/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:39:33,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:39:33,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:39:33,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:39:33,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:39:33,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:39:33,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:39:33,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:39:33,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:39:33,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:39:33,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:39:33,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:39:33,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:39:33,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:39:33,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:39:33,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:39:33,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:39:33,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:39:33,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:39:33,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:39:33,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:39:33,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:39:33,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:39:33,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:39:33,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:39:33,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:39:33,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:39:33,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:39:33,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:39:33,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:39:33,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:39:33,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:39:33,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:39:33,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:39:33,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:39:33,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:39:33,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:39:33,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:39:33,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:39:33,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:39:33,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:39:33,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:39:33,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:39:33,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:39:33,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:39:33,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:39:33,701 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:39:33,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:39:33,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:39:33,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:39:33,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:39:33,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:39:33,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:39:33,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:39:33,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:39:33,704 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:39:33,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:39:33,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:39:33,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:39:33,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:39:33,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:39:33,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:39:33,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:39:33,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:39:33,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:39:33,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:39:33,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:39:33,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:39:33,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:39:33,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:39:33,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:39:33,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:39:33,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:39:33,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:39:33,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:39:33,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:39:33,990 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:39:33,991 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-07-07 10:39:34,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e47fd03/a5f98a7a67684296b079fc58e434c595/FLAG17abe58b9 [2020-07-07 10:39:34,637 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:39:34,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-07-07 10:39:34,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e47fd03/a5f98a7a67684296b079fc58e434c595/FLAG17abe58b9 [2020-07-07 10:39:34,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e47fd03/a5f98a7a67684296b079fc58e434c595 [2020-07-07 10:39:34,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:39:34,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:39:34,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:39:34,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:39:34,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:39:34,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:39:34" (1/1) ... [2020-07-07 10:39:34,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106af91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:34, skipping insertion in model container [2020-07-07 10:39:34,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:39:34" (1/1) ... [2020-07-07 10:39:34,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:39:34,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:39:35,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:39:35,396 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:39:35,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:39:35,510 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:39:35,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35 WrapperNode [2020-07-07 10:39:35,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:39:35,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:39:35,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:39:35,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:39:35,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... [2020-07-07 10:39:35,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... [2020-07-07 10:39:35,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... [2020-07-07 10:39:35,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... [2020-07-07 10:39:35,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... [2020-07-07 10:39:35,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... [2020-07-07 10:39:35,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... [2020-07-07 10:39:35,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:39:35,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:39:35,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:39:35,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:39:35,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:39:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:39:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:39:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:39:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:39:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:39:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:39:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:39:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:39:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:39:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:39:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:39:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:39:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:39:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:39:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:39:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:39:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:39:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:39:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:39:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:39:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-07 10:39:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:39:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:39:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:39:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:39:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:39:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:39:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 10:39:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:39:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-07 10:39:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:39:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:39:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:39:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:39:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:39:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:39:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:39:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:39:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:39:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:39:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:39:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:39:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:39:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:39:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:39:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:39:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:39:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:39:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:39:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:39:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:39:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:39:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:39:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:39:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:39:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:39:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:39:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:39:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:39:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 