/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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:27:37,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:27:37,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:27:37,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:27:37,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:27:37,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:27:37,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:27:37,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:27:37,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:27:37,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:27:37,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:27:37,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:27:37,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:27:37,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:27:37,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:27:37,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:27:37,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:27:37,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:27:37,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:27:37,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:27:37,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:27:37,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:27:37,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:27:37,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:27:37,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:27:37,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:27:37,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:27:37,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:27:37,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:27:37,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:27:37,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:27:37,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:27:37,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:27:37,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:27:37,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:27:37,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:27:37,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:27:37,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:27:37,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:27:37,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:27:37,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:27:37,488 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 20:27:37,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:27:37,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:27:37,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:27:37,508 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:27:37,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:27:37,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:27:37,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:27:37,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:27:37,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:27:37,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:27:37,510 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:27:37,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:27:37,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:27:37,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:27:37,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:27:37,511 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:27:37,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:27:37,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:27:37,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:27:37,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:27:37,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:27:37,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:27:37,513 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 20:27:37,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:27:37,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:27:37,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:27:37,994 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:27:37,996 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:27:37,998 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-09-04 20:27:38,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce82a254/877a2c944e9244848e43e2c6fb22824c/FLAG3f9e6585f [2020-09-04 20:27:38,701 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:27:38,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-09-04 20:27:38,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce82a254/877a2c944e9244848e43e2c6fb22824c/FLAG3f9e6585f [2020-09-04 20:27:38,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce82a254/877a2c944e9244848e43e2c6fb22824c [2020-09-04 20:27:38,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:27:38,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:27:38,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:27:38,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:27:38,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:27:38,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:27:38" (1/1) ... [2020-09-04 20:27:39,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:38, skipping insertion in model container [2020-09-04 20:27:39,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:27:38" (1/1) ... [2020-09-04 20:27:39,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:27:39,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:27:39,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:27:39,433 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:27:39,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:27:39,669 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:27:39,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39 WrapperNode [2020-09-04 20:27:39,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:27:39,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:27:39,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:27:39,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:27:39,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (1/1) ... [2020-09-04 20:27:39,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (1/1) ... [2020-09-04 20:27:39,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (1/1) ... [2020-09-04 20:27:39,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (1/1) ... [2020-09-04 20:27:39,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (1/1) ... [2020-09-04 20:27:39,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (1/1) ... [2020-09-04 20:27:39,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (1/1) ... [2020-09-04 20:27:39,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:27:39,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:27:39,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:27:39,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:27:39,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (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 20:27:39,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:27:39,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:27:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:27:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:27:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:27:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:27:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:27:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:27:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:27:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:27:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:27:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:27:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:27:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:27:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:27:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:27:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:27:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:27:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:27:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:27:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:27:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 20:27:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:27:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:27:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:27:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:27:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:27:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:27:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:27:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 20:27:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:27:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:27:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:27:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:27:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:27:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:27:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:27:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:27:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:27:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:27:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:27:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:27:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:27:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:27:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:27:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:27:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:27:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:27:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:27:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:27:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:27:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:27:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:27:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:27:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:27:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:27:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:27:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:27:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:27:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:27:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:27:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:27:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:27:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:27:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:27:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:27:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:27:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:27:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:27:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:27:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:27:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:27:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:27:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:27:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:27:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:27:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:27:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:27:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:27:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:27:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:27:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:27:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 