./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product38_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_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/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 764a558f84753bff2f3381f04a56ebf221297041 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2018-12-03 04:58:02,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 04:58:02,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 04:58:02,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 04:58:02,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 04:58:02,556 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 04:58:02,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 04:58:02,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 04:58:02,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 04:58:02,559 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 04:58:02,559 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 04:58:02,559 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 04:58:02,560 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 04:58:02,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 04:58:02,561 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 04:58:02,561 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 04:58:02,562 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 04:58:02,563 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 04:58:02,564 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 04:58:02,565 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 04:58:02,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 04:58:02,566 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 04:58:02,567 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 04:58:02,567 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 04:58:02,567 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 04:58:02,568 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 04:58:02,568 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 04:58:02,569 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 04:58:02,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 04:58:02,570 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 04:58:02,570 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 04:58:02,570 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 04:58:02,571 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 04:58:02,571 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 04:58:02,571 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 04:58:02,572 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 04:58:02,572 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 04:58:02,579 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 04:58:02,579 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 04:58:02,580 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 04:58:02,580 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 04:58:02,580 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 04:58:02,580 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 04:58:02,580 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 04:58:02,581 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 04:58:02,581 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 04:58:02,581 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 04:58:02,581 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 04:58:02,581 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 04:58:02,581 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 04:58:02,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 04:58:02,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 04:58:02,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 04:58:02,582 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 04:58:02,582 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 04:58:02,582 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 04:58:02,582 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 04:58:02,583 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 04:58:02,583 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 04:58:02,583 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 04:58:02,583 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 04:58:02,583 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 04:58:02,583 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 04:58:02,583 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 04:58:02,583 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 04:58:02,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 04:58:02,584 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 04:58:02,584 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 04:58:02,584 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 04:58:02,584 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 04:58:02,584 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 04:58:02,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 04:58:02,585 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 04:58:02,585 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_805e88db-d2d0-474c-84dc-4ce4b2951209/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 -> 764a558f84753bff2f3381f04a56ebf221297041 [2018-12-03 04:58:02,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 04:58:02,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 04:58:02,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 04:58:02,612 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 04:58:02,612 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 04:58:02,612 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product38_false-unreach-call_false-termination.cil.c [2018-12-03 04:58:02,646 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/data/9903c0590/8dca4984f31546deb6d371f063ed2d27/FLAGef8f8fd64 [2018-12-03 04:58:03,011 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 04:58:03,011 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/sv-benchmarks/c/product-lines/minepump_spec4_product38_false-unreach-call_false-termination.cil.c [2018-12-03 04:58:03,017 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/data/9903c0590/8dca4984f31546deb6d371f063ed2d27/FLAGef8f8fd64 [2018-12-03 04:58:03,382 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/data/9903c0590/8dca4984f31546deb6d371f063ed2d27 [2018-12-03 04:58:03,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 04:58:03,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 04:58:03,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 04:58:03,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 04:58:03,388 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 04:58:03,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6ee20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03, skipping insertion in model container [2018-12-03 04:58:03,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 04:58:03,415 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 04:58:03,560 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:58:03,568 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 04:58:03,653 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:58:03,669 INFO L195 MainTranslator]: Completed translation [2018-12-03 04:58:03,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03 WrapperNode [2018-12-03 04:58:03,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 04:58:03,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 04:58:03,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 04:58:03,670 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 04:58:03,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 04:58:03,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 04:58:03,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 04:58:03,698 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 04:58:03,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... [2018-12-03 04:58:03,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 04:58:03,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 04:58:03,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 04:58:03,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 