10:39:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:39:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:39:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:39:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:39:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:39:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:39:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:39:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-07 10:39:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:39:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:39:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:39:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-07 10:39:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:39:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:39:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:39:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:39:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:39:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:39:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:39:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:39:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:39:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:39:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:39:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:39:35,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:39:36,773 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:39:36,774 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:39:36,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:39:36 BoogieIcfgContainer [2020-07-07 10:39:36,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:39:36,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:39:36,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:39:36,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:39:36,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:39:34" (1/3) ... [2020-07-07 10:39:36,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b4fed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:39:36, skipping insertion in model container [2020-07-07 10:39:36,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:35" (2/3) ... [2020-07-07 10:39:36,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b4fed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:39:36, skipping insertion in model container [2020-07-07 10:39:36,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:39:36" (3/3) ... [2020-07-07 10:39:36,787 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-07-07 10:39:36,798 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:39:36,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:39:36,821 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:39:36,847 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:39:36,847 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:39:36,847 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:39:36,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:39:36,848 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:39:36,848 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:39:36,848 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:39:36,848 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:39:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-07-07 10:39:36,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:39:36,881 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:36,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:36,883 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:36,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:36,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1542772809, now seen corresponding path program 1 times [2020-07-07 10:39:36,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:36,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894022840] [2020-07-07 10:39:36,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,569 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:37,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894022840] [2020-07-07 10:39:37,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:37,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:39:37,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048887503] [2020-07-07 10:39:37,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:39:37,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:37,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:39:37,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:39:37,705 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-07-07 10:39:38,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:38,913 INFO L93 Difference]: Finished difference Result 284 states and 371 transitions. [2020-07-07 10:39:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:39:38,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:39:38,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:38,930 INFO L225 Difference]: With dead ends: 284 [2020-07-07 10:39:38,930 INFO L226 Difference]: Without dead ends: 154 [2020-07-07 10:39:38,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:39:38,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-07 10:39:39,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2020-07-07 10:39:39,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-07-07 10:39:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-07-07 10:39:39,032 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 46 [2020-07-07 10:39:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:39,033 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-07-07 10:39:39,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:39:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-07-07 10:39:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:39:39,039 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:39,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:39,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:39:39,040 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:39,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:39,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1355296267, now seen corresponding path program 1 times [2020-07-07 10:39:39,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:39,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134713472] [2020-07-07 10:39:39,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,502 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:39,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134713472] [2020-07-07 10:39:39,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:39,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:39:39,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817530255] [2020-07-07 10:39:39,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:39:39,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:39,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:39:39,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:39:39,549 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 4 states. [2020-07-07 10:39:40,030 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:40,880 INFO L93 Difference]: Finished difference Result 213 states and 258 transitions. [2020-07-07 10:39:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:39:40,881 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:39:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:40,883 INFO L225 Difference]: With dead ends: 213 [2020-07-07 10:39:40,883 INFO L226 Difference]: Without dead ends: 138 [2020-07-07 10:39:40,885 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 [2020-07-07 10:39:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-07 10:39:40,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2020-07-07 10:39:40,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-07-07 10:39:40,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 129 transitions. [2020-07-07 10:39:40,918 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 129 transitions. Word has length 47 [2020-07-07 10:39:40,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:40,918 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 129 transitions. [2020-07-07 10:39:40,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:39:40,918 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 129 transitions. [2020-07-07 10:39:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:39:40,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:40,920 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] [2020-07-07 10:39:40,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:39:40,921 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:40,921 INFO L82 PathProgramCache]: Analyzing trace with hash 604849678, now seen corresponding path program 1 times [2020-07-07 10:39:40,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:40,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386609232] [2020-07-07 10:39:40,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,292 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:41,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386609232] [2020-07-07 10:39:41,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:41,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:39:41,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347669753] [2020-07-07 10:39:41,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:39:41,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:41,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:39:41,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:39:41,409 