./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product34_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_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/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 feddb53df5c889a09349b532f3a03633c4161684 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-09 11:57:20,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:57:20,973 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:57:20,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:57:20,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:57:20,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:57:20,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:57:20,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:57:20,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:57:20,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:57:20,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:57:20,983 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:57:20,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:57:20,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:57:20,984 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:57:20,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:57:20,985 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:57:20,986 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:57:20,987 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:57:20,987 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:57:20,988 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:57:20,988 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:57:20,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:57:20,990 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:57:20,990 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:57:20,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:57:20,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:57:20,991 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:57:20,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:57:20,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:57:20,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:57:20,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:57:20,992 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:57:20,992 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:57:20,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:57:20,993 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:57:20,993 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 11:57:21,000 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:57:21,000 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:57:21,000 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 11:57:21,001 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 11:57:21,001 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 11:57:21,002 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:57:21,002 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:57:21,003 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:57:21,003 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:57:21,003 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 11:57:21,004 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:57:21,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 11:57:21,004 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 11:57:21,004 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_e95c08f2-1f2d-4050-83af-345751947f36/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 -> feddb53df5c889a09349b532f3a03633c4161684 [2018-12-09 11:57:21,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:57:21,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:57:21,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:57:21,029 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:57:21,030 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:57:21,030 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product34_false-unreach-call_false-termination.cil.c [2018-12-09 11:57:21,065 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/data/33e6b1be4/902843a3d5594aa4ac5ab4ca83237de5/FLAGbbfe4434b [2018-12-09 11:57:21,501 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:57:21,501 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/sv-benchmarks/c/product-lines/minepump_spec4_product34_false-unreach-call_false-termination.cil.c [2018-12-09 11:57:21,508 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/data/33e6b1be4/902843a3d5594aa4ac5ab4ca83237de5/FLAGbbfe4434b [2018-12-09 11:57:21,516 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/data/33e6b1be4/902843a3d5594aa4ac5ab4ca83237de5 [2018-12-09 11:57:21,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:57:21,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:57:21,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:57:21,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:57:21,522 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:57:21,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,525 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 09.12 11:57:21, skipping insertion in model container [2018-12-09 11:57:21,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:57:21,552 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:57:21,723 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:57:21,765 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:57:21,818 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:57:21,832 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:57:21,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21 WrapperNode [2018-12-09 11:57:21,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:57:21,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:57:21,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:57:21,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:57:21,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:57:21,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:57:21,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:57:21,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:57:21,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... [2018-12-09 11:57:21,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:57:21,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:57:21,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:57:21,874 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:57:21,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/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 [2018-12-09 11:57:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 11:57:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 11:57:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:57:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 11:57:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 11:57:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 11:57:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 11:57:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 11:57:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 11:57:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 11:57:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 11:57:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 11:57:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 11:57:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 11:57:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 11:57:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 11:57:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 11:57:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 11:57:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 11:57:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 11:57:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 