04:58:03,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/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 [2018-12-03 04:58:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 04:58:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 04:58:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-03 04:58:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-03 04:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 04:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 04:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 04:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 04:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 04:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 04:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 04:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 04:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 04:58:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 04:58:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 04:58:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 04:58:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 04:58:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 04:58:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 04:58:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 04:58:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 04:58:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-03 04:58:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-03 04:58:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-03 04:58:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-03 04:58:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 04:58:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 04:58:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 04:58:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 04:58:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 04:58:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 04:58:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 04:58:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 04:58:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-03 04:58:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-03 04:58:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 04:58:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 04:58:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 04:58:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 04:58:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 04:58:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 04:58:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 04:58:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 04:58:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 04:58:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 04:58:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-03 04:58:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-03 04:58:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-03 04:58:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-03 04:58:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 04:58:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 04:58:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 04:58:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 04:58:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 04:58:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 04:58:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 04:58:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 04:58:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 04:58:04,058 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 04:58:04,058 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 04:58:04,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:58:04 BoogieIcfgContainer [2018-12-03 04:58:04,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 04:58:04,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 04:58:04,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 04:58:04,062 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 04:58:04,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 04:58:03" (1/3) ... [2018-12-03 04:58:04,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479b0894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:58:04, skipping insertion in model container [2018-12-03 04:58:04,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:58:03" (2/3) ... [2018-12-03 04:58:04,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479b0894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:58:04, skipping insertion in model container [2018-12-03 04:58:04,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:58:04" (3/3) ... [2018-12-03 04:58:04,065 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38_false-unreach-call_false-termination.cil.c [2018-12-03 04:58:04,073 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 04:58:04,080 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 04:58:04,089 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 04:58:04,113 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 04:58:04,113 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 04:58:04,113 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 04:58:04,113 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 04:58:04,113 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 04:58:04,113 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 04:58:04,113 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 04:58:04,113 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 04:58:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-12-03 04:58:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 04:58:04,131 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:04,132 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] [2018-12-03 04:58:04,133 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:04,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:04,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1964690119, now seen corresponding path program 1 times [2018-12-03 04:58:04,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:04,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:04,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,173 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:58:04,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:58:04,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 04:58:04,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:04,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 04:58:04,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 04:58:04,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 04:58:04,316 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2018-12-03 04:58:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:04,339 INFO L93 Difference]: Finished difference Result 260 states and 319 transitions. [2018-12-03 04:58:04,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 04:58:04,339 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 04:58:04,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:04,346 INFO L225 Difference]: With dead ends: 260 [2018-12-03 04:58:04,346 INFO L226 Difference]: Without dead ends: 130 [2018-12-03 04:58:04,348 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 [2018-12-03 04:58:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-03 04:58:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-12-03 04:58:04,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-12-03 04:58:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2018-12-03 04:58:04,379 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 46 [2018-12-03 04:58:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:04,379 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2018-12-03 04:58:04,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 04:58:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2018-12-03 04:58:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 04:58:04,381 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:04,381 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] [2018-12-03 04:58:04,381 