INFO L87 Difference]: Start difference. First operand 112 states and 129 transitions. Second operand 8 states. [2020-07-07 10:39:41,868 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:42,250 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:42,595 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:42,891 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:44,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:44,088 INFO L93 Difference]: Finished difference Result 226 states and 276 transitions. [2020-07-07 10:39:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:39:44,089 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-07 10:39:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:44,092 INFO L225 Difference]: With dead ends: 226 [2020-07-07 10:39:44,092 INFO L226 Difference]: Without dead ends: 138 [2020-07-07 10:39:44,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:39:44,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-07 10:39:44,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2020-07-07 10:39:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-07-07 10:39:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2020-07-07 10:39:44,125 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 52 [2020-07-07 10:39:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:44,125 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2020-07-07 10:39:44,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:39:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2020-07-07 10:39:44,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-07 10:39:44,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:44,128 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] [2020-07-07 10:39:44,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:39:44,128 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:44,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:44,128 INFO L82 PathProgramCache]: Analyzing trace with hash 2012335283, now seen corresponding path program 1 times [2020-07-07 10:39:44,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:44,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186457628] [2020-07-07 10:39:44,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,457 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:44,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186457628] [2020-07-07 10:39:44,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:44,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:39:44,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781175455] [2020-07-07 10:39:44,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:39:44,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:44,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:39:44,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:39:44,571 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 6 states. [2020-07-07 10:39:45,008 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:46,311 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:46,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:46,994 INFO L93 Difference]: Finished difference Result 314 states and 386 transitions. [2020-07-07 10:39:46,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 10:39:46,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-07-07 10:39:46,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:46,998 INFO L225 Difference]: With dead ends: 314 [2020-07-07 10:39:46,999 INFO L226 Difference]: Without dead ends: 226 [2020-07-07 10:39:47,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:39:47,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-07 10:39:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 183. [2020-07-07 10:39:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-07-07 10:39:47,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 209 transitions. [2020-07-07 10:39:47,041 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 209 transitions. Word has length 60 [2020-07-07 10:39:47,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:47,041 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 209 transitions. [2020-07-07 10:39:47,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:39:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 209 transitions. [2020-07-07 10:39:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-07 10:39:47,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:47,043 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] [2020-07-07 10:39:47,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:39:47,044 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:47,044 INFO L82 PathProgramCache]: Analyzing trace with hash 471487289, now seen corresponding path program 1 times [2020-07-07 10:39:47,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:47,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039345969] [2020-07-07 10:39:47,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,370 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:47,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:47,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039345969] [2020-07-07 10:39:47,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:47,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:39:47,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740257419] [2020-07-07 10:39:47,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:39:47,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:47,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:39:47,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:39:47,502 INFO L87 Difference]: Start difference. First operand 183 states and 209 transitions. Second operand 8 states. [2020-07-07 10:39:48,000 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:49,121 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:49,519 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:50,071 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:50,360 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:50,674 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:51,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:51,542 INFO L93 Difference]: Finished difference Result 547 states and 678 transitions. [2020-07-07 10:39:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 10:39:51,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-07 10:39:51,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:51,548 INFO L225 Difference]: With dead ends: 547 [2020-07-07 10:39:51,548 INFO L226 Difference]: Without dead ends: 388 [2020-07-07 10:39:51,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:39:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-07-07 10:39:51,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 321. [2020-07-07 10:39:51,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-07 10:39:51,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 368 transitions. [2020-07-07 10:39:51,625 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 368 transitions. Word has length 74 [2020-07-07 10:39:51,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:51,626 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 368 transitions. [2020-07-07 10:39:51,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:39:51,626 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 368 transitions. [2020-07-07 10:39:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-07 10:39:51,628 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:51,628 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] [2020-07-07 10:39:51,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:39:51,629 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:51,629 INFO L82 PathProgramCache]: Analyzing trace with hash -968585995, now seen corresponding path program 1 times [2020-07-07 10:39:51,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:51,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931944032] [2020-07-07 10:39:51,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:51,940 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:52,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:39:52,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931944032] [2020-07-07 10:39:52,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:52,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 10:39:52,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248021022] [2020-07-07 10:39:52,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 10:39:52,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:52,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 10:39:52,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:39:52,066 INFO L87 Difference]: Start difference. First operand 321 states and 368 transitions. Second operand 9 states. [2020-07-07 10:39:52,527 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:53,805 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:54,143 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:55,185 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:55,507 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:55,806 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:56,104 INFO L93 Difference]: Finished difference Result 430 states and 544 transitions. [2020-07-07 10:39:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 10:39:56,105 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-07-07 10:39:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:56,109 INFO L225 Difference]: With dead ends: 430 [2020-07-07 10:39:56,110 INFO L226 Difference]: Without dead ends: 427 [2020-07-07 10:39:56,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-07 10:39:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-07-07 10:39:56,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 321. [2020-07-07 10:39:56,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-07 10:39:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 367 transitions. [2020-07-07 10:39:56,177 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 367 transitions. Word has length 78 [2020-07-07 10:39:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:56,177 