./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3ef47dc64404f2fae365adb4fa9379fd10f9c50 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 20:20:07,813 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:20:07,814 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:20:07,820 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:20:07,821 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:20:07,821 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:20:07,822 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:20:07,823 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:20:07,823 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:20:07,824 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:20:07,824 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:20:07,824 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:20:07,825 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:20:07,825 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:20:07,826 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:20:07,826 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:20:07,827 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:20:07,828 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:20:07,829 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:20:07,829 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:20:07,830 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:20:07,831 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:20:07,832 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:20:07,832 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:20:07,832 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:20:07,833 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:20:07,833 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:20:07,834 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:20:07,834 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:20:07,835 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:20:07,835 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:20:07,835 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:20:07,835 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:20:07,836 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:20:07,836 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:20:07,836 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:20:07,837 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 20:20:07,844 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:20:07,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:20:07,844 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:20:07,845 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 20:20:07,845 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 20:20:07,845 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 20:20:07,845 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 20:20:07,845 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 20:20:07,845 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 20:20:07,845 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 20:20:07,845 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 20:20:07,846 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 20:20:07,846 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 20:20:07,846 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:20:07,846 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:20:07,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:20:07,847 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 20:20:07,848 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:20:07,848 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:20:07,848 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:20:07,848 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 20:20:07,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:20:07,848 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:20:07,848 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:20:07,848 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 20:20:07,848 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 20:20:07,849 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:20:07,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 20:20:07,849 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 20:20:07,849 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ef47dc64404f2fae365adb4fa9379fd10f9c50 [2018-12-02 20:20:07,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:20:07,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:20:07,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:20:07,875 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:20:07,875 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:20:07,876 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product43_false-unreach-call_false-termination.cil.c [2018-12-02 20:20:07,909 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/data/7a2381340/6cc1b310a7814e79b5b76ed6ff4306aa/FLAGcf90976bc [2018-12-02 20:20:08,307 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:20:08,307 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/sv-benchmarks/c/product-lines/minepump_spec2_product43_false-unreach-call_false-termination.cil.c [2018-12-02 20:20:08,313 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/data/7a2381340/6cc1b310a7814e79b5b76ed6ff4306aa/FLAGcf90976bc [2018-12-02 20:20:08,321 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/data/7a2381340/6cc1b310a7814e79b5b76ed6ff4306aa [2018-12-02 20:20:08,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:20:08,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:20:08,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:20:08,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:20:08,326 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:20:08,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08, skipping insertion in model container [2018-12-02 20:20:08,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:20:08,353 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:20:08,497 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:20:08,505 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:20:08,583 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:20:08,600 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:20:08,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08 WrapperNode [2018-12-02 20:20:08,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:20:08,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:20:08,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:20:08,601 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:20:08,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:20:08,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:20:08,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:20:08,626 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:20:08,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... [2018-12-02 20:20:08,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:20:08,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:20:08,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:20:08,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:20:08,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/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 [2018-12-02 20:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 20:20:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 20:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 20:20:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 20:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 20:20:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 20:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 20:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 20:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 20:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 20:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 20:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 20:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 20:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 20:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 20:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 20:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 20:20:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 20:20:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 