./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product37_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_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product37_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/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 a4cdc62a5b5efdfba89a3280823bf73bd08d347a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 21:55:00,921 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 21:55:00,922 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 21:55:00,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 21:55:00,930 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 21:55:00,931 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 21:55:00,931 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 21:55:00,932 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 21:55:00,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 21:55:00,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 21:55:00,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 21:55:00,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 21:55:00,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 21:55:00,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 21:55:00,937 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 21:55:00,937 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 21:55:00,938 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 21:55:00,939 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 21:55:00,941 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 21:55:00,942 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 21:55:00,942 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 21:55:00,943 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 21:55:00,945 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 21:55:00,945 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 21:55:00,945 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 21:55:00,946 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 21:55:00,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 21:55:00,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 21:55:00,948 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 21:55:00,948 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 21:55:00,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 21:55:00,949 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 21:55:00,949 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 21:55:00,949 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 21:55:00,950 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 21:55:00,950 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 21:55:00,950 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 21:55:00,960 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 21:55:00,961 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 21:55:00,961 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 21:55:00,961 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 21:55:00,961 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 21:55:00,961 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 21:55:00,962 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 21:55:00,962 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 21:55:00,962 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 21:55:00,962 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 21:55:00,962 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 21:55:00,962 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 21:55:00,962 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 21:55:00,963 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 21:55:00,963 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 21:55:00,963 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 21:55:00,963 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 21:55:00,963 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 21:55:00,963 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 21:55:00,963 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 21:55:00,963 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 21:55:00,964 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:55:00,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 21:55:00,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 21:55:00,965 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 21:55:00,965 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 21:55:00,965 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 21:55:00,965 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 21:55:00,965 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 21:55:00,965 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_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/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 -> a4cdc62a5b5efdfba89a3280823bf73bd08d347a [2018-12-02 21:55:00,987 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 21:55:00,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 21:55:00,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 21:55:00,998 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 21:55:00,998 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 21:55:00,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product37_false-unreach-call_false-termination.cil.c [2018-12-02 21:55:01,036 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/data/69ab33a8f/7d16601b5bd249348ab82378a989b393/FLAG44030bd39 [2018-12-02 21:55:01,371 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 21:55:01,372 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/sv-benchmarks/c/product-lines/minepump_spec1_product37_false-unreach-call_false-termination.cil.c [2018-12-02 21:55:01,377 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/data/69ab33a8f/7d16601b5bd249348ab82378a989b393/FLAG44030bd39 [2018-12-02 21:55:01,764 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/data/69ab33a8f/7d16601b5bd249348ab82378a989b393 [2018-12-02 21:55:01,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 21:55:01,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 21:55:01,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 21:55:01,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 21:55:01,771 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 21:55:01,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:55:01" (1/1) ... [2018-12-02 21:55:01,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30baa60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:01, skipping insertion in model container [2018-12-02 21:55:01,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:55:01" (1/1) ... [2018-12-02 21:55:01,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 21:55:01,807 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 21:55:01,958 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:55:01,966 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 21:55:02,044 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:55:02,059 INFO L195 MainTranslator]: Completed translation [2018-12-02 21:55:02,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02 WrapperNode [2018-12-02 21:55:02,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 21:55:02,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 21:55:02,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 21:55:02,060 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 21:55:02,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 21:55:02,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 21:55:02,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 21:55:02,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 21:55:02,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... [2018-12-02 21:55:02,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 21:55:02,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 21:55:02,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 21:55:02,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 21:55:02,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:55:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 21:55:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 21:55:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 21:55:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 21:55:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 21:55:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 21:55:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 21:55:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 21:55:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 21:55:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 21:55:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 21:55:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 21:55:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 21:55:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 21:55:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 21:55:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 21:55:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 21:55:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 21:55:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 21:55:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 21:55:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 21:55:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 21:55:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 21:55:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 21:55:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 21:55:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 21:55:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 