20:27:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:27:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:27:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:27:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 20:27:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:27:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:27:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:27:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:27:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:27:41,057 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:27:41,058 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:27:41,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:27:41 BoogieIcfgContainer [2020-09-04 20:27:41,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:27:41,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:27:41,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:27:41,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:27:41,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:27:38" (1/3) ... [2020-09-04 20:27:41,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313f3e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:27:41, skipping insertion in model container [2020-09-04 20:27:41,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:39" (2/3) ... [2020-09-04 20:27:41,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313f3e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:27:41, skipping insertion in model container [2020-09-04 20:27:41,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:27:41" (3/3) ... [2020-09-04 20:27:41,080 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2020-09-04 20:27:41,092 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:27:41,105 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:27:41,131 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:27:41,166 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:27:41,166 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:27:41,166 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:27:41,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:27:41,167 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:27:41,167 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:27:41,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:27:41,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:27:41,204 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-09-04 20:27:41,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 20:27:41,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:41,246 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 20:27:41,247 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:41,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2128738986, now seen corresponding path program 1 times [2020-09-04 20:27:41,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:41,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049347319] [2020-09-04 20:27:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,093 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:42,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:27:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 20:27:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,315 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 20:27:42,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049347319] [2020-09-04 20:27:42,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:42,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:27:42,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146477785] [2020-09-04 20:27:42,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:27:42,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:42,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:27:42,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:27:42,369 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 3 states. [2020-09-04 20:27:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:43,757 INFO L93 Difference]: Finished difference Result 476 states and 568 transitions. [2020-09-04 20:27:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:27:43,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-04 20:27:43,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:43,780 INFO L225 Difference]: With dead ends: 476 [2020-09-04 20:27:43,781 INFO L226 Difference]: Without dead ends: 296 [2020-09-04 20:27:43,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:27:43,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-04 20:27:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 254. [2020-09-04 20:27:43,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-04 20:27:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 276 transitions. [2020-09-04 20:27:43,930 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 276 transitions. Word has length 142 [2020-09-04 20:27:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:43,931 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 276 transitions. [2020-09-04 20:27:43,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:27:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 276 transitions. [2020-09-04 20:27:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-04 20:27:43,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:43,936 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 20:27:43,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:27:43,936 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:43,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1334241536, now seen corresponding path program 1 times [2020-09-04 20:27:43,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:43,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308676609] [2020-09-04 20:27:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,372 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:27:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:27:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:44,454 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 20:27:44,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308676609] [2020-09-04 20:27:44,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:44,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:27:44,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509643087] [2020-09-04 20:27:44,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:27:44,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:44,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:27:44,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:27:44,458 INFO L87 Difference]: Start difference. First operand 254 states and 276 transitions. Second operand 4 states. [2020-09-04 20:27:45,113 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:46,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:46,113 INFO L93 Difference]: Finished difference Result 389 states and 439 transitions. [2020-09-04 20:27:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:27:46,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-04 20:27:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:46,121 INFO L225 Difference]: With dead ends: 389 [2020-09-04 20:27:46,122 INFO L226 Difference]: Without dead ends: 279 [2020-09-04 20:27:46,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:27:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-04 20:27:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 244. [2020-09-04 20:27:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-04 20:27:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 263 transitions. [2020-09-04 20:27:46,232 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 263 transitions. Word has length 143 [2020-09-04 20:27:46,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:46,233 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 263 transitions. [2020-09-04 20:27:46,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:27:46,233 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 263 transitions. [2020-09-04 20:27:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-04 20:27:46,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:46,235 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 20:27:46,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:27:46,235 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:46,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:46,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1890436660, now seen corresponding path program 1 times [2020-09-04 20:27:46,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:46,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539393191] [2020-09-04 20:27:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,648 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:46,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:27:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-04 20:27:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 20:27:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:46,815 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 20:27:46,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539393191] [2020-09-04 20:27:46,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:46,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:27:46,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781611686] [2020-09-04 20:27:46,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:27:46,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:46,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:27:46,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:27:46,819 