/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:00:19,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:00:19,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:00:19,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:00:19,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:00:19,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:00:19,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:00:19,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:00:19,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:00:19,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:00:19,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:00:19,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:00:19,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:00:19,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:00:19,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:00:19,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:00:19,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:00:19,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:00:19,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:00:19,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:00:19,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:00:19,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:00:19,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:00:19,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:00:19,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:00:19,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:00:19,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:00:19,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:00:19,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:00:19,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:00:19,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:00:19,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:00:19,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:00:19,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:00:19,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:00:19,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:00:19,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:00:19,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:00:19,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:00:19,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:00:19,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:00:19,677 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 [2020-07-19 21:00:19,691 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:00:19,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:00:19,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:00:19,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:00:19,693 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:00:19,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:00:19,693 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:00:19,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:00:19,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:00:19,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:00:19,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:00:19,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:00:19,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:00:19,695 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:00:19,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:00:19,695 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:00:19,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:00:19,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:00:19,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:00:19,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:00:19,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:00:19,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:00:19,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:00:19,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:00:19,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:00:19,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:00:19,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:00:19,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:00:19,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:00:19,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:00:19,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:00:19,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:00:20,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:00:20,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:00:20,005 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:00:20,006 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-07-19 21:00:20,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40197957d/70df3ebac51c4edd999f46b0be1b98bb/FLAG6d53e7593 [2020-07-19 21:00:20,582 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:00:20,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-07-19 21:00:20,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40197957d/70df3ebac51c4edd999f46b0be1b98bb/FLAG6d53e7593 [2020-07-19 21:00:20,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40197957d/70df3ebac51c4edd999f46b0be1b98bb [2020-07-19 21:00:20,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:00:20,936 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:00:20,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:00:20,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:00:20,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:00:20,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:00:20" (1/1) ... [2020-07-19 21:00:20,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab5f492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:20, skipping insertion in model container [2020-07-19 21:00:20,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:00:20" (1/1) ... [2020-07-19 21:00:20,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:00:21,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:00:21,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:00:21,477 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:00:21,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:00:21,644 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:00:21,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21 WrapperNode [2020-07-19 21:00:21,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:00:21,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:00:21,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:00:21,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:00:21,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (1/1) ... [2020-07-19 21:00:21,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (1/1) ... [2020-07-19 21:00:21,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (1/1) ... [2020-07-19 21:00:21,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (1/1) ... [2020-07-19 21:00:21,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (1/1) ... [2020-07-19 21:00:21,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (1/1) ... [2020-07-19 21:00:21,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (1/1) ... [2020-07-19 21:00:21,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:00:21,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:00:21,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:00:21,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:00:21,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (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 [2020-07-19 21:00:21,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:00:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:00:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 21:00:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 21:00:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 21:00:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 21:00:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 21:00:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 21:00:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 21:00:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 21:00:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 21:00:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 21:00:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 21:00:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 21:00:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 21:00:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 21:00:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 21:00:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 21:00:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 21:00:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 21:00:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 21:00:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 21:00:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 21:00:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 21:00:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 21:00:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 21:00:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 21:00:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 21:00:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 21:00:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 21:00:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 21:00:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 21:00:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 21:00:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:00:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 21:00:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 21:00:21,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 21:00:21,819 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 21:00:21,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 21:00:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:00:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:00:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 21:00:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 21:00:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 21:00:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 21:00:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 21:00:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 21:00:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 21:00:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 21:00:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:00:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 21:00:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 21:00:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:00:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 21:00:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 21:00:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:00:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 21:00:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 21:00:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 21:00:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 21:00:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 21:00:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 21:00:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 21:00:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 21:00:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 21:00:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 21:00:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 21:00:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 21:00:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 21:00:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 21:00:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 21:00:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 21:00:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 