11:57:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:57:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:57:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 11:57:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 11:57:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 11:57:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 11:57:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:57:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:57:22,154 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:57:22,154 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 11:57:22,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:57:22 BoogieIcfgContainer [2018-12-09 11:57:22,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:57:22,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:57:22,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:57:22,157 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:57:22,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:57:21" (1/3) ... [2018-12-09 11:57:22,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0c42b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:57:22, skipping insertion in model container [2018-12-09 11:57:22,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:57:21" (2/3) ... [2018-12-09 11:57:22,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0c42b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:57:22, skipping insertion in model container [2018-12-09 11:57:22,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:57:22" (3/3) ... [2018-12-09 11:57:22,159 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34_false-unreach-call_false-termination.cil.c [2018-12-09 11:57:22,165 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:57:22,170 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:57:22,179 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:57:22,198 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:57:22,198 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:57:22,198 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:57:22,198 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:57:22,199 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:57:22,199 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:57:22,199 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:57:22,199 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:57:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2018-12-09 11:57:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 11:57:22,215 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:22,216 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] [2018-12-09 11:57:22,217 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:22,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:22,220 INFO L82 PathProgramCache]: Analyzing trace with hash -786242842, now seen corresponding path program 1 times [2018-12-09 11:57:22,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:22,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:22,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,250 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:57:22,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:57:22,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:57:22,361 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:22,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:57:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:57:22,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:57:22,373 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 2 states. [2018-12-09 11:57:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:22,393 INFO L93 Difference]: Finished difference Result 218 states and 271 transitions. [2018-12-09 11:57:22,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:57:22,394 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 11:57:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:22,400 INFO L225 Difference]: With dead ends: 218 [2018-12-09 11:57:22,400 INFO L226 Difference]: Without dead ends: 109 [2018-12-09 11:57:22,402 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 [2018-12-09 11:57:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-09 11:57:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-12-09 11:57:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-09 11:57:22,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2018-12-09 11:57:22,430 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 46 [2018-12-09 11:57:22,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:22,431 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2018-12-09 11:57:22,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:57:22,431 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2018-12-09 11:57:22,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 11:57:22,432 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:22,432 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] [2018-12-09 11:57:22,433 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:22,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:22,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1922345988, now seen corresponding path program 1 times [2018-12-09 11:57:22,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:22,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:22,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:57:22,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:57:22,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 11:57:22,486 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:22,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 11:57:22,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 11:57:22,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 11:57:22,488 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2018-12-09 11:57:22,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:22,502 INFO L93 Difference]: Finished difference Result 163 states and 189 transitions. [2018-12-09 11:57:22,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 11:57:22,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 11:57:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:22,503 INFO L225 Difference]: With dead ends: 163 [2018-12-09 11:57:22,504 INFO L226 Difference]: Without dead ends: 100 [2018-12-09 11:57:22,504 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 [2018-12-09 11:57:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-09 11:57:22,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-12-09 11:57:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-09 11:57:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2018-12-09 11:57:22,512 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 47 [2018-12-09 11:57:22,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:22,512 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2018-12-09 11:57:22,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 11:57:22,512 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2018-12-09 11:57:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 11:57:22,513 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:22,513 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] [2018-12-09 11:57:22,513 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:22,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:22,513 INFO L82 PathProgramCache]: Analyzing trace with hash -869774431, now seen corresponding path program 1 times [2018-12-09 11:57:22,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:22,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:22,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,514 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:57:22,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:57:22,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 11:57:22,587 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:22,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 11:57:22,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 