/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:39:48,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:39:48,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:39:48,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:39:48,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:39:48,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:39:48,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:39:48,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:39:48,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:39:48,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:39:48,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:39:48,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:39:48,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:39:48,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:39:48,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:39:48,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:39:48,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:39:48,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:39:48,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:39:48,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:39:48,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:39:48,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:39:48,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:39:48,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:39:48,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:39:48,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:39:48,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:39:48,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:39:48,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:39:48,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:39:48,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:39:48,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:39:48,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:39:48,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:39:48,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:39:48,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:39:48,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:39:48,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:39:48,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:39:48,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:39:48,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:39:48,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:39:48,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:39:48,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:39:48,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:39:48,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:39:48,722 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:39:48,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:39:48,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:39:48,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:39:48,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:39:48,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:39:48,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:39:48,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:39:48,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:39:48,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:39:48,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:39:48,725 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:39:48,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:39:48,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:39:48,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:39:48,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:39:48,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:39:48,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:39:48,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:39:48,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:39:48,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:39:48,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:39:48,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:39:48,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:39:48,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:39:48,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:39:49,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:39:49,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:39:49,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:39:49,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:39:49,080 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:39:49,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-07-07 10:39:49,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aab973b6/65a31fb0471f4e0d8885f2ac25d87705/FLAG701981193 [2020-07-07 10:39:49,746 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:39:49,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-07-07 10:39:49,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aab973b6/65a31fb0471f4e0d8885f2ac25d87705/FLAG701981193 [2020-07-07 10:39:49,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aab973b6/65a31fb0471f4e0d8885f2ac25d87705 [2020-07-07 10:39:49,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:39:50,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:39:50,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:39:50,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:39:50,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:39:50,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:39:49" (1/1) ... [2020-07-07 10:39:50,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cd7b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50, skipping insertion in model container [2020-07-07 10:39:50,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:39:49" (1/1) ... [2020-07-07 10:39:50,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:39:50,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:39:50,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:39:50,544 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:39:50,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:39:50,683 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:39:50,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50 WrapperNode [2020-07-07 10:39:50,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:39:50,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:39:50,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:39:50,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:39:50,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... [2020-07-07 10:39:50,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... [2020-07-07 10:39:50,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... [2020-07-07 10:39:50,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... [2020-07-07 10:39:50,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... [2020-07-07 10:39:50,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... [2020-07-07 10:39:50,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... [2020-07-07 10:39:50,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:39:50,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:39:50,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:39:50,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:39:50,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-07 10:39:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:39:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:39:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:39:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-07 10:39:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:39:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:39:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:39:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:39:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:39:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:39:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:39:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:39:50,855 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:39:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:39:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:39:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:39:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:39:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:39:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:39:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 10:39:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:39:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:39:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:39:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:39:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:39:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:39:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:39:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 10:39:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:39:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:39:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:39:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:39:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:39:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:39:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:39:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:39:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:39:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:39:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:39:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:39:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 10:39:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:39:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:39:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:39:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:39:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:39:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:39:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-07 10:39:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:39:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:39:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:39:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:39:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:39:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:39:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:39:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:39:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:39:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:39:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:39:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:39:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:39:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:39:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:39:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:39:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:39:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:39:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:39:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:39:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:39:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:39:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:39:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:39:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:39:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:39:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:39:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:39:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:39:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:39:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:39:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:39:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:39:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 