/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:29:01,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:29:01,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:29:01,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:29:01,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:29:01,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:29:01,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:29:01,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:29:01,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:29:01,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:29:01,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:29:01,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:29:01,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:29:01,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:29:01,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:29:01,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:29:01,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:29:01,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:29:01,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:29:01,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:29:01,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:29:01,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:29:01,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:29:01,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:29:01,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:29:01,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:29:01,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:29:01,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:29:01,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:29:01,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:29:01,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:29:01,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:29:01,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:29:01,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:29:01,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:29:01,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:29:01,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:29:01,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:29:01,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:29:01,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:29:01,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:29:01,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:29:01,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:29:01,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:29:01,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:29:01,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:29:01,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:29:01,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:29:01,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:29:01,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:29:01,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:29:01,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:29:01,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:29:01,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:29:01,559 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:29:01,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:29:01,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:29:01,560 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:29:01,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:29:01,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:29:01,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:29:01,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:29:01,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:29:01,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:29:01,562 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 20:29:01,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:29:01,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:29:02,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:29:02,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:29:02,006 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:29:02,007 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-04 20:29:02,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b320879a/b6ad80760b984211b6ac85f8eb6a2699/FLAG5024c0932 [2020-09-04 20:29:02,751 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:29:02,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-04 20:29:02,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b320879a/b6ad80760b984211b6ac85f8eb6a2699/FLAG5024c0932 [2020-09-04 20:29:02,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b320879a/b6ad80760b984211b6ac85f8eb6a2699 [2020-09-04 20:29:02,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:29:02,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:29:02,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:29:02,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:29:02,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:29:02,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:29:02" (1/1) ... [2020-09-04 20:29:03,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248aaf70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:02, skipping insertion in model container [2020-09-04 20:29:03,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:29:02" (1/1) ... [2020-09-04 20:29:03,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:29:03,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:29:03,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:29:03,561 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:29:03,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:29:03,696 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:29:03,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03 WrapperNode [2020-09-04 20:29:03,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:29:03,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:29:03,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:29:03,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:29:03,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... [2020-09-04 20:29:03,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... [2020-09-04 20:29:03,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... [2020-09-04 20:29:03,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... [2020-09-04 20:29:03,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... [2020-09-04 20:29:03,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... [2020-09-04 20:29:03,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... [2020-09-04 20:29:03,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:29:03,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:29:03,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:29:03,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:29:03,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:29:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:29:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:29:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:29:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:29:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:29:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:29:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:29:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:29:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:29:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:29:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:29:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:29:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 20:29:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:29:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:29:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:29:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:29:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:29:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:29:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:29:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:29:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 20:29:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:29:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 20:29:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:29:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:29:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:29:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:29:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:29:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:29:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:29:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:29:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:29:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:29:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:29:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:29:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:29:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:29:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:29:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:29:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:29:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:29:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 