11:57:22,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:57:22,588 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 7 states. [2018-12-09 11:57:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:22,708 INFO L93 Difference]: Finished difference Result 176 states and 207 transitions. [2018-12-09 11:57:22,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 11:57:22,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 11:57:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:22,709 INFO L225 Difference]: With dead ends: 176 [2018-12-09 11:57:22,709 INFO L226 Difference]: Without dead ends: 100 [2018-12-09 11:57:22,710 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 [2018-12-09 11:57:22,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-09 11:57:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-12-09 11:57:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-09 11:57:22,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2018-12-09 11:57:22,716 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 52 [2018-12-09 11:57:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:22,717 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2018-12-09 11:57:22,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 11:57:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2018-12-09 11:57:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-09 11:57:22,718 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:22,718 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] [2018-12-09 11:57:22,718 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:22,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:22,718 INFO L82 PathProgramCache]: Analyzing trace with hash 930294654, now seen corresponding path program 1 times [2018-12-09 11:57:22,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:22,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:22,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:22,719 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:57:22,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:57:22,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 11:57:22,776 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:22,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 11:57:22,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 11:57:22,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 11:57:22,777 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 5 states. [2018-12-09 11:57:22,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:22,976 INFO L93 Difference]: Finished difference Result 264 states and 317 transitions. [2018-12-09 11:57:22,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 11:57:22,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2018-12-09 11:57:22,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:22,978 INFO L225 Difference]: With dead ends: 264 [2018-12-09 11:57:22,979 INFO L226 Difference]: Without dead ends: 188 [2018-12-09 11:57:22,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:57:22,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-12-09 11:57:22,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 169. [2018-12-09 11:57:22,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-12-09 11:57:22,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 193 transitions. [2018-12-09 11:57:22,997 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 193 transitions. Word has length 60 [2018-12-09 11:57:22,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:22,998 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 193 transitions. [2018-12-09 11:57:22,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 11:57:22,998 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 193 transitions. [2018-12-09 11:57:22,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-09 11:57:23,000 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:23,000 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:57:23,000 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:23,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:23,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1011248614, now seen corresponding path program 1 times [2018-12-09 11:57:23,000 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:23,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:23,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:23,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:23,002 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:57:23,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:57:23,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 11:57:23,106 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:23,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 11:57:23,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 11:57:23,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 11:57:23,107 INFO L87 Difference]: Start difference. First operand 169 states and 193 transitions. Second operand 10 states. [2018-12-09 11:57:23,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:23,369 INFO L93 Difference]: Finished difference Result 541 states and 676 transitions. [2018-12-09 11:57:23,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 11:57:23,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 74 [2018-12-09 11:57:23,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:23,372 INFO L225 Difference]: With dead ends: 541 [2018-12-09 11:57:23,372 INFO L226 Difference]: Without dead ends: 396 [2018-12-09 11:57:23,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 11:57:23,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2018-12-09 11:57:23,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 386. [2018-12-09 11:57:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2018-12-09 11:57:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 456 transitions. [2018-12-09 11:57:23,394 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 456 transitions. Word has length 74 [2018-12-09 11:57:23,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:23,394 INFO L480 AbstractCegarLoop]: Abstraction has 386 states and 456 transitions. [2018-12-09 11:57:23,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 11:57:23,394 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 456 transitions. [2018-12-09 11:57:23,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-12-09 11:57:23,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:23,396 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 11:57:23,397 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:23,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:23,397 INFO L82 PathProgramCache]: Analyzing trace with hash -541253870, now seen corresponding path program 1 times [2018-12-09 11:57:23,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:23,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:23,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:23,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:23,398 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 11:57:23,437 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:57:23,437 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:57:23,438 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 112 with the following transitions: [2018-12-09 11:57:23,439 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [48], [51], [53], [56], [63], [66], [67], [68], [77], [81], [85], [91], [93], [99], [101], [107], [112], [120], [121], [122], [123], [124], [126], [129], [133], [134], [135], [136], [146], [149], [153], [159], [188], [192], [193], [206], [209], [210], [211], [212], [213], [215], [216], [217], [218], [219], [220], [221], [222], [223], [225], [227], [228], [229], [230], [233], [234], [241], [242], [245], [246], [247], [248], [249], [250], [251], [252], [257], [258], [259] [2018-12-09 11:57:23,462 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:57:23,462 