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:04,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:04,381 INFO L82 PathProgramCache]: Analyzing trace with hash -213748810, now seen corresponding path program 1 times [2018-12-03 04:58:04,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:04,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:04,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:58:04,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:58:04,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 04:58:04,440 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:04,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 04:58:04,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 04:58:04,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 04:58:04,442 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 3 states. [2018-12-03 04:58:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:04,454 INFO L93 Difference]: Finished difference Result 205 states and 237 transitions. [2018-12-03 04:58:04,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 04:58:04,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 04:58:04,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:04,456 INFO L225 Difference]: With dead ends: 205 [2018-12-03 04:58:04,456 INFO L226 Difference]: Without dead ends: 121 [2018-12-03 04:58:04,456 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 [2018-12-03 04:58:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-03 04:58:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-03 04:58:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-03 04:58:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2018-12-03 04:58:04,464 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 47 [2018-12-03 04:58:04,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:04,464 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2018-12-03 04:58:04,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 04:58:04,464 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2018-12-03 04:58:04,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-03 04:58:04,465 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:04,465 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] [2018-12-03 04:58:04,465 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:04,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:04,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1180609704, now seen corresponding path program 1 times [2018-12-03 04:58:04,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:04,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:04,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,466 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:58:04,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:58:04,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 04:58:04,533 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:04,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 04:58:04,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 04:58:04,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-03 04:58:04,534 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand 7 states. [2018-12-03 04:58:04,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:04,667 INFO L93 Difference]: Finished difference Result 218 states and 255 transitions. [2018-12-03 04:58:04,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 04:58:04,667 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-03 04:58:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:04,668 INFO L225 Difference]: With dead ends: 218 [2018-12-03 04:58:04,668 INFO L226 Difference]: Without dead ends: 121 [2018-12-03 04:58:04,669 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 [2018-12-03 04:58:04,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-03 04:58:04,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-03 04:58:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-03 04:58:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2018-12-03 04:58:04,676 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 52 [2018-12-03 04:58:04,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:04,676 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2018-12-03 04:58:04,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 04:58:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2018-12-03 04:58:04,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-03 04:58:04,677 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:04,678 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] [2018-12-03 04:58:04,678 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:04,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:04,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1317129100, now seen corresponding path program 1 times [2018-12-03 04:58:04,678 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:04,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:04,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:04,679 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:58:04,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:58:04,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 04:58:04,729 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:04,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 04:58:04,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 04:58:04,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 04:58:04,729 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 5 states. [2018-12-03 04:58:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:05,020 INFO L93 Difference]: Finished difference Result 317 states and 379 transitions. [2018-12-03 04:58:05,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 04:58:05,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-03 04:58:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:05,021 INFO L225 Difference]: With dead ends: 317 [2018-12-03 04:58:05,021 INFO L226 Difference]: Without dead ends: 220 [2018-12-03 04:58:05,022 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 [2018-12-03 04:58:05,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-12-03 04:58:05,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 201. [2018-12-03 04:58:05,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-12-03 04:58:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2018-12-03 04:58:05,037 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 65 [2018-12-03 04:58:05,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:05,038 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2018-12-03 04:58:05,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 04:58:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2018-12-03 04:58:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-03 04:58:05,039 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:05,039 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] [2018-12-03 04:58:05,039 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:05,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1370842121, now seen corresponding path program 1 times [2018-12-03 04:58:05,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:05,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:05,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:05,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:05,040 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:58:05,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:58:05,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-03 04:58:05,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:05,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 04:58:05,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 04:58:05,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-03 04:58:05,126 INFO L87 Difference]: Start difference. First operand 201 states and 227 transitions. Second operand 10 states. [2018-12-03 04:58:05,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:05,434 INFO L93 Difference]: Finished difference Result 644 states and 795 transitions. [2018-12-03 04:58:05,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 04:58:05,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-12-03 