:22:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:22:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:22:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:22:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:22:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:22:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:22:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:22:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:22:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:22:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:22:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:22:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:22:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:22:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:22:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:22:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:22:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:22:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:22:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:22:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:22:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:22:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:22:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:22:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:22:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:22:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:22:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:22:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:22:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:22:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:22:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:22:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:22:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:22:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:22:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:22:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:22:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:22:17,687 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:22:17,687 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:22:17,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:17 BoogieIcfgContainer [2020-09-24 21:22:17,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:22:17,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:22:17,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:22:17,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:22:17,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:22:15" (1/3) ... [2020-09-24 21:22:17,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf0f8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:17, skipping insertion in model container [2020-09-24 21:22:17,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:16" (2/3) ... [2020-09-24 21:22:17,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf0f8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:17, skipping insertion in model container [2020-09-24 21:22:17,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:17" (3/3) ... [2020-09-24 21:22:17,710 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-09-24 21:22:17,723 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:22:17,739 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:22:17,763 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:22:17,809 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:22:17,809 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:22:17,809 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:22:17,810 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:22:17,811 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:22:17,811 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:22:17,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:22:17,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:22:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states. [2020-09-24 21:22:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 21:22:17,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:17,898 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] [2020-09-24 21:22:17,899 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:17,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:17,913 INFO L82 PathProgramCache]: Analyzing trace with hash 71377499, now seen corresponding path program 1 times [2020-09-24 21:22:17,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:17,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894580196] [2020-09-24 21:22:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:18,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:18,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:20,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 21:22:23,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-24 21:22:23,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:22:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:22:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 21:22:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:22:23,883 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:24,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-24 21:22:24,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:22:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:24,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:22:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:24,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:24,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:24,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:24,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:24,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:24,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:24,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:22:24,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:24,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:24,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:24,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:22:24,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:24,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:24,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:24,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:24,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:22:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:24,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:24,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:22:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:24,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:24,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 21:22:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:24,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:24,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:22:24,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 21:22:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:24,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:24,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:24,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:24,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:24,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:24,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:24,521 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 21:22:24,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894580196] [2020-09-24 21:22:24,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:24,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:22:24,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598775153] [2020-09-24 21:22:24,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:22:24,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:24,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:22:24,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:22:24,570 INFO L87 Difference]: Start difference. First operand 339 states. Second operand 8 states. [2020-09-24 21:22:25,331 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:27,296 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:27,722 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:28,166 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:28,594 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:28,950 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:29,313 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:29,645 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:31,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:31,137 INFO L93 Difference]: Finished difference Result 717 states and 878 transitions. [2020-09-24 21:22:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:22:31,141 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 21:22:31,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:31,165 INFO L225 Difference]: With dead ends: 717 [2020-09-24 21:22:31,165 INFO L226 Difference]: Without dead ends: 495 [2020-09-24 21:22:31,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:22:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-24 21:22:31,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 446. [2020-09-24 21:22:31,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-24 21:22:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 504 transitions. [2020-09-24 21:22:31,334 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 504 transitions. Word has length 153 [2020-09-24 21:22:31,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:31,335 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 504 transitions. [2020-09-24 21:22:31,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:22:31,336 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 504 transitions. [2020-09-24 21:22:31,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 21:22:31,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:31,343 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] [2020-09-24 21:22:31,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:22:31,343 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:31,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:31,344 INFO L82 PathProgramCache]: Analyzing trace with hash -2081081344, now seen corresponding path program 1 times [2020-09-24 21:22:31,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:31,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918432856] [2020-09-24 21:22:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:22:36,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 21:22:36,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:22:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:22:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:22:36,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:22:36,785 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:36,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:37,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 