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:57:23,678 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 11:57:23,679 INFO L272 AbstractInterpreter]: Visited 55 different actions 55 times. Never merged. Never widened. Performed 1829 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1829 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 11:57:23,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:23,684 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 11:57:23,863 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 97.27% of their original sizes. [2018-12-09 11:57:23,863 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 11:57:23,940 INFO L418 sIntCurrentIteration]: We unified 110 AI predicates to 110 [2018-12-09 11:57:23,940 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 11:57:23,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 11:57:23,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-12-09 11:57:23,941 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:23,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 11:57:23,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 11:57:23,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-12-09 11:57:23,942 INFO L87 Difference]: Start difference. First operand 386 states and 456 transitions. Second operand 16 states. [2018-12-09 11:57:25,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:25,228 INFO L93 Difference]: Finished difference Result 707 states and 841 transitions. [2018-12-09 11:57:25,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 11:57:25,228 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 111 [2018-12-09 11:57:25,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:25,230 INFO L225 Difference]: With dead ends: 707 [2018-12-09 11:57:25,230 INFO L226 Difference]: Without dead ends: 345 [2018-12-09 11:57:25,231 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 117 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2018-12-09 11:57:25,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2018-12-09 11:57:25,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2018-12-09 11:57:25,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-12-09 11:57:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 402 transitions. [2018-12-09 11:57:25,245 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 402 transitions. Word has length 111 [2018-12-09 11:57:25,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:25,246 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 402 transitions. [2018-12-09 11:57:25,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 11:57:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 402 transitions. [2018-12-09 11:57:25,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-12-09 11:57:25,247 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:25,247 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 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] [2018-12-09 11:57:25,248 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:25,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:25,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1842480686, now seen corresponding path program 1 times [2018-12-09 11:57:25,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:25,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:25,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:25,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:25,249 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 11:57:25,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:57:25,301 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:57:25,301 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 120 with the following transitions: [2018-12-09 11:57:25,301 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [48], [51], [53], [56], [63], [66], [67], [68], [77], [81], [85], [88], [93], [99], [101], [107], [112], [120], [121], [122], [123], [124], [126], [129], [133], [134], [135], [136], [146], [149], [153], [159], [188], [192], [193], [201], [205], [206], [209], [210], [211], [212], [213], [215], [216], [217], [218], [219], [220], [221], [222], [223], [225], [227], [228], [229], [230], [233], [234], [235], [236], [241], [242], [245], [246], [247], [248], [249], [250], [251], [252], [257], [258], [259] [2018-12-09 11:57:25,303 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:57:25,303 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:57:25,371 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 11:57:25,371 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 1931 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1931 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 11:57:25,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:25,376 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 11:57:25,480 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 97.25% of their original sizes. [2018-12-09 11:57:25,480 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 11:57:25,518 INFO L418 sIntCurrentIteration]: We unified 118 AI predicates to 118 [2018-12-09 11:57:25,518 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 11:57:25,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 11:57:25,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-09 11:57:25,519 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:25,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 11:57:25,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 11:57:25,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-09 11:57:25,520 INFO L87 Difference]: Start difference. First operand 345 states and 402 transitions. Second operand 11 states. [2018-12-09 11:57:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:26,539 INFO L93 Difference]: Finished difference Result 724 states and 877 transitions. [2018-12-09 11:57:26,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 11:57:26,539 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 119 [2018-12-09 11:57:26,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:26,541 INFO L225 Difference]: With dead ends: 724 [2018-12-09 11:57:26,541 INFO L226 Difference]: Without dead ends: 459 [2018-12-09 11:57:26,542 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-09 11:57:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2018-12-09 11:57:26,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 446. [2018-12-09 11:57:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2018-12-09 11:57:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 520 transitions. [2018-12-09 11:57:26,563 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 520 transitions. Word has length 119 [2018-12-09 11:57:26,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:26,563 INFO L480 AbstractCegarLoop]: Abstraction has 446 states and 520 transitions. [2018-12-09 11:57:26,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 11:57:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 520 transitions. [2018-12-09 11:57:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-09 11:57:26,565 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:26,565 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 11:57:26,565 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:26,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:26,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1935032119, now seen corresponding path program 1 times [2018-12-09 11:57:26,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:26,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:26,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:26,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:26,566 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 11:57:26,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:57:26,621 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:57:26,621 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-12-09 