20:20:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 20:20:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-02 20:20:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 20:20:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 20:20:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 20:20:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 20:20:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 20:20:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:20:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:20:08,962 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:20:08,963 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 20:20:08,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:20:08 BoogieIcfgContainer [2018-12-02 20:20:08,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:20:08,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 20:20:08,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 20:20:08,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 20:20:08,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:20:08" (1/3) ... [2018-12-02 20:20:08,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd05cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:20:08, skipping insertion in model container [2018-12-02 20:20:08,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:08" (2/3) ... [2018-12-02 20:20:08,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd05cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:20:08, skipping insertion in model container [2018-12-02 20:20:08,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:20:08" (3/3) ... [2018-12-02 20:20:08,968 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43_false-unreach-call_false-termination.cil.c [2018-12-02 20:20:08,974 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 20:20:08,979 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 20:20:08,988 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 20:20:09,007 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 20:20:09,007 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 20:20:09,007 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 20:20:09,008 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:20:09,008 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:20:09,008 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 20:20:09,008 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:20:09,008 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 20:20:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2018-12-02 20:20:09,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 20:20:09,025 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:09,025 INFO L402 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] [2018-12-02 20:20:09,027 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:09,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:09,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2080916765, now seen corresponding path program 1 times [2018-12-02 20:20:09,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:09,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:09,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,061 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:20:09,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:09,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 20:20:09,178 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:09,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 20:20:09,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 20:20:09,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:20:09,190 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2018-12-02 20:20:09,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:09,212 INFO L93 Difference]: Finished difference Result 258 states and 319 transitions. [2018-12-02 20:20:09,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 20:20:09,213 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2018-12-02 20:20:09,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:09,220 INFO L225 Difference]: With dead ends: 258 [2018-12-02 20:20:09,220 INFO L226 Difference]: Without dead ends: 131 [2018-12-02 20:20:09,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:20:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-12-02 20:20:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-12-02 20:20:09,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-12-02 20:20:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2018-12-02 20:20:09,254 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 51 [2018-12-02 20:20:09,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:09,254 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2018-12-02 20:20:09,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 20:20:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2018-12-02 20:20:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 20:20:09,256 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:09,256 INFO L402 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] [2018-12-02 20:20:09,256 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:09,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:09,257 INFO L82 PathProgramCache]: Analyzing trace with hash 636669844, now seen corresponding path program 1 times [2018-12-02 20:20:09,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:09,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:09,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,258 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:20:09,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:09,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 20:20:09,312 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:09,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 20:20:09,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 20:20:09,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 20:20:09,313 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 3 states. [2018-12-02 20:20:09,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:09,327 INFO L93 Difference]: Finished difference Result 198 states and 231 transitions. [2018-12-02 20:20:09,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 20:20:09,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-02 20:20:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:09,329 INFO L225 Difference]: With dead ends: 198 [2018-12-02 20:20:09,329 INFO L226 Difference]: Without dead ends: 122 [2018-12-02 20:20:09,329 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 20:20:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-12-02 20:20:09,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-12-02 20:20:09,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-12-02 20:20:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 141 transitions. [2018-12-02 20:20:09,337 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 141 transitions. Word has length 52 [2018-12-02 20:20:09,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:09,337 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 141 transitions. [2018-12-02 20:20:09,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 20:20:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 141 transitions. [2018-12-02 20:20:09,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-02 20:20:09,338 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:09,338 INFO L402 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] [2018-12-02 20:20:09,338 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:09,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:09,338 INFO L82 PathProgramCache]: Analyzing trace with hash -982739446, now seen corresponding path program 1 times [2018-12-02 20:20:09,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:09,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:09,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,339 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:20:09,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:09,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 20:20:09,421 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:09,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:20:09,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:20:09,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:20:09,422 INFO L87 Difference]: Start difference. First operand 122 states and 141 transitions. Second operand 7 