INFO L87 Difference]: Start difference. First operand 244 states and 263 transitions. Second operand 10 states. [2020-09-04 20:27:47,548 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:48,024 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:48,319 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:27:48,615 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:48,897 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:27:49,198 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:50,981 INFO L93 Difference]: Finished difference Result 435 states and 501 transitions. [2020-09-04 20:27:50,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:27:50,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-09-04 20:27:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:50,987 INFO L225 Difference]: With dead ends: 435 [2020-09-04 20:27:50,987 INFO L226 Difference]: Without dead ends: 301 [2020-09-04 20:27:50,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-09-04 20:27:50,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-04 20:27:51,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 244. [2020-09-04 20:27:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-04 20:27:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 262 transitions. [2020-09-04 20:27:51,083 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 262 transitions. Word has length 156 [2020-09-04 20:27:51,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:51,084 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 262 transitions. [2020-09-04 20:27:51,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:27:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 262 transitions. [2020-09-04 20:27:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-04 20:27:51,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:51,086 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] [2020-09-04 20:27:51,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:27:51,087 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:51,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:51,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1501938266, now seen corresponding path program 1 times [2020-09-04 20:27:51,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:51,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68655229] [2020-09-04 20:27:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,458 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:51,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:27:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:27:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 20:27:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-04 20:27:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:51,713 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 20:27:51,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68655229] [2020-09-04 20:27:51,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:51,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 20:27:51,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372277817] [2020-09-04 20:27:51,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 20:27:51,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:51,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 20:27:51,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 20:27:51,716 INFO L87 Difference]: Start difference. First operand 244 states and 262 transitions. Second operand 7 states. [2020-09-04 20:27:52,269 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:53,985 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:54,986 INFO L93 Difference]: Finished difference Result 615 states and 731 transitions. [2020-09-04 20:27:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:27:54,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-04 20:27:54,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:54,994 INFO L225 Difference]: With dead ends: 615 [2020-09-04 20:27:54,995 INFO L226 Difference]: Without dead ends: 481 [2020-09-04 20:27:54,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:27:54,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-09-04 20:27:55,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 354. [2020-09-04 20:27:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-04 20:27:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 381 transitions. [2020-09-04 20:27:55,186 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 381 transitions. Word has length 169 [2020-09-04 20:27:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:55,186 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 381 transitions. [2020-09-04 20:27:55,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 20:27:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 381 transitions. [2020-09-04 20:27:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-04 20:27:55,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:55,189 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] [2020-09-04 20:27:55,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:27:55,190 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:55,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:55,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1109115497, now seen corresponding path program 1 times [2020-09-04 20:27:55,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:55,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501624055] [2020-09-04 20:27:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,521 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:55,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:27:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:27:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:27:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:27:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-04 20:27:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-04 20:27:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,762 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 20:27:55,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501624055] [2020-09-04 20:27:55,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:55,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-04 20:27:55,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855145006] [2020-09-04 20:27:55,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 20:27:55,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:55,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 20:27:55,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-04 20:27:55,765 INFO L87 Difference]: Start difference. First operand 354 states and 381 transitions. Second operand 13 states. [2020-09-04 20:27:56,418 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:56,737 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:27:57,052 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:57,385 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:57,687 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:58,649 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:58,955 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:59,277 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:59,652 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:59,954 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:01,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:01,472 INFO L93 Difference]: Finished difference Result 730 states and 860 transitions. [2020-09-04 20:28:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 20:28:01,473 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-09-04 20:28:01,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:01,478 INFO L225 Difference]: With dead ends: 730 [2020-09-04 20:28:01,479 INFO L226 Difference]: Without dead ends: 486 [2020-09-04 20:28:01,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-09-04 20:28:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-04 20:28:01,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 360. [2020-09-04 20:28:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-09-04 20:28:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 387 transitions. [2020-09-04 20:28:01,617 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 387 transitions. Word has length 193 [2020-09-04 20:28:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:01,617 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 387 transitions. [2020-09-04 20:28:01,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 20:28:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 387 transitions. [2020-09-04 20:28:01,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-04 20:28:01,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:01,620 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] [2020-09-04 20:28:01,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:28:01,621 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:01,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2046057975, now seen corresponding path program 1 times [2020-09-04 20:28:01,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:01,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997612589] [2020-09-04 20:28:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:01,980 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:01,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:28:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:28:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-04 20:28:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-04 20:28:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:02,189 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 20:28:02,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997612589] [2020-09-04 20:28:02,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:02,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:28:02,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973930024] [2020-09-04 20:28:02,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:28:02,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:02,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:28:02,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:28:02,194 INFO L87 Difference]: Start difference. First operand 360 states and 387 transitions. Second operand 10 states. [2020-09-04 20:28:02,728 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:04,416 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:04,719 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:05,039 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:05,336 