10:39:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:39:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:39:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:39:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:39:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:39:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:39:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 10:39:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 10:39:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:39:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:39:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:39:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:39:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:39:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:39:52,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:39:52,158 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:39:52,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:39:52 BoogieIcfgContainer [2020-07-07 10:39:52,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:39:52,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:39:52,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:39:52,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:39:52,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:39:49" (1/3) ... [2020-07-07 10:39:52,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb9834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:39:52, skipping insertion in model container [2020-07-07 10:39:52,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:50" (2/3) ... [2020-07-07 10:39:52,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb9834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:39:52, skipping insertion in model container [2020-07-07 10:39:52,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:39:52" (3/3) ... [2020-07-07 10:39:52,172 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-07-07 10:39:52,183 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:39:52,191 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:39:52,206 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:39:52,231 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:39:52,231 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:39:52,231 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:39:52,231 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:39:52,232 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:39:52,232 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:39:52,232 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:39:52,232 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:39:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-07 10:39:52,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:39:52,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:52,270 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] [2020-07-07 10:39:52,270 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:52,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:52,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1737906003, now seen corresponding path program 1 times [2020-07-07 10:39:52,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:52,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940566800] [2020-07-07 10:39:52,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,947 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:53,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940566800] [2020-07-07 10:39:53,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:53,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:39:53,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050905651] [2020-07-07 10:39:53,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:39:53,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:53,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:39:53,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:39:53,087 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-07-07 10:39:54,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:54,310 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2020-07-07 10:39:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:39:54,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:39:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:54,328 INFO L225 Difference]: With dead ends: 329 [2020-07-07 10:39:54,329 INFO L226 Difference]: Without dead ends: 177 [2020-07-07 10:39:54,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:39:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-07-07 10:39:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 143. [2020-07-07 10:39:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-07 10:39:54,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2020-07-07 10:39:54,445 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 46 [2020-07-07 10:39:54,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:54,446 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2020-07-07 10:39:54,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:39:54,446 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2020-07-07 10:39:54,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:39:54,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:54,450 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] [2020-07-07 10:39:54,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:39:54,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:54,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1744597296, now seen corresponding path program 1 times [2020-07-07 10:39:54,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:54,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855459498] [2020-07-07 10:39:54,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,791 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:54,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855459498] [2020-07-07 10:39:54,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:54,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:39:54,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207484413] [2020-07-07 10:39:54,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:39:54,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:54,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:39:54,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:39:54,835 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand 4 states. [2020-07-07 10:39:55,276 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:56,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:56,227 INFO L93 Difference]: Finished difference Result 262 states and 322 transitions. [2020-07-07 10:39:56,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:39:56,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:39:56,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:56,232 INFO L225 Difference]: With dead ends: 262 [2020-07-07 10:39:56,232 INFO L226 Difference]: Without dead ends: 161 [2020-07-07 10:39:56,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:39:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-07 10:39:56,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 134. [2020-07-07 10:39:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-07 10:39:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2020-07-07 10:39:56,270 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 47 [2020-07-07 10:39:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:56,271 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2020-07-07 10:39:56,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:39:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2020-07-07 10:39:56,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-07 10:39:56,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:56,274 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] [2020-07-07 10:39:56,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:39:56,274 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:56,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1316795497, now seen corresponding path program 1 times [2020-07-07 10:39:56,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:56,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078051150] [2020-07-07 10:39:56,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,672 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:56,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078051150] [2020-07-07 10:39:56,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:56,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:39:56,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128549151] [2020-07-07 10:39:56,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:39:56,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:56,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:39:56,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:39:56,741 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 8 states. [2020-07-07 10:39:57,145 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:57,464 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:57,731 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:57,954 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:59,177 INFO L93 Difference]: Finished difference Result 271 states and 336 transitions. [2020-07-07 10:39:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:39:59,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-07 10:39:59,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:59,181 INFO L225 Difference]: With dead ends: 271 [2020-07-07 10:39:59,181 INFO L226 Difference]: Without dead ends: 161 [2020-07-07 10:39:59,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:39:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-07 10:39:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 134. [2020-07-07 10:39:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-07 10:39:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2020-07-07 10:39:59,218 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 51 [2020-07-07 10:39:59,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:59,219 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2020-07-07 10:39:59,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:39:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2020-07-07 10:39:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-07 10:39:59,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:59,225 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] [2020-07-07 10:39:59,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:39:59,225 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:59,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1654731465, now