states. [2018-12-02 20:20:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:09,675 INFO L93 Difference]: Finished difference Result 361 states and 435 transitions. [2018-12-02 20:20:09,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 20:20:09,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2018-12-02 20:20:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:09,677 INFO L225 Difference]: With dead ends: 361 [2018-12-02 20:20:09,677 INFO L226 Difference]: Without dead ends: 267 [2018-12-02 20:20:09,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:20:09,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-12-02 20:20:09,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 247. [2018-12-02 20:20:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-12-02 20:20:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 296 transitions. [2018-12-02 20:20:09,696 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 296 transitions. Word has length 56 [2018-12-02 20:20:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:09,697 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 296 transitions. [2018-12-02 20:20:09,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:20:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 296 transitions. [2018-12-02 20:20:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-12-02 20:20:09,698 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:09,698 INFO L402 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] [2018-12-02 20:20:09,698 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:09,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:09,699 INFO L82 PathProgramCache]: Analyzing trace with hash -748912949, now seen corresponding path program 1 times [2018-12-02 20:20:09,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:09,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:09,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,699 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:09,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:20:09,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:09,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 20:20:09,773 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:09,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 20:20:09,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 20:20:09,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 20:20:09,774 INFO L87 Difference]: Start difference. First operand 247 states and 296 transitions. Second operand 6 states. [2018-12-02 20:20:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:09,896 INFO L93 Difference]: Finished difference Result 667 states and 822 transitions. [2018-12-02 20:20:09,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:20:09,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-12-02 20:20:09,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:09,899 INFO L225 Difference]: With dead ends: 667 [2018-12-02 20:20:09,900 INFO L226 Difference]: Without dead ends: 448 [2018-12-02 20:20:09,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 20:20:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-12-02 20:20:09,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2018-12-02 20:20:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2018-12-02 20:20:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 532 transitions. [2018-12-02 20:20:09,935 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 532 transitions. Word has length 62 [2018-12-02 20:20:09,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:09,936 INFO L480 AbstractCegarLoop]: Abstraction has 442 states and 532 transitions. [2018-12-02 20:20:09,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 20:20:09,936 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 532 transitions. [2018-12-02 20:20:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-02 20:20:09,938 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:09,938 INFO L402 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] [2018-12-02 20:20:09,938 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:09,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:09,938 INFO L82 PathProgramCache]: Analyzing trace with hash -88762617, now seen corresponding path program 1 times [2018-12-02 20:20:09,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:09,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:09,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:09,939 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:20:10,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:10,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 20:20:10,008 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:10,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:20:10,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:20:10,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:20:10,009 INFO L87 Difference]: Start difference. First operand 442 states and 532 transitions. Second operand 7 states. [2018-12-02 20:20:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:10,365 INFO L93 Difference]: Finished difference Result 1137 states and 1460 transitions. [2018-12-02 20:20:10,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 20:20:10,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2018-12-02 20:20:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:10,367 INFO L225 Difference]: With dead ends: 1137 [2018-12-02 20:20:10,367 INFO L226 Difference]: Without dead ends: 723 [2018-12-02 20:20:10,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 20:20:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2018-12-02 20:20:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 639. [2018-12-02 20:20:10,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2018-12-02 20:20:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 769 transitions. [2018-12-02 20:20:10,394 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 769 transitions. Word has length 66 [2018-12-02 20:20:10,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:10,394 INFO L480 AbstractCegarLoop]: Abstraction has 639 states and 769 transitions. [2018-12-02 20:20:10,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:20:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 769 transitions. [2018-12-02 20:20:10,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 20:20:10,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:10,396 INFO L402 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] [2018-12-02 20:20:10,396 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:10,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:10,396 INFO L82 PathProgramCache]: Analyzing trace with hash 716633639, now seen corresponding path program 1 times [2018-12-02 20:20:10,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:10,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:10,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,397 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 20:20:10,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:10,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 20:20:10,453 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:10,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 20:20:10,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 20:20:10,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 20:20:10,454 INFO L87 Difference]: Start difference. First operand 639 states and 769 transitions. Second operand 6 states. [2018-12-02 20:20:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:10,501 INFO L93 Difference]: Finished difference Result 1278 states and 1582 transitions. [2018-12-02 20:20:10,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 20:20:10,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-12-02 20:20:10,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:10,505 INFO L225 Difference]: With dead ends: 1278 [2018-12-02 20:20:10,505 INFO L226 Difference]: Without dead ends: 667 [2018-12-02 20:20:10,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:20:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2018-12-02 20:20:10,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 659. [2018-12-02 20:20:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2018-12-02 20:20:10,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 789 transitions. [2018-12-02 20:20:10,531 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 789 transitions. Word has length 98 [2018-12-02 20:20:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:10,531 INFO L480 AbstractCegarLoop]: Abstraction has 659 states and 789 transitions. [2018-12-02 20:20:10,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 20:20:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 789 transitions. [2018-12-02 20:20:10,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 20:20:10,533 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:10,533 INFO L402 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] [2018-12-02 20:20:10,533 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:10,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:10,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1332754203, now seen corresponding path program 1 times [2018-12-02 20:20:10,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:10,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:10,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,535 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 20:20:10,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:10,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 20:20:10,594 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:10,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 20:20:10,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 20:20:10,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 20:20:10,594 INFO L87 Difference]: Start difference. First operand 659 states and 789 transitions. Second operand 8 states. [2018-12-02 20:20:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:10,641 INFO L93 Difference]: Finished difference Result 1318 states and 1622 transitions. [2018-12-02 20:20:10,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:20:10,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2018-12-02 20:20:10,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:10,645 INFO L225 Difference]: With dead ends: 1318 [2018-12-02 20:20:10,645 INFO L226 Difference]: Without dead ends: 687 [2018-12-02 20:20:10,647 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 20:20:10,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2018-12-02 20:20:10,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 675. [2018-12-02 20:20:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2018-12-02 20:20:10,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 805 transitions. [2018-12-02 20:20:10,668 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 805 transitions. Word has length 98 [2018-12-02 20:20:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:10,668 INFO L480 AbstractCegarLoop]: Abstraction has 675 states and 805 transitions. [2018-12-02 20:20:10,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 20:20:10,668 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 805 transitions. [2018-12-02 20:20:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 20:20:10,670 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:10,670 INFO L402 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] [2018-12-02 20:20:10,670 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:10,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:10,670 INFO L82 PathProgramCache]: Analyzing trace with hash -363173180, now seen corresponding path program 1 times [2018-12-02 20:20:10,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:10,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:10,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,671 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 20:20:10,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:20:10,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 20:20:10,723 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:10,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 20:20:10,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 20:20:10,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 20:20:10,723 INFO L87 Difference]: Start difference. First operand 675 states and 805 transitions. Second operand 4 states. [2018-12-02 20:20:10,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:10,873 INFO L93 Difference]: Finished difference Result 2137 states and 2676 transitions. [2018-12-02 20:20:10,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 20:20:10,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-12-02 20:20:10,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:10,880 INFO L225 Difference]: With dead ends: 2137 [2018-12-02 20:20:10,880 INFO L226 Difference]: Without dead ends: 1490 [2018-12-02 20:20:10,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 20:20:10,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2018-12-02 20:20:10,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1459. [2018-12-02 20:20:10,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1459 states. [2018-12-02 20:20:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1779 transitions. [2018-12-02 20:20:10,944 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1779 transitions. Word has length 98 [2018-12-02 20:20:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:10,945 INFO L480 AbstractCegarLoop]: Abstraction has 1459 states and 1779 transitions. [2018-12-02 20:20:10,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 20:20:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1779 transitions. [2018-12-02 20:20:10,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 20:20:10,948 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:10,948 INFO L402 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, 1, 1, 1, 1] [2018-12-02 20:20:10,948 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:10,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:10,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1778110846, now seen corresponding path program 1 times [2018-12-02 20:20:10,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:10,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:10,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:10,949 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 20:20:11,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 20:20:11,045 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 20:20:11,046 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2018-12-02 20:20:11,048 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [33], [35], [36], [39], [42], [44], [47], [57], [58], [62], [63], [65], [74], [78], [82], [85], [90], [93], [98], [101], [117], [118], [119], [121], [124], [126], [129], [132], [144], [145], [146], [147], [148], [150], [155], [158], [159], [161], [166], [168], [169], [174], [176], [182], [186], [219], [220], [228], [234], [238], [239], [242], [243], [244], [245], [246], [247], [248], [249], [250], [254], [255], [256], [258], [259], [260], [261], [262], [263], [268], [269], [270], [271], [274], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [292], [293], [294], [300], [301], [302] [2018-12-02 20:20:11,079 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 20:20:11,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 20:20:11,375 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 20:20:11,376 INFO L272 AbstractInterpreter]: Visited 98 different actions 100 times. Never merged. Never widened. Performed 3163 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3163 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 134 variables. [2018-12-02 20:20:11,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:11,380 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 20:20:11,618 INFO L227 lantSequenceWeakener]: Weakened 98 states. On average, predicates are now at 97.03% of their original sizes. [2018-12-02 20:20:11,619 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 20:20:11,761 INFO L418 sIntCurrentIteration]: We unified 101 AI predicates to 101 [2018-12-02 20:20:11,761 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 20:20:11,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 20:20:11,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [13] total 33 [2018-12-02 20:20:11,762 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:11,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-12-02 20:20:11,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-12-02 20:20:11,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-12-02 20:20:11,762 INFO L87 Difference]: Start difference. First operand 1459 states and 1779 transitions. Second operand 22 states. [2018-12-02 