/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=HIGHLEXORDER --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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:28:07,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:28:07,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:28:07,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:28:07,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:28:07,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:28:07,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:28:07,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:28:07,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:28:07,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:28:07,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:28:07,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:28:07,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:28:07,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:28:07,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:28:07,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:28:07,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:28:07,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:28:07,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:28:07,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:28:07,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:28:07,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:28:07,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:28:07,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:28:07,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:28:07,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:28:07,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:28:07,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:28:07,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:28:07,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:28:07,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:28:07,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:28:07,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:28:07,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:28:07,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:28:07,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:28:07,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:28:07,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:28:07,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:28:07,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:28:07,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:28:07,399 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 22:28:07,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:28:07,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:28:07,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:28:07,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:28:07,446 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:28:07,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:28:07,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:28:07,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:28:07,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:28:07,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:28:07,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:28:07,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:28:07,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:28:07,449 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:28:07,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:28:07,449 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:28:07,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:28:07,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:28:07,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:28:07,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:28:07,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:28:07,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:28:07,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:28:07,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:28:07,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:28:07,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:28:07,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:28:07,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:28:07,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:28:07,452 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:28:07,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:28:07,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:28:07,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:28:07,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:28:07,941 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:28:07,942 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-24 22:28:08,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22def2cd2/96a53a98c80a457db3ed80497803470c/FLAGab8a4f5b2 [2020-09-24 22:28:08,625 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:28:08,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-24 22:28:08,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22def2cd2/96a53a98c80a457db3ed80497803470c/FLAGab8a4f5b2 [2020-09-24 22:28:08,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22def2cd2/96a53a98c80a457db3ed80497803470c [2020-09-24 22:28:08,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:28:08,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:28:08,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:08,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:28:08,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:28:08,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:08,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08, skipping insertion in model container [2020-09-24 22:28:08,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:08,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:28:09,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:28:09,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:09,493 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:28:09,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:09,619 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:28:09,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09 WrapperNode [2020-09-24 22:28:09,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:09,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:28:09,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:28:09,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:28:09,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (1/1) ... [2020-09-24 22:28:09,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (1/1) ... [2020-09-24 22:28:09,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (1/1) ... [2020-09-24 22:28:09,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (1/1) ... [2020-09-24 22:28:09,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (1/1) ... [2020-09-24 22:28:09,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (1/1) ... [2020-09-24 22:28:09,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (1/1) ... [2020-09-24 22:28:09,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:28:09,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:28:09,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:28:09,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:28:09,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (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 22:28:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:28:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:28:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:28:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:28:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:28:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:28:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:28:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:28:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:28:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:28:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:28:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:28:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:28:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:28:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:28:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:28:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:28:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:28:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:28:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:28:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:28:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 22:28:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:28:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:28:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:28:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:28:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:28:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:28:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:28:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:28:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:28:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:28:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:28:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:28:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:28:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:28:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:28:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:28:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:28:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:28:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:28:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:28:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:28:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:28:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:28:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:28:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:28:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:28:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:28:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:28:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:28:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:28:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:28:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:28:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:28:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:28:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:28:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:28:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:28:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:28:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 22:28:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:28:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:28:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:28:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:28:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:28:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:28:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:28:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:28:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:28:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:28:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:28:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:28:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:28:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:28:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:28:11,074 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:28:11,074 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:28:11,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:11 BoogieIcfgContainer [2020-09-24 22:28:11,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:28:11,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:28:11,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:28:11,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:28:11,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:28:08" (1/3) ... [2020-09-24 22:28:11,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7311752c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:11, skipping