04:58:05,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:05,439 INFO L225 Difference]: With dead ends: 644 [2018-12-03 04:58:05,439 INFO L226 Difference]: Without dead ends: 467 [2018-12-03 04:58:05,440 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 [2018-12-03 04:58:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2018-12-03 04:58:05,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 457. [2018-12-03 04:58:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2018-12-03 04:58:05,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 535 transitions. [2018-12-03 04:58:05,475 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 535 transitions. Word has length 79 [2018-12-03 04:58:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:05,475 INFO L480 AbstractCegarLoop]: Abstraction has 457 states and 535 transitions. [2018-12-03 04:58:05,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 04:58:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 535 transitions. [2018-12-03 04:58:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-03 04:58:05,480 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:05,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:05,480 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:05,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:05,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1618474708, now seen corresponding path program 1 times [2018-12-03 04:58:05,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:05,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:05,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:05,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:05,482 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 04:58:05,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:05,563 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:58:05,563 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-03 04:58:05,565 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [97], [99], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-03 04:58:05,589 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:58:05,590 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:58:05,823 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 04:58:05,823 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Performed 1955 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1955 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 04:58:05,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:05,828 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 04:58:06,002 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.49% of their original sizes. [2018-12-03 04:58:06,002 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 04:58:06,046 INFO L418 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-12-03 04:58:06,046 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 04:58:06,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 04:58:06,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-03 04:58:06,047 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:06,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 04:58:06,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 04:58:06,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-12-03 04:58:06,048 INFO L87 Difference]: Start difference. First operand 457 states and 535 transitions. Second operand 10 states. [2018-12-03 04:58:07,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:07,038 INFO L93 Difference]: Finished difference Result 1008 states and 1204 transitions. [2018-12-03 04:58:07,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 04:58:07,039 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2018-12-03 04:58:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:07,041 INFO L225 Difference]: With dead ends: 1008 [2018-12-03 04:58:07,041 INFO L226 Difference]: Without dead ends: 575 [2018-12-03 04:58:07,042 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-12-03 04:58:07,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2018-12-03 04:58:07,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 556. [2018-12-03 04:58:07,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-03 04:58:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 651 transitions. [2018-12-03 04:58:07,060 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 651 transitions. Word has length 128 [2018-12-03 04:58:07,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:07,060 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 651 transitions. [2018-12-03 04:58:07,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 04:58:07,060 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 651 transitions. [2018-12-03 04:58:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-03 04:58:07,062 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:07,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:07,062 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:07,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:07,063 INFO L82 PathProgramCache]: Analyzing trace with hash -635217052, now seen corresponding path program 1 times [2018-12-03 04:58:07,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:07,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:07,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:07,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:07,063 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 04:58:07,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:07,106 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:58:07,107 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-03 04:58:07,107 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [94], [97], [99], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [139], [140], [141], [142], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-03 04:58:07,109 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:58:07,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:58:07,942 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:58:07,942 INFO L272 AbstractInterpreter]: Visited 107 different actions 494 times. Merged at 17 different actions 49 times. Never widened. Performed 24443 root evaluator evaluations with a maximum evaluation depth of 3. Performed 24443 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-03 04:58:07,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:07,946 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:58:07,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:07,946 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/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 [2018-12-03 04:58:07,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:07,953 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:58:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:08,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:58:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 04:58:08,104 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:58:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 04:58:08,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 04:58:08,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-03 04:58:08,291 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:08,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 04:58:08,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 04:58:08,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 04:58:08,292 INFO L87 Difference]: Start difference. First operand 556 states and 651 transitions. Second operand 5 states. [2018-12-03 04:58:08,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:08,323 INFO L93 Difference]: Finished difference Result 1053 states and 1267 transitions. [2018-12-03 04:58:08,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 04:58:08,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-12-03 04:58:08,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:08,325 INFO L225 Difference]: With dead ends: 1053 [2018-12-03 04:58:08,326 INFO L226 Difference]: Without dead ends: 521 [2018-12-03 04:58:08,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 261 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 