21:55:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 21:55:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 21:55:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 21:55:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 21:55:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 21:55:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 21:55:02,431 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 21:55:02,431 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 21:55:02,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:55:02 BoogieIcfgContainer [2018-12-02 21:55:02,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 21:55:02,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 21:55:02,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 21:55:02,434 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 21:55:02,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:55:01" (1/3) ... [2018-12-02 21:55:02,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5a5caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:55:02, skipping insertion in model container [2018-12-02 21:55:02,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:55:02" (2/3) ... [2018-12-02 21:55:02,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5a5caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:55:02, skipping insertion in model container [2018-12-02 21:55:02,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:55:02" (3/3) ... [2018-12-02 21:55:02,436 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37_false-unreach-call_false-termination.cil.c [2018-12-02 21:55:02,442 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 21:55:02,446 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 21:55:02,455 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 21:55:02,474 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 21:55:02,474 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 21:55:02,474 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 21:55:02,474 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 21:55:02,474 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 21:55:02,474 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 21:55:02,474 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 21:55:02,474 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 21:55:02,486 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2018-12-02 21:55:02,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 21:55:02,490 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:02,491 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] [2018-12-02 21:55:02,492 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:02,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:02,496 INFO L82 PathProgramCache]: Analyzing trace with hash 930335311, now seen corresponding path program 1 times [2018-12-02 21:55:02,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:02,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:02,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:02,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:02,525 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:02,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:02,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 21:55:02,631 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:02,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 21:55:02,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 21:55:02,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 21:55:02,643 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 2 states. [2018-12-02 21:55:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:02,665 INFO L93 Difference]: Finished difference Result 246 states and 307 transitions. [2018-12-02 21:55:02,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 21:55:02,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 21:55:02,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:02,673 INFO L225 Difference]: With dead ends: 246 [2018-12-02 21:55:02,673 INFO L226 Difference]: Without dead ends: 123 [2018-12-02 21:55:02,675 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 21:55:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-12-02 21:55:02,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-12-02 21:55:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-12-02 21:55:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2018-12-02 21:55:02,705 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2018-12-02 21:55:02,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:02,705 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2018-12-02 21:55:02,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 21:55:02,706 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2018-12-02 21:55:02,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 21:55:02,707 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:02,707 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] [2018-12-02 21:55:02,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:02,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:02,708 INFO L82 PathProgramCache]: Analyzing trace with hash -444765203, now seen corresponding path program 1 times [2018-12-02 21:55:02,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:02,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:02,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:02,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:02,709 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:02,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:02,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 21:55:02,760 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:02,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 21:55:02,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 21:55:02,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 21:55:02,761 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 3 states. [2018-12-02 21:55:02,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:02,772 INFO L93 Difference]: Finished difference Result 195 states and 229 transitions. [2018-12-02 21:55:02,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 21:55:02,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 21:55:02,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:02,774 INFO L225 Difference]: With dead ends: 195 [2018-12-02 21:55:02,774 INFO L226 Difference]: Without dead ends: 114 [2018-12-02 21:55:02,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 21:55:02,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-12-02 21:55:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-12-02 21:55:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-12-02 21:55:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2018-12-02 21:55:02,782 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2018-12-02 21:55:02,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:02,782 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2018-12-02 21:55:02,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 21:55:02,782 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2018-12-02 21:55:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 21:55:02,783 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:02,783 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:55:02,784 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:02,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:02,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1455427203, now seen corresponding path program 1 times [2018-12-02 21:55:02,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:02,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:02,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:02,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:02,785 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:02,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:02,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 21:55:02,860 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:02,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 21:55:02,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 21:55:02,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 21:55:02,861 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 7 states. [2018-12-02 21:55:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:03,018 INFO L93 Difference]: Finished difference Result 204 states and 243 transitions. [2018-12-02 21:55:03,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 21:55:03,018 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 21:55:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:03,019 INFO L225 Difference]: With dead ends: 204 [2018-12-02 21:55:03,020 INFO L226 Difference]: Without dead ends: 114 [2018-12-02 21:55:03,020 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 21:55:03,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-12-02 21:55:03,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-12-02 21:55:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-12-02 21:55:03,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2018-12-02 21:55:03,030 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 51 [2018-12-02 21:55:03,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:03,031 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2018-12-02 21:55:03,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 21:55:03,031 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2018-12-02 21:55:03,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-02 21:55:03,033 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:03,033 