20:20:19,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:19,144 INFO L93 Difference]: Finished difference Result 5272 states and 6787 transitions. [2018-12-02 20:20:19,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-02 20:20:19,144 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 102 [2018-12-02 20:20:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:19,152 INFO L225 Difference]: With dead ends: 5272 [2018-12-02 20:20:19,153 INFO L226 Difference]: Without dead ends: 3841 [2018-12-02 20:20:19,155 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 121 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=1474, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 20:20:19,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2018-12-02 20:20:19,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3630. [2018-12-02 20:20:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3630 states. [2018-12-02 20:20:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 4501 transitions. [2018-12-02 20:20:19,253 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 4501 transitions. Word has length 102 [2018-12-02 20:20:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:19,253 INFO L480 AbstractCegarLoop]: Abstraction has 3630 states and 4501 transitions. [2018-12-02 20:20:19,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-12-02 20:20:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 4501 transitions. [2018-12-02 20:20:19,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-12-02 20:20:19,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:19,258 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 20:20:19,258 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:19,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:19,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1443949796, now seen corresponding path program 1 times [2018-12-02 20:20:19,258 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:19,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:19,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:19,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:19,259 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 20:20:19,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 20:20:19,356 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 20:20:19,357 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-12-02 20:20:19,357 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [33], [35], [36], [39], [42], [44], [47], [54], [57], [58], [62], [63], [64], [65], [74], [78], [82], [85], [88], [90], [93], [96], [98], [101], [117], [118], [119], [121], [124], [126], [129], [132], [135], [143], [144], [145], [146], [147], [148], [150], [155], [158], [159], [161], [166], [168], [169], [174], [176], [179], [182], [186], [192], [219], [220], [225], [227], [228], [234], [238], [239], [242], [243], [244], [245], [246], [247], [248], [249], [250], [254], [255], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [294], [295], [300], [301], [302] [2018-12-02 20:20:19,359 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 20:20:19,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 20:20:20,237 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 20:20:20,237 INFO L272 AbstractInterpreter]: Visited 116 different actions 655 times. Merged at 18 different actions 51 times. Never widened. Performed 27122 root evaluator evaluations with a maximum evaluation depth of 3. Performed 27122 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 6 different actions. Largest state had 134 variables. [2018-12-02 20:20:20,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:20,240 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 20:20:20,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 20:20:20,240 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 20:20:20,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:20,247 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 20:20:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:20,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:20:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-02 20:20:20,437 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 20:20:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 20:20:20,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 20:20:20,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 20:20:20,977 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:20:20,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 20:20:20,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 20:20:20,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 20:20:20,977 INFO L87 Difference]: Start difference. First operand 3630 states and 4501 transitions. Second operand 8 states. [2018-12-02 20:20:21,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:21,187 INFO L93 Difference]: Finished difference Result 6388 states and 8015 transitions. [2018-12-02 20:20:21,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:20:21,188 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2018-12-02 20:20:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:21,196 INFO L225 Difference]: With dead ends: 6388 [2018-12-02 20:20:21,196 INFO L226 Difference]: Without dead ends: 3273 [2018-12-02 20:20:21,201 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 271 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 20:20:21,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2018-12-02 20:20:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3253. [2018-12-02 20:20:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3253 states. [2018-12-02 20:20:21,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 3936 transitions. [2018-12-02 20:20:21,298 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 3936 transitions. Word has length 144 [2018-12-02 20:20:21,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:21,298 INFO L480 AbstractCegarLoop]: Abstraction has 3253 states and 3936 transitions. [2018-12-02 20:20:21,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 20:20:21,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 3936 transitions. [2018-12-02 20:20:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-12-02 20:20:21,302 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:21,302 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2018-12-02 20:20:21,302 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:21,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:21,303 INFO L82 PathProgramCache]: Analyzing trace with hash -221553377, now seen corresponding path program 1 times [2018-12-02 20:20:21,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:21,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:21,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:21,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:21,303 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 51 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-02 20:20:21,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 20:20:21,364 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 20:20:21,364 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-12-02 20:20:21,364 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [33], [35], [36], [39], [42], [44], [47], [54], [57], [58], [62], [63], [64], [65], [74], [78], [82], [85], [88], [90], [93], [96], [98], [101], [117], [118], [119], [121], [124], [126], [129], [132], [135], [141], [143], [144], [145], [146], [147], [148], [150], [155], [158], [159], [161], [166], [168], [169], [174], [176], [179], [182], [186], [192], [219], [220], [225], [227], [228], [234], [238], [239], [242], [243], [244], [245], [246], [247], [248], [249], [250], [254], [255], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [294], [295], [300], [301], [302] [2018-12-02 20:20:21,366 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 20:20:21,366 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 20:20:22,414 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 20:20:22,414 INFO L272 AbstractInterpreter]: Visited 117 different actions 943 times. Merged at 21 different actions 113 times. Widened at 1 different actions 1 times. Performed 32828 root evaluator evaluations with a maximum evaluation depth of 3. Performed 32828 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 30 fixpoints after 7 different actions. Largest state had 134 variables. [2018-12-02 20:20:22,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:22,416 