20:29:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:29:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:29:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:29:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:29:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:29:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:29:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:29:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:29:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:29:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:29:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:29:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:29:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:29:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:29:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:29:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:29:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:29:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:29:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:29:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:29:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:29:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:29:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 20:29:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:29:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:29:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:29:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:29:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:29:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:29:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:29:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:29:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 20:29:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:29:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:29:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:29:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:29:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:29:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:29:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:29:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:29:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 20:29:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 20:29:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:29:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:29:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:29:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:29:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:29:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:29:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:29:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:29:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:29:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:29:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:29:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:29:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:29:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:29:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:29:05,032 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:29:05,032 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:29:05,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:29:05 BoogieIcfgContainer [2020-09-04 20:29:05,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:29:05,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:29:05,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:29:05,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:29:05,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:29:02" (1/3) ... [2020-09-04 20:29:05,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14523f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:29:05, skipping insertion in model container [2020-09-04 20:29:05,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:29:03" (2/3) ... [2020-09-04 20:29:05,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14523f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:29:05, skipping insertion in model container [2020-09-04 20:29:05,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:29:05" (3/3) ... [2020-09-04 20:29:05,049 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-09-04 20:29:05,059 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:29:05,069 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:29:05,091 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:29:05,115 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:29:05,115 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:29:05,115 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:29:05,115 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:29:05,115 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:29:05,115 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:29:05,115 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:29:05,115 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:29:05,138 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states. [2020-09-04 20:29:05,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 20:29:05,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:05,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:05,165 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:05,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:05,172 INFO L82 PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times [2020-09-04 20:29:05,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:05,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373579386] [2020-09-04 20:29:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,002 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:06,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:29:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 20:29:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:06,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373579386] [2020-09-04 20:29:06,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:06,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:29:06,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499722063] [2020-09-04 20:29:06,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:29:06,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:06,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:29:06,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:29:06,164 INFO L87 Difference]: Start difference. First operand 342 states. Second operand 3 states. [2020-09-04 20:29:07,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:07,643 INFO L93 Difference]: Finished difference Result 554 states and 662 transitions. [2020-09-04 20:29:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:29:07,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-04 20:29:07,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:07,673 INFO L225 Difference]: With dead ends: 554 [2020-09-04 20:29:07,673 INFO L226 Difference]: Without dead ends: 337 [2020-09-04 20:29:07,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:29:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-04 20:29:07,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 291. [2020-09-04 20:29:07,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-04 20:29:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 320 transitions. [2020-09-04 20:29:07,921 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 320 transitions. Word has length 142 [2020-09-04 20:29:07,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:07,924 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 320 transitions. [2020-09-04 20:29:07,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:29:07,924 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 320 transitions. [2020-09-04 20:29:07,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-04 20:29:07,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:07,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:07,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:29:07,937 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:07,938 INFO L82 PathProgramCache]: Analyzing trace with hash -820599246, now seen corresponding path program 1 times [2020-09-04 20:29:07,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:07,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260165684] [2020-09-04 20:29:07,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,365 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:08,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:29:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:29:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:08,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260165684] [2020-09-04 20:29:08,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:08,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:29:08,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923514829] [2020-09-04 20:29:08,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:29:08,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:08,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:29:08,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:29:08,481 INFO L87 Difference]: Start difference. First operand 291 states and 320 transitions. Second operand 4 states. [2020-09-04 20:29:09,128 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:10,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:10,384 INFO L93 Difference]: Finished difference Result 461 states and 525 transitions. [2020-09-04 20:29:10,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:29:10,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-04 20:29:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:10,391 INFO L225 Difference]: With dead ends: 461 [2020-09-04 20:29:10,391 INFO L226 Difference]: Without dead ends: 320 [2020-09-04 20:29:10,393 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 [2020-09-04 20:29:10,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-04 20:29:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 281. [2020-09-04 20:29:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-04 20:29:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 307 transitions. [2020-09-04 20:29:10,484 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 307 transitions. Word has length 143 [2020-09-04 20:29:10,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:10,485 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 307 transitions. [2020-09-04 20:29:10,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:29:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 