04:58:08,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2018-12-03 04:58:08,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2018-12-03 04:58:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2018-12-03 04:58:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 602 transitions. [2018-12-03 04:58:08,351 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 602 transitions. Word has length 132 [2018-12-03 04:58:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:08,351 INFO L480 AbstractCegarLoop]: Abstraction has 521 states and 602 transitions. [2018-12-03 04:58:08,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 04:58:08,351 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 602 transitions. [2018-12-03 04:58:08,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-03 04:58:08,353 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:08,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:08,354 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:08,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:08,354 INFO L82 PathProgramCache]: Analyzing trace with hash 285480392, now seen corresponding path program 1 times [2018-12-03 04:58:08,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:08,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:08,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:08,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:08,355 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 04:58:08,398 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:08,398 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:58:08,398 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-03 04:58:08,398 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [97], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-03 04:58:08,401 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:58:08,401 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:58:08,540 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 04:58:08,541 INFO L272 AbstractInterpreter]: Visited 63 different actions 91 times. Merged at 4 different actions 4 times. Never widened. Performed 4671 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4671 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 04:58:08,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:08,542 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 04:58:08,692 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 96.48% of their original sizes. [2018-12-03 04:58:08,692 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 04:58:08,759 INFO L418 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-12-03 04:58:08,759 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 04:58:08,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 04:58:08,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-03 04:58:08,759 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:08,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-03 04:58:08,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-03 04:58:08,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-03 04:58:08,760 INFO L87 Difference]: Start difference. First operand 521 states and 602 transitions. Second operand 13 states. [2018-12-03 04:58:09,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:09,813 INFO L93 Difference]: Finished difference Result 979 states and 1139 transitions. [2018-12-03 04:58:09,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-03 04:58:09,814 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2018-12-03 04:58:09,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:09,816 INFO L225 Difference]: With dead ends: 979 [2018-12-03 04:58:09,816 INFO L226 Difference]: Without dead ends: 539 [2018-12-03 04:58:09,817 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2018-12-03 04:58:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2018-12-03 04:58:09,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 480. [2018-12-03 04:58:09,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2018-12-03 04:58:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 546 transitions. [2018-12-03 04:58:09,835 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 546 transitions. Word has length 132 [2018-12-03 04:58:09,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:09,835 INFO L480 AbstractCegarLoop]: Abstraction has 480 states and 546 transitions. [2018-12-03 04:58:09,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-03 04:58:09,835 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 546 transitions. [2018-12-03 04:58:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-03 04:58:09,837 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:09,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:09,837 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:09,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:09,837 INFO L82 PathProgramCache]: Analyzing trace with hash -400401120, now seen corresponding path program 1 times [2018-12-03 04:58:09,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:09,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:09,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:09,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:09,838 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-03 04:58:09,878 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:09,878 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:58:09,878 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-03 04:58:09,878 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [94], [99], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-03 04:58:09,880 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:58:09,880 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:58:09,944 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 04:58:09,944 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 2057 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2057 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 04:58:09,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:09,950 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 04:58:10,029 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.42% of their original sizes. [2018-12-03 04:58:10,029 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 04:58:10,063 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-03 04:58:10,063 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 04:58:10,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 04:58:10,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-12-03 04:58:10,063 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:10,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 04:58:10,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 04:58:10,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 04:58:10,063 INFO L87 Difference]: Start difference. First operand 480 states and 546 transitions. Second operand 8 states. [2018-12-03 04:58:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:10,765 INFO L93 Difference]: Finished difference Result 992 states and 1175 transitions. [2018-12-03 04:58:10,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 04:58:10,765 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2018-12-03 04:58:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:10,767 INFO L225 Difference]: With dead ends: 992 [2018-12-03 04:58:10,767 INFO L226 Difference]: Without dead ends: 656 [2018-12-03 04:58:10,768 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 04:58:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2018-12-03 04:58:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 641. [2018-12-03 04:58:10,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2018-12-03 04:58:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 730 transitions. [2018-12-03 04:58:10,785 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 730 transitions. Word has length 136 [2018-12-03 04:58:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:10,785 INFO L480 AbstractCegarLoop]: Abstraction has 641 states and 730 transitions. [2018-12-03 04:58:10,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 04:58:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 