11:57:26,621 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [46], [47], [48], [51], [53], [56], [63], [66], [67], [68], [77], [81], [85], [88], [91], [93], [99], [101], [107], [112], [120], [121], [122], [123], [124], [126], [129], [133], [134], [135], [136], [146], [149], [153], [159], [188], [192], [193], [201], [205], [206], [209], [210], [211], [212], [213], [215], [216], [217], [218], [219], [220], [221], [222], [223], [225], [227], [228], [229], [230], [233], [234], [235], [236], [241], [242], [245], [246], [247], [248], [249], [250], [251], [252], [257], [258], [259] [2018-12-09 11:57:26,624 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:57:26,624 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:57:26,775 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 11:57:26,775 INFO L272 AbstractInterpreter]: Visited 55 different actions 73 times. Merged at 6 different actions 6 times. Never widened. Performed 4006 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4006 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 11:57:26,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:26,777 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 11:57:26,891 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 97.25% of their original sizes. [2018-12-09 11:57:26,891 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 11:57:26,965 INFO L418 sIntCurrentIteration]: We unified 114 AI predicates to 114 [2018-12-09 11:57:26,965 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 11:57:26,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 11:57:26,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-09 11:57:26,966 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:57:26,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 11:57:26,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 11:57:26,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-12-09 11:57:26,966 INFO L87 Difference]: Start difference. First operand 446 states and 520 transitions. Second operand 15 states. [2018-12-09 11:57:28,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:28,210 INFO L93 Difference]: Finished difference Result 834 states and 1001 transitions. [2018-12-09 11:57:28,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 11:57:28,210 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 115 [2018-12-09 11:57:28,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:28,211 INFO L225 Difference]: With dead ends: 834 [2018-12-09 11:57:28,211 INFO L226 Difference]: Without dead ends: 468 [2018-12-09 11:57:28,212 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 118 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-12-09 11:57:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2018-12-09 11:57:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 446. [2018-12-09 11:57:28,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2018-12-09 11:57:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 519 transitions. [2018-12-09 11:57:28,230 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 519 transitions. Word has length 115 [2018-12-09 11:57:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:28,230 INFO L480 AbstractCegarLoop]: Abstraction has 446 states and 519 transitions. [2018-12-09 11:57:28,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 11:57:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 519 transitions. [2018-12-09 11:57:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-09 11:57:28,231 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:28,231 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 11:57:28,231 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:28,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1880639221, now seen corresponding path program 1 times [2018-12-09 11:57:28,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:28,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:28,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:28,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:28,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 11:57:28,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:57:28,336 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:57:28,336 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-12-09 11:57:28,336 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [46], [47], [48], [51], [53], [56], [63], [66], [67], [68], [77], [81], [85], [88], [91], [93], [99], [101], [107], [112], [120], [121], [122], [123], [124], [126], [131], [133], [134], [135], [136], [146], [149], [153], [159], [188], [192], [193], [201], [205], [206], [209], [210], [211], [212], [213], [215], [216], [217], [218], [219], [220], [221], [222], [223], [225], [227], [228], [229], [230], [233], [234], [235], [236], [241], [242], [245], [246], [247], [248], [249], [250], [251], [252], [257], [258], [259] [2018-12-09 11:57:28,338 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:57:28,338 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:57:28,783 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 11:57:28,783 INFO L272 AbstractInterpreter]: Visited 94 different actions 379 times. Merged at 16 different actions 46 times. Never widened. Performed 13368 root evaluator evaluations with a maximum evaluation depth of 3. Performed 13368 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 11:57:28,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:28,786 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 11:57:28,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:57:28,786 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/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 [2018-12-09 11:57:28,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:28,793 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 11:57:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:57:28,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:57:28,933 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:57:28,934 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 11:57:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 11:57:29,091 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 11:57:29,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 11:57:29,091 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 11:57:29,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 11:57:29,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 11:57:29,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 11:57:29,092 INFO L87 Difference]: Start difference. First operand 446 states and 519 transitions. Second operand 15 states. [2018-12-09 11:57:29,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:57:29,700 INFO L93 Difference]: Finished difference Result 940 states and 1233 transitions. [2018-12-09 11:57:29,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 11:57:29,701 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 115 [2018-12-09 11:57:29,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:57:29,703 INFO L225 Difference]: With dead ends: 940 [2018-12-09 11:57:29,703 INFO L226 Difference]: Without dead ends: 675 [2018-12-09 11:57:29,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 222 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 11:57:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2018-12-09 11:57:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 558. [2018-12-09 11:57:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2018-12-09 11:57:29,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 659 transitions. [2018-12-09 11:57:29,726 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 659 transitions. Word has length 115 [2018-12-09 11:57:29,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:57:29,727 INFO L480 AbstractCegarLoop]: Abstraction has 558 states and 659 transitions. [2018-12-09 11:57:29,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 