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 20:20:22,416 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 20:20:22,416 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 20:20:22,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:22,422 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 20:20:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:22,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:20:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 79 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 20:20:22,528 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 20:20:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 51 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-02 20:20:22,691 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 20:20:22,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 11 [2018-12-02 20:20:22,692 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 20:20:22,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 20:20:22,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 20:20:22,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-02 20:20:22,692 INFO L87 Difference]: Start difference. First operand 3253 states and 3936 transitions. Second operand 8 states. [2018-12-02 20:20:23,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:23,248 INFO L93 Difference]: Finished difference Result 7360 states and 9477 transitions. [2018-12-02 20:20:23,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 20:20:23,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 179 [2018-12-02 20:20:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:23,261 INFO L225 Difference]: With dead ends: 7360 [2018-12-02 20:20:23,261 INFO L226 Difference]: Without dead ends: 4729 [2018-12-02 20:20:23,266 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 356 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-12-02 20:20:23,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2018-12-02 20:20:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4418. [2018-12-02 20:20:23,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4418 states. [2018-12-02 20:20:23,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4418 states to 4418 states and 5393 transitions. [2018-12-02 20:20:23,404 INFO L78 Accepts]: Start accepts. Automaton has 4418 states and 5393 transitions. Word has length 179 [2018-12-02 20:20:23,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:23,404 INFO L480 AbstractCegarLoop]: Abstraction has 4418 states and 5393 transitions. [2018-12-02 20:20:23,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 20:20:23,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4418 states and 5393 transitions. [2018-12-02 20:20:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-12-02 20:20:23,408 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:23,408 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2018-12-02 20:20:23,408 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:23,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:23,408 INFO L82 PathProgramCache]: Analyzing trace with hash 745797277, now seen corresponding path program 1 times [2018-12-02 20:20:23,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:23,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:23,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:23,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:23,409 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:23,478 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 40 proven. 20 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-02 20:20:23,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 20:20:23,478 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 20:20:23,478 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-12-02 20:20:23,479 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [33], [35], [36], [39], [42], [44], [47], [54], [57], [58], [62], [63], [64], [65], [74], [78], [82], [85], [88], [90], [93], [96], [98], [101], [117], [118], [119], [121], [124], [126], [129], [132], [135], [141], [143], [144], [145], [146], [147], [148], [150], [155], [158], [159], [161], [166], [168], [169], [174], [176], [179], [182], [186], [192], [219], [220], [223], [225], [227], [228], [234], [238], [239], [242], [243], [244], [245], [246], [247], [248], [249], [250], [254], [255], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [294], [295], [300], [301], [302] [2018-12-02 20:20:23,481 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 20:20:23,481 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 20:20:24,972 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 20:20:24,973 INFO L272 AbstractInterpreter]: Visited 118 different actions 1333 times. Merged at 24 different actions 160 times. Widened at 1 different actions 1 times. Performed 47752 root evaluator evaluations with a maximum evaluation depth of 3. Performed 47752 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 49 fixpoints after 9 different actions. Largest state had 134 variables. [2018-12-02 20:20:24,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:24,974 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 20:20:24,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 20:20:24,974 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 20:20:24,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:24,980 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 20:20:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:20:25,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:20:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 65 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 20:20:25,070 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 20:20:25,240 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 42 proven. 19 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-02 20:20:25,256 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 20:20:25,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 12 [2018-12-02 20:20:25,256 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 20:20:25,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 20:20:25,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 20:20:25,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-12-02 20:20:25,257 INFO L87 Difference]: Start difference. First operand 4418 states and 5393 transitions. Second operand 9 states. [2018-12-02 20:20:25,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:20:25,896 INFO L93 Difference]: Finished difference Result 10634 states and 13891 transitions. [2018-12-02 20:20:25,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 20:20:25,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 179 [2018-12-02 20:20:25,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:20:25,914 INFO L225 Difference]: With dead ends: 10634 [2018-12-02 20:20:25,915 INFO L226 Difference]: Without dead ends: 6899 [2018-12-02 20:20:25,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 358 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2018-12-02 20:20:25,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6899 states. [2018-12-02 20:20:26,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6899 to 5673. [2018-12-02 20:20:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5673 states. [2018-12-02 20:20:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5673 states to 5673 states and 6961 transitions. [2018-12-02 20:20:26,111 INFO L78 Accepts]: Start accepts. Automaton has 5673 states and 6961 transitions. Word has length 179 [2018-12-02 20:20:26,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:20:26,111 INFO L480 AbstractCegarLoop]: Abstraction has 5673 states and 6961 transitions. [2018-12-02 20:20:26,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 20:20:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5673 states and 6961 transitions. [2018-12-02 20:20:26,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-12-02 20:20:26,116 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:20:26,116 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2018-12-02 20:20:26,116 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:20:26,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:20:26,116 INFO L82 PathProgramCache]: Analyzing trace with hash -640406117, now seen corresponding path program 1 times [2018-12-02 