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:05,639 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:05,937 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:06,242 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:06,678 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:08,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:08,378 INFO L93 Difference]: Finished difference Result 1049 states and 1268 transitions. [2020-09-04 20:28:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 20:28:08,379 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-04 20:28:08,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:08,386 INFO L225 Difference]: With dead ends: 1049 [2020-09-04 20:28:08,386 INFO L226 Difference]: Without dead ends: 799 [2020-09-04 20:28:08,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-04 20:28:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2020-09-04 20:28:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 573. [2020-09-04 20:28:08,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-04 20:28:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 622 transitions. [2020-09-04 20:28:08,598 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 622 transitions. Word has length 193 [2020-09-04 20:28:08,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:08,599 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 622 transitions. [2020-09-04 20:28:08,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:28:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 622 transitions. [2020-09-04 20:28:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-04 20:28:08,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:08,602 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] [2020-09-04 20:28:08,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:28:08,604 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:08,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:08,604 INFO L82 PathProgramCache]: Analyzing trace with hash -135678691, now seen corresponding path program 1 times [2020-09-04 20:28:08,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:08,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736290770] [2020-09-04 20:28:08,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,026 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:09,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:28:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 20:28:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 20:28:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-04 20:28:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-04 20:28:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:09,273 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 20:28:09,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736290770] [2020-09-04 20:28:09,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:09,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 20:28:09,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986839472] [2020-09-04 20:28:09,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 20:28:09,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:09,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 20:28:09,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:28:09,276 INFO L87 Difference]: Start difference. First operand 573 states and 622 transitions. Second operand 11 states. [2020-09-04 20:28:09,820 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:11,496 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:11,810 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:12,117 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:12,420 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:12,736 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:13,087 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:13,378 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:13,738 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:15,021 INFO L93 Difference]: Finished difference Result 934 states and 1156 transitions. [2020-09-04 20:28:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-04 20:28:15,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2020-09-04 20:28:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:15,030 INFO L225 Difference]: With dead ends: 934 [2020-09-04 20:28:15,030 INFO L226 Difference]: Without dead ends: 931 [2020-09-04 20:28:15,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-04 20:28:15,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-09-04 20:28:15,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 573. [2020-09-04 20:28:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-04 20:28:15,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 621 transitions. [2020-09-04 20:28:15,273 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 621 transitions. Word has length 198 [2020-09-04 20:28:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:15,274 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 621 transitions. [2020-09-04 20:28:15,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 20:28:15,274 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 621 transitions. [2020-09-04 20:28:15,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-04 20:28:15,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:15,277 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] [2020-09-04 20:28:15,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 20:28:15,278 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:15,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:15,278 INFO L82 PathProgramCache]: Analyzing trace with hash 212216192, now seen corresponding path program 1 times [2020-09-04 20:28:15,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:15,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800013650] [2020-09-04 20:28:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,565 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:15,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:28:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 20:28:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 20:28:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-04 20:28:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-04 20:28:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:15,851 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 20:28:15,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800013650] [2020-09-04 20:28:15,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:15,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 20:28:15,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214930746] [2020-09-04 20:28:15,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 20:28:15,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:15,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 20:28:15,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:28:15,855 INFO L87 Difference]: Start difference. First operand 573 states and 621 transitions. Second operand 11 states. [2020-09-04 20:28:17,374 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:17,696 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:28:18,027 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-04 20:28:18,342 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:18,662 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:18,957 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:20,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:20,803 INFO L93 Difference]: Finished difference Result 1404 states and 1697 transitions. [2020-09-04 20:28:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 20:28:20,804 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-04 20:28:20,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:20,810 INFO L225 Difference]: With dead ends: 1404 [2020-09-04 20:28:20,810 INFO L226 Difference]: Without dead ends: 941 [2020-09-04 20:28:20,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-04 20:28:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-09-04 20:28:20,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 589. [2020-09-04 20:28:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-09-04 20:28:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 637 transitions. [2020-09-04 20:28:20,977 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 637 transitions. Word has length 199 [2020-09-04 20:28:20,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:20,977 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 637 transitions. [2020-09-04 20:28:20,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 20:28:20,978 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 637 transitions. [2020-09-04 20:28:20,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-04 20:28:20,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:20,981 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] [2020-09-04 20:28:20,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 20:28:20,981 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:20,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:20,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1893019331, now seen corresponding path program 1 times [2020-09-04 20:28:20,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:20,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775550209] [2020-09-04 20:28:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,289 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:28:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 20:28:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 20:28:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-04 20:28:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-04 20:28:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:21,506 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 20:28:21,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775550209] [2020-09-04 20:28:21,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:21,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 20:28:21,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114873394] [2020-09-04 20:28:21,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 20:28:21,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:21,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 20:28:21,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 20:28:21,508 INFO L87 Difference]: Start difference. First operand 589 states and 637 transitions. Second operand 8 states. [2020-09-04 20:28:22,025 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:22,643 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:26,428 