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] [2018-12-02 21:55:03,033 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:03,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:03,033 INFO L82 PathProgramCache]: Analyzing trace with hash -965709387, now seen corresponding path program 1 times [2018-12-02 21:55:03,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:03,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:03,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:03,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:03,035 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:03,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:03,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 21:55:03,101 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:03,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 21:55:03,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 21:55:03,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 21:55:03,101 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 5 states. [2018-12-02 21:55:03,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:03,346 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2018-12-02 21:55:03,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 21:55:03,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-02 21:55:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:03,348 INFO L225 Difference]: With dead ends: 298 [2018-12-02 21:55:03,348 INFO L226 Difference]: Without dead ends: 208 [2018-12-02 21:55:03,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 21:55:03,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-12-02 21:55:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 190. [2018-12-02 21:55:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-12-02 21:55:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2018-12-02 21:55:03,363 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 64 [2018-12-02 21:55:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:03,363 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2018-12-02 21:55:03,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 21:55:03,363 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2018-12-02 21:55:03,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 21:55:03,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:03,364 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, 1, 1, 1, 1] [2018-12-02 21:55:03,364 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:03,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:03,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1940212872, now seen corresponding path program 1 times [2018-12-02 21:55:03,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:03,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:03,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:03,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:03,366 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:03,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:03,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 21:55:03,423 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:03,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 21:55:03,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 21:55:03,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 21:55:03,424 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand 6 states. [2018-12-02 21:55:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:03,538 INFO L93 Difference]: Finished difference Result 507 states and 601 transitions. [2018-12-02 21:55:03,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 21:55:03,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-02 21:55:03,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:03,540 INFO L225 Difference]: With dead ends: 507 [2018-12-02 21:55:03,540 INFO L226 Difference]: Without dead ends: 341 [2018-12-02 21:55:03,541 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 21:55:03,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2018-12-02 21:55:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 335. [2018-12-02 21:55:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2018-12-02 21:55:03,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 384 transitions. [2018-12-02 21:55:03,565 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 384 transitions. Word has length 78 [2018-12-02 21:55:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:03,566 INFO L480 AbstractCegarLoop]: Abstraction has 335 states and 384 transitions. [2018-12-02 21:55:03,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 21:55:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 384 transitions. [2018-12-02 21:55:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-02 21:55:03,567 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:03,567 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:55:03,567 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:03,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:03,567 INFO L82 PathProgramCache]: Analyzing trace with hash -323261260, now seen corresponding path program 1 times [2018-12-02 21:55:03,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:03,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:03,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:03,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:03,568 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:03,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:03,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 21:55:03,633 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:03,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 21:55:03,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 21:55:03,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 21:55:03,634 INFO L87 Difference]: Start difference. First operand 335 states and 384 transitions. Second operand 7 states. [2018-12-02 21:55:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:03,983 INFO L93 Difference]: Finished difference Result 368 states and 434 transitions. [2018-12-02 21:55:03,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 21:55:03,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2018-12-02 21:55:03,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:03,985 INFO L225 Difference]: With dead ends: 368 [2018-12-02 21:55:03,985 INFO L226 Difference]: Without dead ends: 365 [2018-12-02 21:55:03,986 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 21:55:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2018-12-02 21:55:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 335. [2018-12-02 21:55:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2018-12-02 21:55:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 383 transitions. [2018-12-02 21:55:04,000 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 383 transitions. Word has length 82 [2018-12-02 21:55:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:04,001 INFO L480 AbstractCegarLoop]: Abstraction has 335 states and 383 transitions. [2018-12-02 21:55:04,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 21:55:04,001 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 383 transitions. [2018-12-02 21:55:04,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 21:55:04,002 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:04,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:55:04,002 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:04,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:04,002 INFO L82 PathProgramCache]: Analyzing trace with hash -48307244, now seen corresponding path program 1 times [2018-12-02 21:55:04,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:04,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:04,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,003 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:04,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:04,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 21:55:04,043 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:04,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 21:55:04,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 21:55:04,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 21:55:04,044 INFO L87 Difference]: Start difference. First operand 335 states and 383 transitions. Second operand 6 states. [2018-12-02 21:55:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:04,080 INFO L93 Difference]: Finished difference Result 656 states and 762 transitions. [2018-12-02 21:55:04,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 21:55:04,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-12-02 21:55:04,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:04,082 INFO L225 Difference]: With dead ends: 656 [2018-12-02 21:55:04,082 INFO L226 Difference]: Without dead ends: 345 [2018-12-02 21:55:04,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 21:55:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2018-12-02 21:55:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2018-12-02 21:55:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-12-02 21:55:04,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2018-12-02 21:55:04,094 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 83 [2018-12-02 21:55:04,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:04,094 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2018-12-02 21:55:04,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 21:55:04,094 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2018-12-02 21:55:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 21:55:04,095 