20:20:26,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:20:26,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:26,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:20:26,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:20:26,117 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:20:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:20:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:20:26,240 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 20:20:26,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:20:26 BoogieIcfgContainer [2018-12-02 20:20:26,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 20:20:26,373 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:20:26,373 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:20:26,373 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:20:26,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:20:08" (3/4) ... [2018-12-02 20:20:26,375 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 20:20:26,502 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_00295b5a-44cf-4b73-b349-734039570979/bin-2019/utaipan/witness.graphml [2018-12-02 20:20:26,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:20:26,502 INFO L168 Benchmark]: Toolchain (without parser) took 18179.46 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.1 GB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 907.6 MB. Max. memory is 11.5 GB. [2018-12-02 20:20:26,503 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:20:26,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:20:26,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:20:26,504 INFO L168 Benchmark]: Boogie Preprocessor took 28.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:20:26,504 INFO L168 Benchmark]: RCFGBuilder took 309.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2018-12-02 20:20:26,504 INFO L168 Benchmark]: TraceAbstraction took 17409.51 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 943.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -122.1 MB). Peak memory consumption was 821.6 MB. Max. memory is 11.5 GB. [2018-12-02 20:20:26,504 INFO L168 Benchmark]: Witness Printer took 128.78 ms. Allocated memory is still 2.1 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. [2018-12-02 20:20:26,505 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 309.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17409.51 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 943.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -122.1 MB). Peak memory consumption was 821.6 MB. Max. memory is 11.5 GB. * Witness Printer took 128.78 ms. Allocated memory is still 2.1 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L507] int cleanupTimeShifts = 4; [L648] int methAndRunningLastTime ; [L757] int pumpRunning = 0; [L758] int systemActive = 1; [L588] int retValue_acc ; [L589] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L595] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L595] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L595] tmp = valid_product() [L597] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L599] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L600] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L653] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L579] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L710] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L743] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L771] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L773] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L793] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L796] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] int retValue_acc ; [L909] int tmp ; [L910] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L914] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] tmp = isHighWaterSensorDry() [L916] COND FALSE !(\read(tmp)) [L919] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L921] retValue_acc = tmp___0 [L922] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L798] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] tmp = isHighWaterLevel() [L800] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L802] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L827] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L856] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L856] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L856] retValue_acc = isMethaneLevelCritical() [L858] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L831] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isMethaneAlarm() [L833] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L837] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L821] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L837] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L802] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L773] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L779] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] int tmp ; [L659] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L663] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L681] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L779] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L743] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L698] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L700] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L720] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L720] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L743] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L766] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L771] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L793] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L796] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L811] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L779] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L658] int tmp ; [L659] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L663] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L667] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L667] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L670] COND FALSE !(\read(methAndRunningLastTime)) [L675] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L779] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L743] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L698] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L743] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L766] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L771] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L773] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L793] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L796] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L811] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L773] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L779] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L658] int tmp ; [L659] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L663] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L663] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L667] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L667] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L670] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L672] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L946] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 144 locations, 1 error locations. UNSAFE Result, 17.3s OverallTime, 13 OverallIterations, 4 TraceHistogramMax, 9.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2476 SDtfs, 2233 SDslu, 8158 SDs, 0 SdLazy, 4941 SolverSat, 770 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1244 GetRequests, 1099 SyntacticMatches, 15 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5673occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.7s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9959760549316534 AbsIntWeakeningRatio, 1.0792079207920793 AbsIntAvgWeakeningVarsNumRemoved, 111.96039603960396 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1929 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1866 NumberOfCodeBlocks, 1866 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2171 ConstructedInterpolants, 0 QuantifiedInterpolants, 513526 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2792 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 599/717 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...