21:22:37,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:22:37,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:37,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:37,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:37,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:37,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:37,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:37,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:22:37,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:37,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:37,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:37,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:37,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:37,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 21:22:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:22:37,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:37,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:22:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 21:22:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:37,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:37,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:37,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:22:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:37,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 21:22:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:37,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:37,228 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 21:22:37,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918432856] [2020-09-24 21:22:37,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:37,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:22:37,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021349403] [2020-09-24 21:22:37,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:22:37,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:37,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:22:37,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:22:37,234 INFO L87 Difference]: Start difference. First operand 446 states and 504 transitions. Second operand 5 states. [2020-09-24 21:22:37,721 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:40,137 INFO L93 Difference]: Finished difference Result 999 states and 1242 transitions. [2020-09-24 21:22:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:22:40,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-24 21:22:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:40,148 INFO L225 Difference]: With dead ends: 999 [2020-09-24 21:22:40,149 INFO L226 Difference]: Without dead ends: 663 [2020-09-24 21:22:40,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:22:40,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2020-09-24 21:22:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 605. [2020-09-24 21:22:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-09-24 21:22:40,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 708 transitions. [2020-09-24 21:22:40,244 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 708 transitions. Word has length 159 [2020-09-24 21:22:40,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:40,245 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 708 transitions. [2020-09-24 21:22:40,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:22:40,245 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 708 transitions. [2020-09-24 21:22:40,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 21:22:40,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:40,249 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] [2020-09-24 21:22:40,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:22:40,250 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:40,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:40,250 INFO L82 PathProgramCache]: Analyzing trace with hash 2089366699, now seen corresponding path program 1 times [2020-09-24 21:22:40,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:40,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812538601] [2020-09-24 21:22:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:40,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:40,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:40,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 21:22:40,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:40,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-09-24 21:22:40,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 21:22:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:22:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,008 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:41,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:41,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 21:22:41,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:41,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:41,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:41,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:41,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:22:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:22:41,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:41,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:22:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:22:41,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:41,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:22:41,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 21:22:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 21:22:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 21:22:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,344 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 21:22:41,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812538601] [2020-09-24 21:22:41,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:41,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:22:41,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398898688] [2020-09-24 21:22:41,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:22:41,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:41,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:22:41,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:22:41,347 INFO L87 Difference]: Start difference. First operand 605 states and 708 transitions. Second operand 6 states. [2020-09-24 21:22:41,833 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:44,516 INFO L93 Difference]: Finished difference Result 1765 states and 2217 transitions. [2020-09-24 21:22:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:22:44,516 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-24 21:22:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:44,527 INFO L225 Difference]: With dead ends: 1765 [2020-09-24 21:22:44,527 INFO L226 Difference]: Without dead ends: 1270 [2020-09-24 21:22:44,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:22:44,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2020-09-24 21:22:44,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1065. [2020-09-24 21:22:44,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-09-24 21:22:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1266 transitions. [2020-09-24 21:22:44,694 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1266 transitions. Word has length 172 [2020-09-24 21:22:44,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:44,695 INFO L479 AbstractCegarLoop]: Abstraction has 1065 states and 1266 transitions. [2020-09-24 21:22:44,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:22:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1266 transitions. [2020-09-24 21:22:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 21:22:44,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:44,699 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] [2020-09-24 21:22:44,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:22:44,700 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:44,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:44,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1049977612, now seen corresponding path program 1 times [2020-09-24 21:22:44,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:44,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182640094] [2020-09-24 21:22:44,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:22:44,777 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:22:44,777 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:22:44,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:22:44,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:22:44 BoogieIcfgContainer [2020-09-24 21:22:44,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:22:44,820 INFO L168 Benchmark]: Toolchain (without parser) took 29262.48 ms. Allocated memory was 138.9 MB in the beginning and 595.6 MB in the end (delta: 456.7 MB). Free memory was 101.4 MB in the beginning and 356.8 MB in the end (delta: -255.4 MB). Peak memory consumption was 201.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:44,821 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 21:22:44,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.86 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.6 MB in the beginning and 167.0 MB in the end (delta: -66.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:44,824 INFO L168 Benchmark]: Boogie Preprocessor took 97.73 ms. Allocated memory is still 200.3 MB. Free memory was 167.0 MB in the beginning and 161.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:44,830 INFO L168 Benchmark]: RCFGBuilder took 1259.42 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 161.1 MB in the beginning and 166.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:44,831 INFO L168 Benchmark]: TraceAbstraction took 27120.50 ms. Allocated memory was 232.3 MB in the beginning and 595.6 MB in the end (delta: 363.3 MB). Free memory was 166.6 MB in the beginning and 356.8 MB in the end (delta: -190.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:44,844 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.86 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.6 MB in the beginning and 167.0 MB in the end (delta: -66.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.73 ms. Allocated memory is still 200.3 MB. Free memory was 167.0 MB in the beginning and 161.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1259.42 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 161.1 MB in the beginning and 166.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27120.50 ms. Allocated memory was 232.3 MB in the beginning and 595.6 MB in the end (delta: 363.3 MB). Free memory was 166.6 MB in the beginning and 356.8 MB in the end (delta: -190.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) [L802] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L802] RET waterRise() [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L759] COND FALSE !(\read(pumpRunning)) [L766] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND FALSE !(\read(systemActive)) [L581] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L853] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 862 SDtfs, 1932 SDslu, 1058 SDs, 0 SdLazy, 2446 SolverSat, 706 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 312 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 661 NumberOfCodeBlocks, 661 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 481 ConstructedInterpolants, 0 QuantifiedInterpolants, 192722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...