insertion in model container [2020-09-24 22:28:11,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:09" (2/3) ... [2020-09-24 22:28:11,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7311752c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:11, skipping insertion in model container [2020-09-24 22:28:11,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:11" (3/3) ... [2020-09-24 22:28:11,092 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-09-24 22:28:11,104 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:28:11,116 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:28:11,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:28:11,170 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:28:11,170 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:28:11,170 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:28:11,171 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:28:11,171 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:28:11,171 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:28:11,171 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:28:11,171 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:28:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-24 22:28:11,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:28:11,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:11,219 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 22:28:11,220 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:11,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1381778522, now seen corresponding path program 1 times [2020-09-24 22:28:11,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:11,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358113712] [2020-09-24 22:28:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:11,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:12,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:15,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:28:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4274 [2020-09-24 22:28:15,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:15,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:15,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:28:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:15,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:28:16,387 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:16,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:16,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 22:28:16,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 22:28:16,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:16,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:16,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:16,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:28:16,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:16,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:16,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:28:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:16,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:16,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:28:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:16,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:28:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:28:16,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,756 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 22:28:16,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358113712] [2020-09-24 22:28:16,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:16,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:28:16,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10451286] [2020-09-24 22:28:16,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:28:16,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:16,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:28:16,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:16,794 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-24 22:28:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:18,087 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2020-09-24 22:28:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:28:18,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:28:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:18,112 INFO L225 Difference]: With dead ends: 413 [2020-09-24 22:28:18,112 INFO L226 Difference]: Without dead ends: 263 [2020-09-24 22:28:18,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:18,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-24 22:28:18,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-24 22:28:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 22:28:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2020-09-24 22:28:18,291 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 153 [2020-09-24 22:28:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:18,295 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2020-09-24 22:28:18,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:28:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2020-09-24 22:28:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:28:18,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:18,313 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] [2020-09-24 22:28:18,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:28:18,314 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:18,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:18,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1416646641, now seen corresponding path program 1 times [2020-09-24 22:28:18,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:18,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786189535] [2020-09-24 22:28:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:18,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:18,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:19,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:28:23,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:23,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-24 22:28:23,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:23,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:28:23,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:28:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:23,728 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:23,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:23,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 22:28:23,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:23,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:23,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:28:23,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:23,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:23,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:28:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:28:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:23,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:28:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:23,993 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 22:28:23,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786189535] [2020-09-24 22:28:23,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:23,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:28:23,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191643135] [2020-09-24 22:28:23,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:28:23,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:23,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:28:23,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:28:23,997 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 4 states. [2020-09-24 22:28:24,634 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:28:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:25,389 INFO L93 Difference]: Finished difference Result 330 states and 370 transitions. [2020-09-24 22:28:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:28:25,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:28:25,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:25,400 INFO L225 Difference]: With dead ends: 330 [2020-09-24 22:28:25,400 INFO L226 Difference]: Without dead ends: 246 [2020-09-24 22:28:25,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:28:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-24 22:28:25,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-09-24 22:28:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-24 22:28:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-09-24 22:28:25,467 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 154 [2020-09-24 22:28:25,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:25,469 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-09-24 22:28:25,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:28:25,469 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-09-24 22:28:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 22:28:25,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:25,472 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] [2020-09-24 22:28:25,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:28:25,472 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:25,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:25,473 INFO L82 PathProgramCache]: Analyzing trace with hash 448801326, now seen corresponding path program 1 times [2020-09-24 22:28:25,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:25,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57742832] [2020-09-24 22:28:25,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:25,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 22:28:28,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:28:28,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2913 [2020-09-24 22:28:28,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 22:28:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 22:28:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:28,728 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:28,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:28,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-24 22:28:28,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 22:28:28,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:29,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:29,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:29,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:29,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:29,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:29,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:29,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:29,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:29,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:29,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:29,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:29,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:28:29,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:29,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:29,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:29,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:29,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:29,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:29,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:29,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:28:29,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:29,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:29,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:29,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:29,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:29,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:29,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:28:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:29,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:29,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:29,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:29,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:28:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:29,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:29,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:29,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:29,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 