307 transitions. [2020-09-04 20:29:10,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-04 20:29:10,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:10,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:10,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:29:10,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:10,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1576489327, now seen corresponding path program 1 times [2020-09-04 20:29:10,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:10,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636427611] [2020-09-04 20:29:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:10,925 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:10,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:10,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:10,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:10,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:11,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:11,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:29:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:11,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-04 20:29:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:11,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 20:29:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:11,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636427611] [2020-09-04 20:29:11,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:11,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:29:11,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440894782] [2020-09-04 20:29:11,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:29:11,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:11,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:29:11,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:29:11,066 INFO L87 Difference]: Start difference. First operand 281 states and 307 transitions. Second operand 10 states. [2020-09-04 20:29:11,601 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:29:12,025 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:29:12,355 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:29:12,676 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:12,983 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:29:13,271 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:14,198 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:17,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:17,293 INFO L93 Difference]: Finished difference Result 782 states and 917 transitions. [2020-09-04 20:29:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:29:17,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-09-04 20:29:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:17,300 INFO L225 Difference]: With dead ends: 782 [2020-09-04 20:29:17,300 INFO L226 Difference]: Without dead ends: 611 [2020-09-04 20:29:17,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:29:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-09-04 20:29:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 512. [2020-09-04 20:29:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-04 20:29:17,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 578 transitions. [2020-09-04 20:29:17,461 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 578 transitions. Word has length 156 [2020-09-04 20:29:17,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:17,462 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 578 transitions. [2020-09-04 20:29:17,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:29:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 578 transitions. [2020-09-04 20:29:17,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-04 20:29:17,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:17,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:17,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:29:17,466 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:17,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:17,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1953483698, now seen corresponding path program 1 times [2020-09-04 20:29:17,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:17,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021945814] [2020-09-04 20:29:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:17,889 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:17,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:17,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:17,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:17,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:17,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:18,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:29:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:18,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 20:29:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:18,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 20:29:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:18,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021945814] [2020-09-04 20:29:18,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:18,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:29:18,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368659438] [2020-09-04 20:29:18,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:29:18,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:18,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:29:18,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:29:18,106 INFO L87 Difference]: Start difference. First operand 512 states and 578 transitions. Second operand 9 states. [2020-09-04 20:29:18,672 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:29:19,935 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:20,274 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:29:20,746 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:29:21,065 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:21,413 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:21,834 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:29:22,193 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:22,895 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:24,489 INFO L93 Difference]: Finished difference Result 1442 states and 1734 transitions. [2020-09-04 20:29:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:29:24,490 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-04 20:29:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:24,507 INFO L225 Difference]: With dead ends: 1442 [2020-09-04 20:29:24,507 INFO L226 Difference]: Without dead ends: 1040 [2020-09-04 20:29:24,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:29:24,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2020-09-04 20:29:24,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 875. [2020-09-04 20:29:24,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2020-09-04 20:29:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1002 transitions. [2020-09-04 20:29:24,866 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1002 transitions. Word has length 161 [2020-09-04 20:29:24,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:24,867 INFO L479 AbstractCegarLoop]: Abstraction has 875 states and 1002 transitions. [2020-09-04 20:29:24,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:29:24,867 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1002 transitions. [2020-09-04 20:29:24,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-04 20:29:24,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:24,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:24,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:29:24,877 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:24,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:24,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1356616012, now seen corresponding path program 1 times [2020-09-04 20:29:24,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:24,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256663238] [2020-09-04 20:29:24,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,290 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:25,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:29:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 20:29:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 20:29:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 20:29:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:25,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256663238] [2020-09-04 20:29:25,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:25,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:29:25,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124569334] [2020-09-04 20:29:25,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:29:25,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:25,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:29:25,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:29:25,542 INFO L87 Difference]: Start difference. First operand 875 states and 1002 transitions. Second operand 10 states. [2020-09-04 20:29:26,245 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:29:27,714 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:27,988 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:29:28,312 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:28,637 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:29:28,939 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:29,793 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:29:30,087 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:30,487 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:32,064 INFO L93 Difference]: Finished difference Result 2250 states and 2781 transitions. [2020-09-04 20:29:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 20:29:32,065 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-04 