/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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:29:38,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:29:38,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:29:38,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:29:38,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:29:38,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:29:38,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:29:38,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:29:38,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:29:38,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:29:38,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:29:38,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:29:38,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:29:38,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:29:38,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:29:38,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:29:38,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:29:38,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:29:38,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:29:38,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:29:38,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:29:38,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:29:38,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:29:38,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:29:38,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:29:38,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:29:38,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:29:38,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:29:38,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:29:38,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:29:38,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:29:38,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:29:38,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:29:38,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:29:38,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:29:38,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:29:38,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:29:38,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:29:38,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:29:38,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:29:38,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:29:38,833 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 22:29:38,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:29:38,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:29:38,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:29:38,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:29:38,863 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:29:38,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:29:38,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:29:38,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:29:38,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:29:38,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:29:38,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:29:38,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:29:38,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:29:38,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:29:38,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:29:38,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:29:38,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:29:38,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:29:38,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:29:38,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:29:38,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:29:38,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:29:38,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:29:38,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:29:38,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:29:38,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:29:38,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:29:38,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:29:38,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:29:38,869 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 22:29:39,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:29:39,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:29:39,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:29:39,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:29:39,414 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:29:39,415 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-09-24 22:29:39,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7aa47e2c1/bf0d3c4d8905430ea327085674110128/FLAGd8b110d96 [2020-09-24 22:29:40,181 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:29:40,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-09-24 22:29:40,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7aa47e2c1/bf0d3c4d8905430ea327085674110128/FLAGd8b110d96 [2020-09-24 22:29:40,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7aa47e2c1/bf0d3c4d8905430ea327085674110128 [2020-09-24 22:29:40,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:29:40,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:29:40,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:40,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:29:40,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:29:40,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:40" (1/1) ... [2020-09-24 22:29:40,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:40, skipping insertion in model container [2020-09-24 22:29:40,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:40" (1/1) ... [2020-09-24 22:29:40,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:29:40,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:29:40,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:41,015 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:29:41,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:41,198 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:29:41,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41 WrapperNode [2020-09-24 22:29:41,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:41,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:29:41,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:29:41,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:29:41,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (1/1) ... [2020-09-24 22:29:41,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (1/1) ... [2020-09-24 22:29:41,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (1/1) ... [2020-09-24 22:29:41,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (1/1) ... [2020-09-24 22:29:41,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (1/1) ... [2020-09-24 22:29:41,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (1/1) ... [2020-09-24 22:29:41,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (1/1) ... [2020-09-24 22:29:41,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:29:41,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:29:41,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:29:41,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:29:41,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (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 22:29:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:29:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:29:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:29:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:29:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:29:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:29:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:29:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:29:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:29:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:29:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:29:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:29:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:29:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:29:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:29:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:29:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:29:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:29:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:29:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:29:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:29:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:29:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:29:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:29:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:29:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:29:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:29:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:29:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:29:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:29:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:29:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:29:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:29:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:29:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:29:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:29:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:29:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:29:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:29:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:29:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:29:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:29:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:29:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:29:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:29:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:29:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:29:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:29:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:29:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:29:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:29:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:29:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:29:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:29:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:29:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:29:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:29:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:29:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:29:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:29:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:29:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:29:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:29:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:29:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:29:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:29:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:29:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:29:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:29:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:29:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:29:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:29:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:29:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:29:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:29:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:29:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:29:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:29:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:29:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:29:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:29:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:29:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:29:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:29:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:29:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:29:42,606 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:29:42,606 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:29:42,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:42 BoogieIcfgContainer [2020-09-24 22:29:42,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:29:42,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:29:42,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:29:42,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:29:42,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:29:40" (1/3) ... [2020-09-24 22:29:42,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e2222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:42, skipping insertion in model container [2020-09-24 22:29:42,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:41" (2/3) ... [2020-09-24 