INFO L93 Difference]: Finished difference Result 2087 states and 2631 transitions. [2020-09-04 20:28:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-04 20:28:26,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-09-04 20:28:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:26,439 INFO L225 Difference]: With dead ends: 2087 [2020-09-04 20:28:26,439 INFO L226 Difference]: Without dead ends: 1608 [2020-09-04 20:28:26,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-09-04 20:28:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2020-09-04 20:28:26,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1031. [2020-09-04 20:28:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-04 20:28:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1153 transitions. [2020-09-04 20:28:26,807 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1153 transitions. Word has length 199 [2020-09-04 20:28:26,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:26,808 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1153 transitions. [2020-09-04 20:28:26,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 20:28:26,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1153 transitions. [2020-09-04 20:28:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-04 20:28:26,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:26,814 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 20:28:26,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 20:28:26,815 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:26,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1025322585, now seen corresponding path program 1 times [2020-09-04 20:28:26,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:26,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009152196] [2020-09-04 20:28:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:28:26,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:28:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:28:26,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:28:27,222 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:28:27,223 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:28:27,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 20:28:27,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:28:27 BoogieIcfgContainer [2020-09-04 20:28:27,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:28:27,488 INFO L168 Benchmark]: Toolchain (without parser) took 48497.07 ms. Allocated memory was 139.5 MB in the beginning and 896.0 MB in the end (delta: 756.5 MB). Free memory was 102.9 MB in the beginning and 295.0 MB in the end (delta: -192.0 MB). Peak memory consumption was 564.5 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:27,489 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 20:28:27,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.79 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 173.8 MB in the end (delta: -71.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:27,490 INFO L168 Benchmark]: Boogie Preprocessor took 98.37 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:27,491 INFO L168 Benchmark]: RCFGBuilder took 1299.56 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.7 MB in the beginning and 180.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:27,492 INFO L168 Benchmark]: TraceAbstraction took 46414.58 ms. Allocated memory was 237.5 MB in the beginning and 896.0 MB in the end (delta: 658.5 MB). Free memory was 178.8 MB in the beginning and 295.0 MB in the end (delta: -116.1 MB). Peak memory consumption was 542.4 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:27,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.79 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 173.8 MB in the end (delta: -71.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.37 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1299.56 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.7 MB in the beginning and 180.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 46414.58 ms. Allocated memory was 237.5 MB in the beginning and 896.0 MB in the end (delta: 658.5 MB). Free memory was 178.8 MB in the beginning and 295.0 MB in the end (delta: -116.1 MB). Peak memory consumption was 542.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 837]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={176:163}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=139] [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=139] [L580] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=133, waterLevel=139] [L581] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=1, waterLevel=139] [L843] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=1, waterLevel=1] [L844] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] 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] [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L170] 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] [L173] 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] [L174] 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] [L128] 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] [L128] 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] [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L767] 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] [L768] 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] [L769] 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] [L770] 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] [L771] 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] [L774] 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] [L776] 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] [L778] 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] [L784] 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] [L786] 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] [L788] 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] [L861] 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] [L862] 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] [L788] 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] [L794] 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] [L796] 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] [L798] 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] [L873] 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] [L876] 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] [L798] 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] [L804] 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] [L806] 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] [L808] 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] [L761] 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] [L808] 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] [L821] 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] [L587] 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] [L594] 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] [L596] 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] [L642] 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] [L645] 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] [L660] 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] [L616] 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] [L619] 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] [L621] 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] [L739] 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] [L740] 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] [L741] 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] [L745] 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] [L923] 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] [L926] 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] [L930] 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] [L931] 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] [L745] 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] [L745] 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] [L747] 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] [L750] 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] [L752] 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] [L753] 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] [L621] 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] [L621] 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] [L623] 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] [L625] 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] [L670] 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] [L625] 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] [L660] 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] [L596] 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] [L602] 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] [L183] 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] [L184] 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] [L188] 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] [L882] 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] [L885] 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] [L886] 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] [L188] 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] [L188] 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] [L190] 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] [L192] 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] [L694] 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] [L697] 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] [L698] 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] [L192] 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] [L192] 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] [L194] 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] [L196] 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] [L837] __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 39 procedures, 622 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 46.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2184 SDtfs, 5388 SDslu, 4337 SDs, 0 SdLazy, 8644 SolverSat, 1722 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 253 SyntacticMatches, 3 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 16.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1031occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1900 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1796 NumberOfCodeBlocks, 1796 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1583 ConstructedInterpolants, 0 QuantifiedInterpolants, 691855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...