20:29:32,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:32,073 INFO L225 Difference]: With dead ends: 2250 [2020-09-04 20:29:32,074 INFO L226 Difference]: Without dead ends: 1485 [2020-09-04 20:29:32,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-04 20:29:32,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2020-09-04 20:29:32,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1217. [2020-09-04 20:29:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-09-04 20:29:32,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1409 transitions. [2020-09-04 20:29:32,444 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1409 transitions. Word has length 166 [2020-09-04 20:29:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:32,444 INFO L479 AbstractCegarLoop]: Abstraction has 1217 states and 1409 transitions. [2020-09-04 20:29:32,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:29:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1409 transitions. [2020-09-04 20:29:32,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-04 20:29:32,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:32,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:32,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:29:32,450 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:32,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:32,450 INFO L82 PathProgramCache]: Analyzing trace with hash 515628642, now seen corresponding path program 1 times [2020-09-04 20:29:32,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:32,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61646507] [2020-09-04 20:29:32,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,799 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:32,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:29:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 20:29:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 20:29:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:32,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:33,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:29:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:33,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:29:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:33,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-04 20:29:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-04 20:29:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:33,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61646507] [2020-09-04 20:29:33,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:33,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 20:29:33,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74760400] [2020-09-04 20:29:33,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 20:29:33,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:33,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 20:29:33,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-04 20:29:33,114 INFO L87 Difference]: Start difference. First operand 1217 states and 1409 transitions. Second operand 14 states. [2020-09-04 20:29:33,714 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:34,015 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:29:34,311 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:34,605 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:29:34,886 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:36,075 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:36,379 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:29:36,698 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:37,036 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:29:37,359 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:40,027 INFO L93 Difference]: Finished difference Result 2953 states and 3770 transitions. [2020-09-04 20:29:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-04 20:29:40,027 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 204 [2020-09-04 20:29:40,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:40,041 INFO L225 Difference]: With dead ends: 2953 [2020-09-04 20:29:40,041 INFO L226 Difference]: Without dead ends: 1846 [2020-09-04 20:29:40,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-09-04 20:29:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2020-09-04 20:29:40,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1247. [2020-09-04 20:29:40,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2020-09-04 20:29:40,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1441 transitions. [2020-09-04 20:29:40,642 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1441 transitions. Word has length 204 [2020-09-04 20:29:40,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:40,643 INFO L479 AbstractCegarLoop]: Abstraction has 1247 states and 1441 transitions. [2020-09-04 20:29:40,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 20:29:40,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1441 transitions. [2020-09-04 20:29:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-04 20:29:40,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:40,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:40,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:29:40,647 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:40,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash 101997250, now seen corresponding path program 1 times [2020-09-04 20:29:40,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:40,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476911614] [2020-09-04 20:29:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,016 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:41,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:29:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 20:29:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 20:29:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:29:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:29:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-04 20:29:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-04 20:29:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:41,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476911614] [2020-09-04 20:29:41,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:41,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 20:29:41,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129514315] [2020-09-04 20:29:41,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 20:29:41,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:41,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 20:29:41,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:29:41,242 INFO L87 Difference]: Start difference. First operand 1247 states and 1441 transitions. Second operand 11 states. [2020-09-04 20:29:42,858 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:29:43,171 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:29:43,532 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-04 20:29:43,865 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:44,188 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:29:44,479 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:29:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:46,722 INFO L93 Difference]: Finished difference Result 2995 states and 3739 transitions. [2020-09-04 20:29:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 20:29:46,723 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2020-09-04 20:29:46,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:46,734 INFO L225 Difference]: With dead ends: 2995 [2020-09-04 20:29:46,735 INFO L226 Difference]: Without dead ends: 1858 [2020-09-04 20:29:46,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-04 20:29:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2020-09-04 20:29:47,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1279. [2020-09-04 20:29:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1279 states. [2020-09-04 20:29:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1473 transitions. [2020-09-04 20:29:47,347 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1473 transitions. Word has length 204 [2020-09-04 20:29:47,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:47,347 INFO L479 AbstractCegarLoop]: Abstraction has 1279 states and 1473 transitions. [2020-09-04 20:29:47,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 20:29:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1473 transitions. [2020-09-04 20:29:47,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-04 20:29:47,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:47,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:47,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 20:29:47,352 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:47,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:47,352 INFO L82 PathProgramCache]: Analyzing trace with hash 446110533, now seen corresponding path program 1 times [2020-09-04 20:29:47,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:47,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709594891] [2020-09-04 20:29:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,738 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:29:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:29:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:29:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:29:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:29:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:29:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:29:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 20:29:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 20:29:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:29:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:29:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:29:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-04 20:29:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-04 