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:04,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:55:04,095 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:04,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:04,095 INFO L82 PathProgramCache]: Analyzing trace with hash -25674990, now seen corresponding path program 1 times [2018-12-02 21:55:04,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:04,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:04,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,096 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:04,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:04,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:04,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 21:55:04,134 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:04,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 21:55:04,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 21:55:04,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 21:55:04,135 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 8 states. [2018-12-02 21:55:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:04,165 INFO L93 Difference]: Finished difference Result 680 states and 796 transitions. [2018-12-02 21:55:04,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 21:55:04,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2018-12-02 21:55:04,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:04,167 INFO L225 Difference]: With dead ends: 680 [2018-12-02 21:55:04,167 INFO L226 Difference]: Without dead ends: 359 [2018-12-02 21:55:04,168 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 21:55:04,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2018-12-02 21:55:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 353. [2018-12-02 21:55:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2018-12-02 21:55:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 401 transitions. [2018-12-02 21:55:04,179 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 401 transitions. Word has length 83 [2018-12-02 21:55:04,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:04,179 INFO L480 AbstractCegarLoop]: Abstraction has 353 states and 401 transitions. [2018-12-02 21:55:04,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 21:55:04,179 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 401 transitions. [2018-12-02 21:55:04,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 21:55:04,180 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:04,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:55:04,180 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:04,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:04,181 INFO L82 PathProgramCache]: Analyzing trace with hash 999817009, now seen corresponding path program 1 times [2018-12-02 21:55:04,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:04,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:04,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,182 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:55:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:55:04,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:55:04,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 21:55:04,226 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:55:04,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 21:55:04,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 21:55:04,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 21:55:04,227 INFO L87 Difference]: Start difference. First operand 353 states and 401 transitions. Second operand 4 states. [2018-12-02 21:55:04,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:55:04,355 INFO L93 Difference]: Finished difference Result 1067 states and 1282 transitions. [2018-12-02 21:55:04,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 21:55:04,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2018-12-02 21:55:04,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:55:04,359 INFO L225 Difference]: With dead ends: 1067 [2018-12-02 21:55:04,359 INFO L226 Difference]: Without dead ends: 738 [2018-12-02 21:55:04,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 21:55:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2018-12-02 21:55:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 477. [2018-12-02 21:55:04,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2018-12-02 21:55:04,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 538 transitions. [2018-12-02 21:55:04,395 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 538 transitions. Word has length 83 [2018-12-02 21:55:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:55:04,395 INFO L480 AbstractCegarLoop]: Abstraction has 477 states and 538 transitions. [2018-12-02 21:55:04,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 21:55:04,395 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 538 transitions. [2018-12-02 21:55:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-02 21:55:04,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:55:04,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:55:04,397 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:55:04,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:55:04,397 INFO L82 PathProgramCache]: Analyzing trace with hash -864422889, now seen corresponding path program 1 times [2018-12-02 21:55:04,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:55:04,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:55:04,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:55:04,398 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:55:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 21:55:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 21:55:04,477 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 21:55:04,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:55:04 BoogieIcfgContainer [2018-12-02 21:55:04,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 21:55:04,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 21:55:04,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 21:55:04,541 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 21:55:04,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:55:02" (3/4) ... [2018-12-02 21:55:04,542 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 21:55:04,609 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e1d02dfc-9aa9-43e8-9463-683a41dd4f1d/bin-2019/utaipan/witness.graphml [2018-12-02 21:55:04,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 21:55:04,610 INFO L168 Benchmark]: Toolchain (without parser) took 2843.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-12-02 21:55:04,611 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:55:04,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -136.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 21:55:04,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:55:04,612 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 21:55:04,612 INFO L168 Benchmark]: RCFGBuilder took 321.60 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-02 21:55:04,612 INFO L168 Benchmark]: TraceAbstraction took 2107.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -55.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2018-12-02 21:55:04,613 INFO L168 Benchmark]: Witness Printer took 69.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-12-02 21:55:04,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -136.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 321.60 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2107.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -55.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * Witness Printer took 69.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L492] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L494] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L498] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L499] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L776] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L778] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L788] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L850] COND TRUE waterLevel < 2 [L851] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L788] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L798] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L798] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L819] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L624] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L753] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L912] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L753] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L629] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L633] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L678] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L633] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L668] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L604] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L610] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] int tmp ; [L515] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L519] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L523] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L527] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L543] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 136 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1285 SDtfs, 799 SDslu, 2696 SDs, 0 SdLazy, 929 SolverSat, 257 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 321 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 74237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...