11:57:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 659 transitions. [2018-12-09 11:57:29,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-09 11:57:29,728 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:57:29,729 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:57:29,729 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:57:29,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:57:29,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1144058278, now seen corresponding path program 2 times [2018-12-09 11:57:29,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:57:29,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:29,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:57:29,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:57:29,730 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:57:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:57:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:57:29,832 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 11:57:29,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:57:29 BoogieIcfgContainer [2018-12-09 11:57:29,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:57:29,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:57:29,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:57:29,919 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:57:29,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:57:22" (3/4) ... [2018-12-09 11:57:29,921 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 11:57:30,012 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e95c08f2-1f2d-4050-83af-345751947f36/bin-2019/utaipan/witness.graphml [2018-12-09 11:57:30,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:57:30,013 INFO L168 Benchmark]: Toolchain (without parser) took 8494.92 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 490.7 MB). Free memory was 948.1 MB in the beginning and 1.2 GB in the end (delta: -222.9 MB). Peak memory consumption was 267.8 MB. Max. memory is 11.5 GB. [2018-12-09 11:57:30,014 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-12-09 11:57:30,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2018-12-09 11:57:30,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:57:30,015 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:57:30,015 INFO L168 Benchmark]: RCFGBuilder took 281.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2018-12-09 11:57:30,015 INFO L168 Benchmark]: TraceAbstraction took 7763.67 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 385.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -175.7 MB). Peak memory consumption was 210.2 MB. Max. memory is 11.5 GB. [2018-12-09 11:57:30,015 INFO L168 Benchmark]: Witness Printer took 93.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2018-12-09 11:57:30,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 314.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 281.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7763.67 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 385.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -175.7 MB). Peak memory consumption was 210.2 MB. Max. memory is 11.5 GB. * Witness Printer took 93.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L282] int pumpRunning = 0; [L283] int systemActive = 1; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L150] int retValue_acc ; [L151] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L156] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L199] int retValue_acc ; [L202] retValue_acc = 1 [L203] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L157] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L161] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L162] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L141] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L210] int splverifierCounter ; [L211] int tmp ; [L212] int tmp___0 ; [L213] int tmp___1 ; [L214] int tmp___2 ; [L217] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L219] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L221] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L227] tmp = __VERIFIER_nondet_int() [L229] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L231] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L460] COND TRUE waterLevel < 2 [L461] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L231] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L264] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L298] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L318] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L421] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L522] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] COND FALSE !(waterLevel < 2) [L529] retValue_acc = 0 [L530] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L421] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L323] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] tmp = isHighWaterLevel() [L325] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L327] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L327] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L298] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L304] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L304] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L264] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L219] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L221] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L264] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L289] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L291] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L291] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L296] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L318] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L321] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L336] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L304] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L304] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L264] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L219] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L221] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L264] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L289] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L291] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L291] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L296] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L298] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L318] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L321] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L336] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L298] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L304] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L540] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 122 locations, 1 error locations. UNSAFE Result, 7.7s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 4.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1208 SDtfs, 1296 SDslu, 3907 SDs, 0 SdLazy, 2241 SolverSat, 509 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 664 GetRequests, 551 SyntacticMatches, 6 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=558occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.997761537844977 AbsIntWeakeningRatio, 0.9649122807017544 AbsIntAvgWeakeningVarsNumRemoved, 54.953216374269005 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 181 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1005 NumberOfCodeBlocks, 1005 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 958 ConstructedInterpolants, 0 QuantifiedInterpolants, 149247 SizeOfPredicates, 8 NumberOfNonLiveVariables, 785 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 132/154 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...