21:00:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 21:00:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 21:00:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 21:00:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 21:00:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 21:00:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 21:00:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 21:00:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 21:00:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 21:00:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 21:00:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 21:00:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 21:00:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 21:00:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 21:00:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:00:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 21:00:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:00:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 21:00:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:00:23,079 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:00:23,079 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 21:00:23,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:00:23 BoogieIcfgContainer [2020-07-19 21:00:23,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:00:23,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:00:23,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:00:23,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:00:23,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:00:20" (1/3) ... [2020-07-19 21:00:23,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cb58e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:00:23, skipping insertion in model container [2020-07-19 21:00:23,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:21" (2/3) ... [2020-07-19 21:00:23,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cb58e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:00:23, skipping insertion in model container [2020-07-19 21:00:23,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:00:23" (3/3) ... [2020-07-19 21:00:23,093 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2020-07-19 21:00:23,104 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:00:23,113 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:00:23,128 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:00:23,155 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:00:23,155 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:00:23,155 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:00:23,155 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:00:23,156 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:00:23,156 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:00:23,156 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:00:23,156 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:00:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-07-19 21:00:23,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 21:00:23,193 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:23,194 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] [2020-07-19 21:00:23,194 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:23,201 INFO L82 PathProgramCache]: Analyzing trace with hash -16432852, now seen corresponding path program 1 times [2020-07-19 21:00:23,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:23,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923002686] [2020-07-19 21:00:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f15c82c [2020-07-19 21:00:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,872 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:23,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923002686] [2020-07-19 21:00:23,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:23,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:00:23,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013279264] [2020-07-19 21:00:23,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:00:23,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:23,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:00:23,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:00:24,000 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-07-19 21:00:25,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:25,137 INFO L93 Difference]: Finished difference Result 290 states and 378 transitions. [2020-07-19 21:00:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:00:25,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 21:00:25,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:25,158 INFO L225 Difference]: With dead ends: 290 [2020-07-19 21:00:25,158 INFO L226 Difference]: Without dead ends: 157 [2020-07-19 21:00:25,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:00:25,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-07-19 21:00:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 124. [2020-07-19 21:00:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-19 21:00:25,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2020-07-19 21:00:25,260 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52 [2020-07-19 21:00:25,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:25,261 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2020-07-19 21:00:25,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:00:25,261 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2020-07-19 21:00:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 21:00:25,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:25,268 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] [2020-07-19 21:00:25,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:00:25,268 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:25,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:25,269 INFO L82 PathProgramCache]: Analyzing trace with hash -687450637, now seen corresponding path program 1 times [2020-07-19 21:00:25,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:25,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129449537] [2020-07-19 21:00:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f15c82c [2020-07-19 21:00:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,727 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:25,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129449537] [2020-07-19 21:00:25,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:25,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:00:25,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729916017] [2020-07-19 21:00:25,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 21:00:25,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:25,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 21:00:25,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 21:00:25,776 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 4 states. [2020-07-19 21:00:26,223 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:00:26,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:26,972 INFO L93 Difference]: Finished difference Result 210 states and 255 transitions. [2020-07-19 21:00:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:00:26,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 21:00:26,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:26,976 INFO L225 Difference]: With dead ends: 210 [2020-07-19 21:00:26,976 INFO L226 Difference]: Without dead ends: 141 [2020-07-19 21:00:26,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:00:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-19 21:00:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2020-07-19 21:00:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-19 21:00:27,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 132 transitions. [2020-07-19 21:00:27,021 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 132 transitions. Word has length 53 [2020-07-19 21:00:27,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:27,023 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 132 transitions. [2020-07-19 21:00:27,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 21:00:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 132 transitions. [2020-07-19 21:00:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 21:00:27,033 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:27,033 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] [2020-07-19 21:00:27,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:00:27,033 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:27,034 INFO L82 PathProgramCache]: Analyzing trace with hash 585649573, now seen corresponding path program 1 times [2020-07-19 21:00:27,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:27,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702670717] [2020-07-19 21:00:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f15c82c [2020-07-19 21:00:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,419 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:27,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702670717] [2020-07-19 21:00:27,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:27,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:00:27,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584130290] [2020-07-19 21:00:27,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:00:27,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:27,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:00:27,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:00:27,500 INFO L87 Difference]: Start difference. First operand 115 states and 132 transitions. Second operand 8 states. [2020-07-19 21:00:27,925 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:28,242 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:28,512 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:28,744 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:29,487 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:00:31,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:31,092 INFO L93 Difference]: Finished difference Result 402 states and 494 transitions. [2020-07-19 21:00:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 21:00:31,093 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-19 21:00:31,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:31,098 INFO L225 Difference]: With dead ends: 402 [2020-07-19 21:00:31,098 INFO L226 Difference]: Without dead ends: 311 [2020-07-19 21:00:31,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:00:31,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-07-19 21:00:31,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 238. [2020-07-19 21:00:31,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-07-19 21:00:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2020-07-19 21:00:31,174 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 58 [2020-07-19 21:00:31,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:31,174 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2020-07-19 21:00:31,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:00:31,174 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2020-07-19 21:00:31,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-19 21:00:31,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:31,176 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] [2020-07-19 21:00:31,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:00:31,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:31,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:31,177 INFO L82 PathProgramCache]: Analyzing trace with hash -107584034, now seen corresponding path program 1 times [2020-07-19 21:00:31,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:31,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219304506] [2020-07-19 