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 367 transitions. [2020-07-07 10:39:56,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 10:39:56,178 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 367 transitions. [2020-07-07 10:39:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-07 10:39:56,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:56,180 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:56,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:39:56,180 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:56,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:56,181 INFO L82 PathProgramCache]: Analyzing trace with hash 662445521, now seen corresponding path program 1 times [2020-07-07 10:39:56,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:56,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268636014] [2020-07-07 10:39:56,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,495 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-07 10:39:56,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268636014] [2020-07-07 10:39:56,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:56,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 10:39:56,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753043722] [2020-07-07 10:39:56,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 10:39:56,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:56,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 10:39:56,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:39:56,682 INFO L87 Difference]: Start difference. First operand 321 states and 367 transitions. Second operand 9 states. [2020-07-07 10:39:57,660 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:57,944 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:39:58,222 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:58,531 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:59,635 INFO L93 Difference]: Finished difference Result 732 states and 917 transitions. [2020-07-07 10:39:59,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:39:59,635 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-07-07 10:39:59,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:59,639 INFO L225 Difference]: With dead ends: 732 [2020-07-07 10:39:59,639 INFO L226 Difference]: Without dead ends: 435 [2020-07-07 10:39:59,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:39:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-07-07 10:39:59,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 331. [2020-07-07 10:39:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-07-07 10:39:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 377 transitions. [2020-07-07 10:39:59,710 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 377 transitions. Word has length 94 [2020-07-07 10:39:59,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:59,711 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 377 transitions. [2020-07-07 10:39:59,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 10:39:59,711 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 377 transitions. [2020-07-07 10:39:59,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-07 10:39:59,713 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:59,713 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:59,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 10:39:59,713 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:59,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:59,714 INFO L82 PathProgramCache]: Analyzing trace with hash -234947757, now seen corresponding path program 1 times [2020-07-07 10:39:59,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:59,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921886577] [2020-07-07 10:39:59,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,017 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-07 10:40:00,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921886577] [2020-07-07 10:40:00,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:40:00,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 10:40:00,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762850674] [2020-07-07 10:40:00,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 10:40:00,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:00,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 10:40:00,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:40:00,186 INFO L87 Difference]: Start difference. First operand 331 states and 377 transitions. Second operand 11 states. [2020-07-07 10:40:00,963 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:01,291 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:01,646 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:02,342 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:02,633 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:02,932 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:40:04,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:04,141 INFO L93 Difference]: Finished difference Result 752 states and 939 transitions. [2020-07-07 10:40:04,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 10:40:04,147 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-07-07 10:40:04,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:04,151 INFO L225 Difference]: With dead ends: 752 [2020-07-07 10:40:04,151 INFO L226 Difference]: Without dead ends: 445 [2020-07-07 10:40:04,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-07 10:40:04,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-07-07 10:40:04,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 339. [2020-07-07 10:40:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-07-07 10:40:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 385 transitions. [2020-07-07 10:40:04,220 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 385 transitions. Word has length 94 [2020-07-07 10:40:04,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:04,221 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 385 transitions. [2020-07-07 10:40:04,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 10:40:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 385 transitions. [2020-07-07 10:40:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-07 10:40:04,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:04,224 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:40:04,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 10:40:04,225 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:04,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:04,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1735991700, now seen corresponding path program 1 times [2020-07-07 10:40:04,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:04,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659507991] [2020-07-07 10:40:04,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,565 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-07 10:40:04,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659507991] [2020-07-07 10:40:04,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:40:04,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 10:40:04,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290996017] [2020-07-07 10:40:04,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 10:40:04,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:04,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 10:40:04,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 10:40:04,728 INFO L87 Difference]: Start difference. First operand 339 states and 385 transitions. Second operand 7 states. [2020-07-07 10:40:05,300 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:05,832 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:40:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:08,056 INFO L93 Difference]: Finished difference Result 1074 states and 1381 transitions. [2020-07-07 10:40:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 10:40:08,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-07-07 10:40:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:08,062 INFO L225 Difference]: With dead ends: 1074 [2020-07-07 10:40:08,062 INFO L226 Difference]: Without dead ends: 759 [2020-07-07 10:40:08,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:40:08,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-07-07 10:40:08,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 639. [2020-07-07 10:40:08,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-07-07 10:40:08,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 751 transitions. [2020-07-07 10:40:08,228 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 751 transitions. Word has length 94 [2020-07-07 10:40:08,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:08,230 INFO L479 AbstractCegarLoop]: Abstraction has 639 states and 751 transitions. [2020-07-07 10:40:08,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 10:40:08,230 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 751 transitions. [2020-07-07 10:40:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-07 10:40:08,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:08,235 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:40:08,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 10:40:08,235 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:08,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:08,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1966005102, now seen corresponding path program 1 times [2020-07-07 10:40:08,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:08,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320025212] [2020-07-07 10:40:08,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,551 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:40:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 10:40:08,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320025212] [2020-07-07 10:40:08,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445041193] [2020-07-07 10:40:08,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:40:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:40:09,098 INFO L264 