seen corresponding path program 1 times [2020-07-07 10:39:59,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:59,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945075730] [2020-07-07 10:39:59,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,467 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:59,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945075730] [2020-07-07 10:39:59,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:59,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:39:59,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772174376] [2020-07-07 10:39:59,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:39:59,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:59,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:39:59,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:39:59,563 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 6 states. [2020-07-07 10:39:59,920 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:01,120 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:01,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:01,865 INFO L93 Difference]: Finished difference Result 369 states and 459 transitions. [2020-07-07 10:40:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:40:01,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-07-07 10:40:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:01,870 INFO L225 Difference]: With dead ends: 369 [2020-07-07 10:40:01,870 INFO L226 Difference]: Without dead ends: 259 [2020-07-07 10:40:01,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:40:01,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-07 10:40:01,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 218. [2020-07-07 10:40:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-07 10:40:01,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 248 transitions. [2020-07-07 10:40:01,920 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 248 transitions. Word has length 69 [2020-07-07 10:40:01,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:01,921 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 248 transitions. [2020-07-07 10:40:01,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:40:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 248 transitions. [2020-07-07 10:40:01,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-07 10:40:01,924 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:01,924 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] [2020-07-07 10:40:01,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:40:01,925 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:01,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:01,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1727174811, now seen corresponding path program 1 times [2020-07-07 10:40:01,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:01,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583966689] [2020-07-07 10:40:01,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,256 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:40:02,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583966689] [2020-07-07 10:40:02,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:40:02,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:40:02,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207246221] [2020-07-07 10:40:02,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:40:02,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:02,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:40:02,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:40:02,394 INFO L87 Difference]: Start difference. First operand 218 states and 248 transitions. Second operand 8 states. [2020-07-07 10:40:02,762 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:03,996 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:40:04,261 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:40:04,500 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:40:04,729 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:05,022 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:06,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:06,159 INFO L93 Difference]: Finished difference Result 649 states and 794 transitions. [2020-07-07 10:40:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 10:40:06,164 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-07-07 10:40:06,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:06,168 INFO L225 Difference]: With dead ends: 649 [2020-07-07 10:40:06,169 INFO L226 Difference]: Without dead ends: 455 [2020-07-07 10:40:06,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:40:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-07-07 10:40:06,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 391. [2020-07-07 10:40:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-07 10:40:06,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 446 transitions. [2020-07-07 10:40:06,259 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 446 transitions. Word has length 83 [2020-07-07 10:40:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:06,260 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 446 transitions. [2020-07-07 10:40:06,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:40:06,260 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 446 transitions. [2020-07-07 10:40:06,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-07 10:40:06,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:06,263 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] [2020-07-07 10:40:06,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:40:06,264 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:06,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:06,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1108418135, now seen corresponding path program 1 times [2020-07-07 10:40:06,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:06,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279435183] [2020-07-07 10:40:06,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,534 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:40:06,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279435183] [2020-07-07 10:40:06,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:40:06,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 10:40:06,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55430173] [2020-07-07 10:40:06,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 10:40:06,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:06,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 10:40:06,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:40:06,682 INFO L87 Difference]: Start difference. First operand 391 states and 446 transitions. Second operand 9 states. [2020-07-07 10:40:07,096 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:08,153 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:40:08,378 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:08,672 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:40:08,915 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:40:09,147 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:10,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:10,245 INFO L93 Difference]: Finished difference Result 494 states and 614 transitions. [2020-07-07 10:40:10,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 10:40:10,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-07-07 10:40:10,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:10,254 INFO L225 Difference]: With dead ends: 494 [2020-07-07 10:40:10,254 INFO L226 Difference]: Without dead ends: 491 [2020-07-07 10:40:10,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-07 10:40:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-07-07 10:40:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 391. [2020-07-07 10:40:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-07 10:40:10,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 445 transitions. [2020-07-07 10:40:10,361 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 445 transitions. Word has length 87 [2020-07-07 10:40:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:10,362 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 445 transitions. [2020-07-07 10:40:10,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 10:40:10,364 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 445 transitions. [2020-07-07 10:40:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-07 10:40:10,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:10,367 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] [2020-07-07 10:40:10,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:40:10,368 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:10,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:10,368 INFO L82 PathProgramCache]: Analyzing trace with hash 661895326, now seen corresponding path program 1 times [2020-07-07 10:40:10,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:10,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006259653] [2020-07-07 10:40:10,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,618 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:40:10,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006259653] [2020-07-07 10:40:10,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:40:10,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 10:40:10,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263993829] [2020-07-07 10:40:10,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 10:40:10,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:10,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 10:40:10,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:40:10,764 INFO L87 Difference]: Start difference. First operand 391 states and 445 transitions. Second operand 9 states. [2020-07-07 10:40:11,892 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:40:12,148 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:40:12,395 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:12,657 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:13,861 INFO L93 Difference]: Finished difference Result 862 states and 1052 transitions. [2020-07-07 10:40:13,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:40:13,862 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-07-07 10:40:13,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:13,867 INFO L225 Difference]: With dead ends: 862 [2020-07-07 10:40:13,867 INFO L226 Difference]: Without dead ends: 495 [2020-07-07 10:40:13,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:40:13,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-07 10:40:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 401. [2020-07-07 10:40:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-07-07 10:40:13,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 455 transitions. [2020-07-07 10:40:13,944 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 455 transitions. Word has length 88 [2020-07-07 10:40:13,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:13,945 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 455 transitions. [2020-07-07 10:40:13,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 10:40:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 455 transitions. [2020-07-07 