22:29:42,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e2222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:42, skipping insertion in model container [2020-09-24 22:29:42,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:42" (3/3) ... [2020-09-24 22:29:42,624 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-09-24 22:29:42,635 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:29:42,644 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:29:42,665 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:29:42,700 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:29:42,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:29:42,700 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:29:42,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:29:42,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:29:42,700 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:29:42,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:29:42,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:29:42,735 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-09-24 22:29:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:29:42,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:42,760 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 22:29:42,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:42,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:42,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1368877385, now seen corresponding path program 1 times [2020-09-24 22:29:42,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:42,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428463675] [2020-09-24 22:29:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:43,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:45,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:29:48,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:48,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 22:29:48,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:29:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:29:48,654 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:48,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 22:29:48,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:48,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:48,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:48,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:48,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:48,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:48,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:48,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:48,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:29:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:48,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:48,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:48,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:48,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:29:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:48,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:48,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:48,906 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 22:29:48,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428463675] [2020-09-24 22:29:48,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:48,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:29:48,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796418672] [2020-09-24 22:29:48,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:29:48,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:48,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:29:48,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:48,938 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-09-24 22:29:50,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:50,399 INFO L93 Difference]: Finished difference Result 525 states and 623 transitions. [2020-09-24 22:29:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:29:50,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:29:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:50,423 INFO L225 Difference]: With dead ends: 525 [2020-09-24 22:29:50,423 INFO L226 Difference]: Without dead ends: 321 [2020-09-24 22:29:50,429 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 22:29:50,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-24 22:29:50,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-09-24 22:29:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 22:29:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 303 transitions. [2020-09-24 22:29:50,552 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 303 transitions. Word has length 153 [2020-09-24 22:29:50,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:50,553 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 303 transitions. [2020-09-24 22:29:50,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:29:50,553 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 303 transitions. [2020-09-24 22:29:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:29:50,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:50,559 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 22:29:50,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:29:50,559 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:50,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:50,560 INFO L82 PathProgramCache]: Analyzing trace with hash -519128140, now seen corresponding path program 1 times [2020-09-24 22:29:50,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:50,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052393387] [2020-09-24 22:29:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:50,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:50,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:55,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:55,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:29:55,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 22:29:55,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:55,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:55,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:29:55,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:55,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:29:55,951 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:55,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:56,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 22:29:56,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:56,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:56,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:56,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:56,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:56,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:56,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:56,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:56,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:56,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:56,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:56,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:56,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:56,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:56,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:56,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:29:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:56,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:56,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:56,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:56,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:29:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:56,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:56,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:29:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:56,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:56,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:56,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:56,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:56,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:56,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:29:56,261 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 22:29:56,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052393387] [2020-09-24 22:29:56,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:56,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:29:56,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309282066] [2020-09-24 22:29:56,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:29:56,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:56,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:29:56,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:29:56,268 INFO L87 Difference]: Start difference. First operand 278 states and 303 transitions. Second operand 4 states. [2020-09-24 22:29:56,885 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:57,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:57,967 INFO L93 Difference]: Finished difference Result 436 states and 490 transitions. [2020-09-24 22:29:57,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:57,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:29:57,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:57,974 INFO L225 Difference]: With dead ends: 436 [2020-09-24 22:29:57,974 INFO L226 Difference]: Without dead ends: 304 [2020-09-24 22:29:57,976 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 22:29:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-24 22:29:58,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 268. [2020-09-24 22:29:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 22:29:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-24 22:29:58,023 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 154 [2020-09-24 22:29:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:58,024 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-24 22:29:58,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:58,024 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-24 22:29:58,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 22:29:58,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:58,027 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 22:29:58,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:29:58,028 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:58,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2138906807, now seen corresponding path program 1 times [2020-09-24 22:29:58,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:58,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954821499] [2020-09-24 22:29:58,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:58,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:58,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:01,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:01,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 22:30:01,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:30:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3752 [2020-09-24 22:30:01,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:30:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 22:30:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 22:30:01,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,195 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:02,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:02,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-24 22:30:02,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 22:30:02,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:02,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:02,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:02,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:02,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:02,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:02,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:02,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:30:02,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:02,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:02,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:02,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:02,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:02,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:02,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:02,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:30:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:02,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:02,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:02,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:02,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:02,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:30:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:02,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:02,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:02,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:02,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 