22:28:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:29,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:29,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:29,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:29,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:29,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:29,139 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 22:28:29,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57742832] [2020-09-24 22:28:29,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:29,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:28:29,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816179726] [2020-09-24 22:28:29,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:28:29,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:29,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:28:29,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:28:29,144 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-09-24 22:28:29,676 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:30,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:30,480 INFO L93 Difference]: Finished difference Result 350 states and 395 transitions. [2020-09-24 22:28:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:28:30,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 22:28:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:30,485 INFO L225 Difference]: With dead ends: 350 [2020-09-24 22:28:30,485 INFO L226 Difference]: Without dead ends: 246 [2020-09-24 22:28:30,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:28:30,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-24 22:28:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-09-24 22:28:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-24 22:28:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2020-09-24 22:28:30,521 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 163 [2020-09-24 22:28:30,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:30,522 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2020-09-24 22:28:30,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:28:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2020-09-24 22:28:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 22:28:30,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:30,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:28:30,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:28:30,525 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:30,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:30,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1282068038, now seen corresponding path program 1 times [2020-09-24 22:28:30,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:30,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338029145] [2020-09-24 22:28:30,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:30,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 22:28:32,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-09-24 22:28:32,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:28:32,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:28:32,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-24 22:28:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,715 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:32,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:32,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 22:28:32,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 22:28:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:33,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:33,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:33,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:33,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:33,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:28:33,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:33,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:33,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:33,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:33,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:28:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:28:33,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:33,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:28:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:28:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:33,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:33,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 22:28:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:33,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:33,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 22:28:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:33,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:28:33,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:33,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:28:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:33,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:33,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:33,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:33,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:33,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:33,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:33,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:33,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:33,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:33,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:33,184 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 22:28:33,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338029145] [2020-09-24 22:28:33,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:33,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:28:33,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6319656] [2020-09-24 22:28:33,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:28:33,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:33,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:28:33,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:28:33,187 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand 10 states. [2020-09-24 22:28:33,760 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:35,758 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:36,424 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 22:28:36,799 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:37,124 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:28:37,428 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:37,907 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:38,198 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:28:38,524 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:38,999 INFO L93 Difference]: Finished difference Result 497 states and 596 transitions. [2020-09-24 22:28:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:28:39,000 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-24 22:28:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:39,005 INFO L225 Difference]: With dead ends: 497 [2020-09-24 22:28:39,005 INFO L226 Difference]: Without dead ends: 393 [2020-09-24 22:28:39,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:28:39,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-24 22:28:39,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 313. [2020-09-24 22:28:39,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-09-24 22:28:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 345 transitions. [2020-09-24 22:28:39,071 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 345 transitions. Word has length 171 [2020-09-24 22:28:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:39,072 INFO L479 AbstractCegarLoop]: Abstraction has 313 states and 345 transitions. [2020-09-24 22:28:39,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:28:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 345 transitions. [2020-09-24 22:28:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 22:28:39,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:39,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:28:39,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:28:39,076 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:39,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:39,077 INFO L82 PathProgramCache]: Analyzing trace with hash -426197068, now seen corresponding path program 1 times [2020-09-24 22:28:39,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:39,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368750748] [2020-09-24 22:28:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:28:39,145 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:28:39,145 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:28:39,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:28:39,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:28:39 BoogieIcfgContainer [2020-09-24 22:28:39,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:28:39,199 INFO L168 Benchmark]: Toolchain (without parser) took 30284.94 ms. Allocated memory was 140.0 MB in the beginning and 593.5 MB in the end (delta: 453.5 MB). Free memory was 102.5 MB in the beginning and 552.1 MB in the end (delta: -449.7 MB). Peak memory consumption was 466.0 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:39,200 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:28:39,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.54 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 172.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:39,202 INFO L168 Benchmark]: Boogie Preprocessor took 123.29 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:39,203 INFO L168 Benchmark]: RCFGBuilder took 1336.33 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 168.4 MB in the beginning and 179.5 MB in the end (delta: -11.1 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:39,204 INFO L168 Benchmark]: TraceAbstraction took 28114.21 ms. Allocated memory was 235.9 MB in the beginning and 593.5 MB in the end (delta: 357.6 MB). Free memory was 179.5 MB in the beginning and 552.1 MB in the end (delta: -372.6 MB). Peak memory consumption was 447.0 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:39,208 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.54 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 172.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.29 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1336.33 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 168.4 MB in the beginning and 179.5 MB in the end (delta: -11.1 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28114.21 ms. Allocated memory was 235.9 MB in the beginning and 593.5 MB in the end (delta: 357.6 MB). Free memory was 179.5 MB in the beginning and 552.1 MB in the end (delta: -372.6 MB). Peak memory consumption was 447.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L243] CALL test() [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND TRUE \read(tmp) [L482] CALL waterRise() [L64] COND TRUE waterLevel < 2 [L65] waterLevel = waterLevel + 1 [L482] RET waterRise() [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L513] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L330] FCALL processEnvironment__wrappee__methaneQuery() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification3_spec__1() [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L433] CALL, EXPR isMethaneLevelCritical() [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] RET, EXPR isMethaneLevelCritical() [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L439] CALL, EXPR getWaterLevel() [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] RET, EXPR getWaterLevel() [L439] tmp___0 = getWaterLevel() [L441] COND TRUE tmp___0 == 2 [L443] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L443] RET, EXPR isPumpRunning() [L443] tmp___1 = isPumpRunning() [L445] COND FALSE !(\read(tmp___1)) [L449] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 599 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 899 SDslu, 815 SDs, 0 SdLazy, 1720 SolverSat, 285 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 183 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 262756 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...