10:40:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-07 10:40:13,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:13,947 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] [2020-07-07 10:40:13,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 10:40:13,947 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:13,948 INFO L82 PathProgramCache]: Analyzing trace with hash 936654940, now seen corresponding path program 1 times [2020-07-07 10:40:13,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:13,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168819512] [2020-07-07 10:40:13,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,210 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:40:14,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168819512] [2020-07-07 10:40:14,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:40:14,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 10:40:14,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179538890] [2020-07-07 10:40:14,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 10:40:14,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:14,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 10:40:14,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:40:14,350 INFO L87 Difference]: Start difference. First operand 401 states and 455 transitions. Second operand 11 states. [2020-07-07 10:40:15,097 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:15,427 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:15,734 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:16,585 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:16,832 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:17,099 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:18,392 INFO L93 Difference]: Finished difference Result 886 states and 1094 transitions. [2020-07-07 10:40:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 10:40:18,393 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-07-07 10:40:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:18,398 INFO L225 Difference]: With dead ends: 886 [2020-07-07 10:40:18,399 INFO L226 Difference]: Without dead ends: 509 [2020-07-07 10:40:18,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-07 10:40:18,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-07-07 10:40:18,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 409. [2020-07-07 10:40:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-07-07 10:40:18,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 463 transitions. [2020-07-07 10:40:18,475 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 463 transitions. Word has length 88 [2020-07-07 10:40:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:18,476 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 463 transitions. [2020-07-07 10:40:18,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 10:40:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 463 transitions. [2020-07-07 10:40:18,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-07 10:40:18,478 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:18,478 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] [2020-07-07 10:40:18,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 10:40:18,478 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:18,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:18,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1408012101, now seen corresponding path program 1 times [2020-07-07 10:40:18,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:18,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430961699] [2020-07-07 10:40:18,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,748 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:40:18,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430961699] [2020-07-07 10:40:18,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:40:18,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 10:40:18,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068436260] [2020-07-07 10:40:18,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 10:40:18,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:18,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 10:40:18,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 10:40:18,896 INFO L87 Difference]: Start difference. First operand 409 states and 463 transitions. Second operand 7 states. [2020-07-07 10:40:19,266 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:19,752 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:22,209 INFO L93 Difference]: Finished difference Result 1209 states and 1542 transitions. [2020-07-07 10:40:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 10:40:22,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-07-07 10:40:22,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:22,217 INFO L225 Difference]: With dead ends: 1209 [2020-07-07 10:40:22,217 INFO L226 Difference]: Without dead ends: 824 [2020-07-07 10:40:22,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:40:22,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-07-07 10:40:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 725. [2020-07-07 10:40:22,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-07-07 10:40:22,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 857 transitions. [2020-07-07 10:40:22,362 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 857 transitions. Word has length 88 [2020-07-07 10:40:22,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:22,364 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 857 transitions. [2020-07-07 10:40:22,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 10:40:22,364 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 857 transitions. [2020-07-07 10:40:22,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-07 10:40:22,366 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:22,366 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] [2020-07-07 10:40:22,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 10:40:22,367 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:22,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:22,367 INFO L82 PathProgramCache]: Analyzing trace with hash 350479285, now seen corresponding path program 1 times [2020-07-07 10:40:22,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:22,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495166042] [2020-07-07 10:40:22,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:40:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:40:22,674 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:40:22,675 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:40:22,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 10:40:22,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:40:22 BoogieIcfgContainer [2020-07-07 10:40:22,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:40:22,823 INFO L168 Benchmark]: Toolchain (without parser) took 32823.43 ms. Allocated memory was 137.9 MB in the beginning and 618.7 MB in the end (delta: 480.8 MB). Free memory was 102.2 MB in the beginning and 325.1 MB in the end (delta: -223.0 MB). Peak memory consumption was 257.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:22,824 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:40:22,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.57 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 170.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:22,826 INFO L168 Benchmark]: Boogie Preprocessor took 94.75 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:22,827 INFO L168 Benchmark]: RCFGBuilder took 1384.91 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.2 MB in the beginning and 194.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:22,828 INFO L168 Benchmark]: TraceAbstraction took 30656.49 ms. Allocated memory was 233.8 MB in the beginning and 618.7 MB in the end (delta: 384.8 MB). Free memory was 193.0 MB in the beginning and 325.1 MB in the end (delta: -132.2 MB). Peak memory consumption was 252.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:22,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.57 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 170.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.75 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1384.91 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.2 MB in the beginning and 194.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30656.49 ms. Allocated memory was 233.8 MB in the beginning and 618.7 MB in the end (delta: 384.8 MB). Free memory was 193.0 MB in the beginning and 325.1 MB in the end (delta: -132.2 MB). Peak memory consumption was 252.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int retValue_acc ; [L526] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L532] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L536] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L537] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] int splverifierCounter ; [L779] int tmp ; [L780] int tmp___0 ; [L781] int tmp___1 ; [L782] int tmp___2 ; [L785] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L787] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L789] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L795] tmp = __VERIFIER_nondet_int() [L797] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L799] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE waterLevel < 2 [L897] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L805] tmp___0 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L809] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] COND FALSE !(\read(methaneLevelCritical)) [L911] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L809] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L815] tmp___2 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___2=-2, waterLevel=2] [L830] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L568] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L660] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L616] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L590] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L958] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L961] COND FALSE !(waterLevel < 2) [L965] retValue_acc = 0 [L966] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L745] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L595] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] tmp = isHighWaterLevel() [L597] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L599] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L634] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L660] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L570] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L576] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L73] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 25.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1167 SDtfs, 2093 SDslu, 1031 SDs, 0 SdLazy, 5376 SolverSat, 1308 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 237 SyntacticMatches, 4 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=725occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 586 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 739 NumberOfCodeBlocks, 739 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 200772 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...