21:00:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f15c82c [2020-07-19 21:00:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,507 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:31,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:31,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219304506] [2020-07-19 21:00:31,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:31,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:00:31,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237641751] [2020-07-19 21:00:31,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:00:31,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:31,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:00:31,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:00:31,586 INFO L87 Difference]: Start difference. First operand 238 states and 283 transitions. Second operand 8 states. [2020-07-19 21:00:32,059 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:33,343 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:33,634 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:33,881 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:34,128 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:34,758 INFO L93 Difference]: Finished difference Result 729 states and 953 transitions. [2020-07-19 21:00:34,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:00:34,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-19 21:00:34,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:34,764 INFO L225 Difference]: With dead ends: 729 [2020-07-19 21:00:34,765 INFO L226 Difference]: Without dead ends: 515 [2020-07-19 21:00:34,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:00:34,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-07-19 21:00:34,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 449. [2020-07-19 21:00:34,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-07-19 21:00:34,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 545 transitions. [2020-07-19 21:00:34,875 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 545 transitions. Word has length 63 [2020-07-19 21:00:34,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:34,876 INFO L479 AbstractCegarLoop]: Abstraction has 449 states and 545 transitions. [2020-07-19 21:00:34,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:00:34,876 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 545 transitions. [2020-07-19 21:00:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 21:00:34,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:34,879 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] [2020-07-19 21:00:34,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:00:34,879 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:34,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:34,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1291077628, now seen corresponding path program 1 times [2020-07-19 21:00:34,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:34,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127413537] [2020-07-19 21:00:34,881 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f15c82c [2020-07-19 21:00:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,122 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:35,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127413537] [2020-07-19 21:00:35,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:35,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 21:00:35,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326670709] [2020-07-19 21:00:35,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:00:35,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:35,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:00:35,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:00:35,218 INFO L87 Difference]: Start difference. First operand 449 states and 545 transitions. Second operand 6 states. [2020-07-19 21:00:35,640 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:37,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:37,337 INFO L93 Difference]: Finished difference Result 1117 states and 1430 transitions. [2020-07-19 21:00:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:00:37,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-19 21:00:37,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:37,344 INFO L225 Difference]: With dead ends: 1117 [2020-07-19 21:00:37,345 INFO L226 Difference]: Without dead ends: 692 [2020-07-19 21:00:37,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:00:37,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-07-19 21:00:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 639. [2020-07-19 21:00:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-07-19 21:00:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 776 transitions. [2020-07-19 21:00:37,488 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 776 transitions. Word has length 67 [2020-07-19 21:00:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:37,488 INFO L479 AbstractCegarLoop]: Abstraction has 639 states and 776 transitions. [2020-07-19 21:00:37,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:00:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 776 transitions. [2020-07-19 21:00:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 21:00:37,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:37,490 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] [2020-07-19 21:00:37,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 21:00:37,491 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:37,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:37,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1290048412, now seen corresponding path program 1 times [2020-07-19 21:00:37,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:37,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645644981] [2020-07-19 21:00:37,492 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f15c82c [2020-07-19 21:00:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:00:37,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:00:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:00:37,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:00:37,658 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:00:37,659 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:00:37,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 21:00:37,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:00:37 BoogieIcfgContainer [2020-07-19 21:00:37,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:00:37,811 INFO L168 Benchmark]: Toolchain (without parser) took 16875.60 ms. Allocated memory was 145.8 MB in the beginning and 491.3 MB in the end (delta: 345.5 MB). Free memory was 100.9 MB in the beginning and 295.5 MB in the end (delta: -194.6 MB). Peak memory consumption was 150.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:37,813 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 21:00:37,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.94 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.5 MB in the beginning and 170.7 MB in the end (delta: -70.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:37,815 INFO L168 Benchmark]: Boogie Preprocessor took 88.61 ms. Allocated memory is still 202.9 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:37,816 INFO L168 Benchmark]: RCFGBuilder took 1350.18 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 194.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:37,818 INFO L168 Benchmark]: TraceAbstraction took 14723.18 ms. Allocated memory was 235.9 MB in the beginning and 491.3 MB in the end (delta: 255.3 MB). Free memory was 194.1 MB in the beginning and 295.5 MB in the end (delta: -101.4 MB). Peak memory consumption was 153.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:37,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.94 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.5 MB in the beginning and 170.7 MB in the end (delta: -70.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.61 ms. Allocated memory is still 202.9 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1350.18 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 194.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14723.18 ms. Allocated memory was 235.9 MB in the beginning and 491.3 MB in the end (delta: 255.3 MB). Free memory was 194.1 MB in the beginning and 295.5 MB in the end (delta: -101.4 MB). Peak memory consumption was 153.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] int retValue_acc ; [L846] 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] [L850] 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] [L851] 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] [L852] 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] [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] 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] [L852] 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] [L852] tmp = valid_product() [L854] 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] [L856] 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] [L857] 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] [L836] 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] [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] 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] [L615] 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] [L617] 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] [L623] tmp = __VERIFIER_nondet_int() [L625] 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] [L627] 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] [L693] COND TRUE waterLevel < 2 [L694] 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] [L627] 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] [L633] tmp___0 = __VERIFIER_nondet_int() [L635] 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] [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] 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] [L655] CALL stopSystem() 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] [L582] COND FALSE !(\read(pumpRunning)) 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] [L589] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L655] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L662] 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=0, waterLevel=2] [L434] 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=0, waterLevel=2] [L441] COND FALSE !(\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=0, waterLevel=2] [L449] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L910] 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=0, waterLevel=2] [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] 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=0, waterLevel=2] [L910] 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=0, waterLevel=2] [L910] tmp = isMethaneLevelCritical() [L912] 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=0, tmp=0, waterLevel=2] [L916] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L916] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L916] tmp___0 = getWaterLevel() [L918] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L920] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] 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=0, waterLevel=2] [L920] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L920] tmp___1 = isPumpRunning() [L922] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L926] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 575 SDtfs, 948 SDslu, 418 SDs, 0 SdLazy, 2127 SolverSat, 620 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=639occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 251 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 82716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...