22:30:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:02,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:02,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:02,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:02,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:02,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:02,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:02,542 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 22:30:02,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954821499] [2020-09-24 22:30:02,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:02,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:30:02,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125924241] [2020-09-24 22:30:02,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:30:02,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:02,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:30:02,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:30:02,545 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 4 states. [2020-09-24 22:30:03,067 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:04,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:04,889 INFO L93 Difference]: Finished difference Result 632 states and 721 transitions. [2020-09-24 22:30:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:30:04,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 22:30:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:04,898 INFO L225 Difference]: With dead ends: 632 [2020-09-24 22:30:04,899 INFO L226 Difference]: Without dead ends: 474 [2020-09-24 22:30:04,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:30:04,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-24 22:30:04,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 420. [2020-09-24 22:30:04,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-09-24 22:30:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 465 transitions. [2020-09-24 22:30:04,971 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 465 transitions. Word has length 163 [2020-09-24 22:30:04,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:04,971 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 465 transitions. [2020-09-24 22:30:04,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:30:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 465 transitions. [2020-09-24 22:30:04,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 22:30:04,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:04,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:04,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:30:04,975 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:04,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:04,976 INFO L82 PathProgramCache]: Analyzing trace with hash -2098385337, now seen corresponding path program 1 times [2020-09-24 22:30:04,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:04,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231105699] [2020-09-24 22:30:04,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:05,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:06,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 22:30:06,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1730 [2020-09-24 22:30:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:30:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:30:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 22:30:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,182 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:07,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:07,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-24 22:30:07,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 22:30:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:07,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:07,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:07,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:07,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:07,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:07,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:07,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:30:07,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:07,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:07,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:07,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:07,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 22:30:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:30:07,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:07,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:30:07,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 22:30:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:07,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:07,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 22:30:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:07,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:30:07,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:30:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:30:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:07,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:07,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:07,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:07,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:07,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:07,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:07,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:07,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:07,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:07,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:07,699 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 22:30:07,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231105699] [2020-09-24 22:30:07,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:07,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:30:07,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452838319] [2020-09-24 22:30:07,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:30:07,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:07,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:30:07,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:30:07,704 INFO L87 Difference]: Start difference. First operand 420 states and 465 transitions. Second operand 10 states. [2020-09-24 22:30:08,380 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:10,568 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:11,181 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 22:30:11,584 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:30:11,946 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:12,297 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:30:12,625 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:30:12,960 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:30:13,457 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:14,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:14,559 INFO L93 Difference]: Finished difference Result 1135 states and 1392 transitions. [2020-09-24 22:30:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:30:14,560 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-24 22:30:14,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:14,568 INFO L225 Difference]: With dead ends: 1135 [2020-09-24 22:30:14,568 INFO L226 Difference]: Without dead ends: 825 [2020-09-24 22:30:14,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:30:14,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-09-24 22:30:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 701. [2020-09-24 22:30:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-09-24 22:30:14,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 800 transitions. [2020-09-24 22:30:14,678 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 800 transitions. Word has length 172 [2020-09-24 22:30:14,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:14,679 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 800 transitions. [2020-09-24 22:30:14,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:30:14,679 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 800 transitions. [2020-09-24 22:30:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 22:30:14,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:14,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:14,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:30:14,685 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:14,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:14,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1702574382, now seen corresponding path program 1 times [2020-09-24 22:30:14,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:14,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168922291] [2020-09-24 22:30:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:30:14,754 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:30:14,754 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:30:14,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:30:14,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:30:14 BoogieIcfgContainer [2020-09-24 22:30:14,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:30:14,790 INFO L168 Benchmark]: Toolchain (without parser) took 34351.01 ms. Allocated memory was 146.3 MB in the beginning and 629.7 MB in the end (delta: 483.4 MB). Free memory was 100.5 MB in the beginning and 410.6 MB in the end (delta: -310.1 MB). Peak memory consumption was 173.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:30:14,791 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:30:14,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.04 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 99.9 MB in the beginning and 170.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-24 22:30:14,793 INFO L168 Benchmark]: Boogie Preprocessor took 116.70 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 166.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:30:14,794 INFO L168 Benchmark]: RCFGBuilder took 1296.68 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 172.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-09-24 22:30:14,795 INFO L168 Benchmark]: TraceAbstraction took 32172.56 ms. Allocated memory was 235.4 MB in the beginning and 629.7 MB in the end (delta: 394.3 MB). Free memory was 172.9 MB in the beginning and 410.6 MB in the end (delta: -237.7 MB). Peak memory consumption was 156.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:30:14,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.04 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 99.9 MB in the beginning and 170.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.70 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 166.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1296.68 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 172.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32172.56 ms. Allocated memory was 235.4 MB in the beginning and 629.7 MB in the end (delta: 394.3 MB). Free memory was 172.9 MB in the beginning and 410.6 MB in the end (delta: -237.7 MB). Peak memory consumption was 156.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; [L554] FCALL select_helpers() [L555] FCALL select_features() [L556] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L556] RET, EXPR valid_product() [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) [L560] FCALL setup() [L561] CALL runTest() [L540] CALL test() [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 [L164] COND TRUE 1 [L166] COND TRUE splverifierCounter < 4 [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) [L176] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L176] RET waterRise() [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) [L202] CALL stopSystem() [L426] COND FALSE !(\read(pumpRunning)) [L433] systemActive = 0 [L202] RET stopSystem() [L209] CALL timeShift() [L233] COND FALSE !(\read(pumpRunning)) [L240] COND FALSE !(\read(systemActive)) [L248] CALL __utac_acc__Specification3_spec__1() [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L446] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L446] RET, EXPR isMethaneLevelCritical() [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L452] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L452] RET, EXPR getWaterLevel() [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L456] CALL, EXPR isPumpRunning() [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); [L456] RET, EXPR isPumpRunning() [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) [L462] CALL __automaton_fail() [L977] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 649 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1069 SDtfs, 1390 SDslu, 815 SDs, 0 SdLazy, 2359 SolverSat, 463 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=701occurred 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, 257 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 266695 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...