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-07 10:40:09,110 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:40:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:40:09,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:40:09,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2020-07-07 10:40:09,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981003982] [2020-07-07 10:40:09,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:40:09,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:40:09,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:40:09,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2020-07-07 10:40:09,344 INFO L87 Difference]: Start difference. First operand 639 states and 751 transitions. Second operand 8 states. [2020-07-07 10:40:10,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:40:10,069 INFO L93 Difference]: Finished difference Result 1222 states and 1445 transitions. [2020-07-07 10:40:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:40:10,070 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-07-07 10:40:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:40:10,078 INFO L225 Difference]: With dead ends: 1222 [2020-07-07 10:40:10,079 INFO L226 Difference]: Without dead ends: 607 [2020-07-07 10:40:10,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2020-07-07 10:40:10,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-07-07 10:40:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2020-07-07 10:40:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-07-07 10:40:10,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 700 transitions. [2020-07-07 10:40:10,286 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 700 transitions. Word has length 98 [2020-07-07 10:40:10,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:40:10,286 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 700 transitions. [2020-07-07 10:40:10,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:40:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 700 transitions. [2020-07-07 10:40:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-07 10:40:10,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:40:10,292 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:40:10,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 10:40:10,506 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:40:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:40:10,507 INFO L82 PathProgramCache]: Analyzing trace with hash 451842310, now seen corresponding path program 1 times [2020-07-07 10:40:10,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:40:10,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651734159] [2020-07-07 10:40:10,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:40:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:40:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:40:10,927 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:40:10,928 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:40:10,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 10:40:11,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:40:11 BoogieIcfgContainer [2020-07-07 10:40:11,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:40:11,160 INFO L168 Benchmark]: Toolchain (without parser) took 36259.77 ms. Allocated memory was 146.3 MB in the beginning and 593.5 MB in the end (delta: 447.2 MB). Free memory was 103.2 MB in the beginning and 289.5 MB in the end (delta: -186.3 MB). Peak memory consumption was 260.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:11,162 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:40:11,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.72 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.9 MB in the beginning and 173.9 MB in the end (delta: -70.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:11,167 INFO L168 Benchmark]: Boogie Preprocessor took 88.11 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:11,169 INFO L168 Benchmark]: RCFGBuilder took 1179.60 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 169.5 MB in the beginning and 197.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:11,170 INFO L168 Benchmark]: TraceAbstraction took 34375.83 ms. Allocated memory was 236.5 MB in the beginning and 593.5 MB in the end (delta: 357.0 MB). Free memory was 196.0 MB in the beginning and 289.5 MB in the end (delta: -93.4 MB). Peak memory consumption was 263.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:40:11,176 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 611.72 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.9 MB in the beginning and 173.9 MB in the end (delta: -70.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.11 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.60 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 169.5 MB in the beginning and 197.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34375.83 ms. Allocated memory was 236.5 MB in the beginning and 593.5 MB in the end (delta: 357.0 MB). Free memory was 196.0 MB in the beginning and 289.5 MB in the end (delta: -93.4 MB). Peak memory consumption was 263.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 764]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=160, \old(methaneLevelCritical)=144, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] int retValue_acc ; [L907] 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] [L911] 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] [L912] 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] [L913] 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] [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] 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] [L913] 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] [L913] tmp = valid_product() [L915] 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] [L917] 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] [L918] 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] [L900] 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] [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] 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] [L520] 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] [L522] 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] [L528] tmp = __VERIFIER_nondet_int() [L530] 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] [L532] 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] [L431] COND TRUE waterLevel < 2 [L432] 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] [L532] 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] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\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=0, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp___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, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L565] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L739] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L493] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND FALSE !(waterLevel < 2) [L500] retValue_acc = 0 [L501] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L739] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L739] tmp = isHighWaterSensorDry() [L741] COND FALSE !(\read(tmp)) [L744] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L623] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L627] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L652] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L677] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] retValue_acc = isMethaneLevelCritical() [L683] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L656] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] tmp = isMethaneAlarm() [L658] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L662] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L662] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L627] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L598] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L604] 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=0, pumpRunning=1, systemActive=1, waterLevel=2] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L604] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L520] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L522] 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=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L542] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L443] COND FALSE !(\read(methaneLevelCritical)) [L446] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L542] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L565] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L589] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L591] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L419] COND TRUE waterLevel > 0 [L420] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L591] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L604] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] tmp = isMethaneLevelCritical() [L777] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L779] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L779] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L779] tmp___0 = isPumpRunning() [L781] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L783] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 226 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 34.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 26.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1247 SDtfs, 1668 SDslu, 1763 SDs, 0 SdLazy, 4905 SolverSat, 1042 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 343 SyntacticMatches, 4 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=639occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 631 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 969 NumberOfCodeBlocks, 969 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 824 ConstructedInterpolants, 0 QuantifiedInterpolants, 252063 SizeOfPredicates, 3 NumberOfNonLiveVariables, 772 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 13/15 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...