20:29:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:29:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:29:47,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709594891] [2020-09-04 20:29:47,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:29:47,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 20:29:47,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675436855] [2020-09-04 20:29:47,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 20:29:47,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:29:47,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 20:29:47,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 20:29:47,971 INFO L87 Difference]: Start difference. First operand 1279 states and 1473 transitions. Second operand 8 states. [2020-09-04 20:29:48,554 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:29:49,223 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:29:54,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:29:54,275 INFO L93 Difference]: Finished difference Result 4593 states and 5883 transitions. [2020-09-04 20:29:54,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-04 20:29:54,276 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2020-09-04 20:29:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:29:54,295 INFO L225 Difference]: With dead ends: 4593 [2020-09-04 20:29:54,295 INFO L226 Difference]: Without dead ends: 3424 [2020-09-04 20:29:54,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-09-04 20:29:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2020-09-04 20:29:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 2499. [2020-09-04 20:29:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2499 states. [2020-09-04 20:29:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 2905 transitions. [2020-09-04 20:29:55,475 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 2905 transitions. Word has length 204 [2020-09-04 20:29:55,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:29:55,476 INFO L479 AbstractCegarLoop]: Abstraction has 2499 states and 2905 transitions. [2020-09-04 20:29:55,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 20:29:55,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 2905 transitions. [2020-09-04 20:29:55,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-04 20:29:55,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:29:55,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:29:55,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 20:29:55,482 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:29:55,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:29:55,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2057395573, now seen corresponding path program 1 times [2020-09-04 20:29:55,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:29:55,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260052276] [2020-09-04 20:29:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:29:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:29:55,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:29:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:29:55,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:29:55,901 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:29:55,901 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:29:55,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 20:29:56,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:29:56 BoogieIcfgContainer [2020-09-04 20:29:56,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:29:56,197 INFO L168 Benchmark]: Toolchain (without parser) took 53206.00 ms. Allocated memory was 140.0 MB in the beginning and 1.1 GB in the end (delta: 964.2 MB). Free memory was 102.2 MB in the beginning and 616.0 MB in the end (delta: -513.8 MB). Peak memory consumption was 450.4 MB. Max. memory is 7.1 GB. [2020-09-04 20:29:56,200 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 20:29:56,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.42 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.0 MB in the beginning and 169.0 MB in the end (delta: -67.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-04 20:29:56,206 INFO L168 Benchmark]: Boogie Preprocessor took 97.57 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 165.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:29:56,207 INFO L168 Benchmark]: RCFGBuilder took 1244.23 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.1 MB in the beginning and 167.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2020-09-04 20:29:56,209 INFO L168 Benchmark]: TraceAbstraction took 51153.36 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 868.2 MB). Free memory was 167.1 MB in the beginning and 616.0 MB in the end (delta: -448.9 MB). Peak memory consumption was 419.3 MB. Max. memory is 7.1 GB. [2020-09-04 20:29:56,216 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.42 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.0 MB in the beginning and 169.0 MB in the end (delta: -67.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.57 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 165.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.23 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.1 MB in the beginning and 167.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 51153.36 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 868.2 MB). Free memory was 167.1 MB in the beginning and 616.0 MB in the end (delta: -448.9 MB). Peak memory consumption was 419.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=172, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=151, pumpRunning=141, systemActive=140, waterLevel=144] [L490] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=140, waterLevel=144] [L491] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=144] [L811] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=144] [L908] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=165, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=1] [L909] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L884] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L885] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L890] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L891] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L769] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L770] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L891] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L891] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L893] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L895] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L896] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L416] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L420] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L432] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L434] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L442] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L444] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L941] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L444] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L452] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L454] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L732] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L454] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L469] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L505] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L579] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L553] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L527] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L677] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L678] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L988] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L991] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L995] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L996] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L682] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L684] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L687] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L689] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L532] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L536] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L536] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L571] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L597] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L507] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L513] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L777] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L778] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L947] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L950] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L951] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L782] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L784] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L631] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L634] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L635] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L786] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L788] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L790] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L806] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 659 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 50.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 41.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2248 SDtfs, 4800 SDslu, 4379 SDs, 0 SdLazy, 10279 SolverSat, 1620 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2499occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2720 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1589 NumberOfCodeBlocks, 1589 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1372 ConstructedInterpolants, 0 QuantifiedInterpolants, 588911 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...