730 transitions. [2018-12-03 04:58:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-03 04:58:10,787 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:10,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:10,787 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:10,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:10,788 INFO L82 PathProgramCache]: Analyzing trace with hash 2087054274, now seen corresponding path program 1 times [2018-12-03 04:58:10,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:10,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:10,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:10,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:10,789 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 04:58:10,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:10,839 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:58:10,839 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-03 04:58:10,839 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [94], [97], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-03 04:58:10,841 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:58:10,842 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:58:11,096 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 04:58:11,096 INFO L272 AbstractInterpreter]: Visited 68 different actions 159 times. Merged at 8 different actions 15 times. Never widened. Performed 8590 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8590 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 04:58:11,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:11,098 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 04:58:11,192 INFO L227 lantSequenceWeakener]: Weakened 77 states. On average, predicates are now at 96.84% of their original sizes. [2018-12-03 04:58:11,192 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 04:58:11,275 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-03 04:58:11,275 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 04:58:11,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 04:58:11,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-12-03 04:58:11,275 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:11,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-03 04:58:11,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-03 04:58:11,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-12-03 04:58:11,276 INFO L87 Difference]: Start difference. First operand 641 states and 730 transitions. Second operand 16 states. [2018-12-03 04:58:14,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:14,235 INFO L93 Difference]: Finished difference Result 1758 states and 2156 transitions. [2018-12-03 04:58:14,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-03 04:58:14,235 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 136 [2018-12-03 04:58:14,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:14,238 INFO L225 Difference]: With dead ends: 1758 [2018-12-03 04:58:14,238 INFO L226 Difference]: Without dead ends: 1318 [2018-12-03 04:58:14,240 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122 [2018-12-03 04:58:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2018-12-03 04:58:14,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1255. [2018-12-03 04:58:14,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2018-12-03 04:58:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1461 transitions. [2018-12-03 04:58:14,275 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1461 transitions. Word has length 136 [2018-12-03 04:58:14,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:14,276 INFO L480 AbstractCegarLoop]: Abstraction has 1255 states and 1461 transitions. [2018-12-03 04:58:14,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-03 04:58:14,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1461 transitions. [2018-12-03 04:58:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-03 04:58:14,277 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:14,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:14,278 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:14,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:14,278 INFO L82 PathProgramCache]: Analyzing trace with hash -585500385, now seen corresponding path program 1 times [2018-12-03 04:58:14,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:14,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:14,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:14,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:14,278 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-03 04:58:14,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:58:14,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 04:58:14,316 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:14,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 04:58:14,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 04:58:14,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 04:58:14,316 INFO L87 Difference]: Start difference. First operand 1255 states and 1461 transitions. Second operand 6 states. [2018-12-03 04:58:14,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:14,404 INFO L93 Difference]: Finished difference Result 1268 states and 1474 transitions. [2018-12-03 04:58:14,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 04:58:14,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-12-03 04:58:14,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:14,408 INFO L225 Difference]: With dead ends: 1268 [2018-12-03 04:58:14,408 INFO L226 Difference]: Without dead ends: 1265 [2018-12-03 04:58:14,408 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-03 04:58:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2018-12-03 04:58:14,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1255. [2018-12-03 04:58:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2018-12-03 04:58:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1458 transitions. [2018-12-03 04:58:14,442 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1458 transitions. Word has length 136 [2018-12-03 04:58:14,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:14,442 INFO L480 AbstractCegarLoop]: Abstraction has 1255 states and 1458 transitions. [2018-12-03 04:58:14,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 04:58:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1458 transitions. [2018-12-03 04:58:14,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-12-03 04:58:14,444 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:14,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:14,444 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:14,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:14,444 INFO L82 PathProgramCache]: Analyzing trace with hash -558561059, now seen corresponding path program 1 times [2018-12-03 04:58:14,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:14,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:14,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:14,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:14,445 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-03 04:58:14,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:58:14,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-12-03 04:58:14,518 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:14,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-03 04:58:14,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-03 04:58:14,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-12-03 04:58:14,518 INFO L87 Difference]: Start difference. First operand 1255 states and 1458 transitions. Second operand 13 states. [2018-12-03 04:58:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:14,936 INFO L93 Difference]: Finished difference Result 2158 states and 2544 transitions. [2018-12-03 04:58:14,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-03 04:58:14,936 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2018-12-03 04:58:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:14,940 INFO L225 Difference]: With dead ends: 2158 [2018-12-03 04:58:14,940 INFO L226 Difference]: Without dead ends: 1657 [2018-12-03 04:58:14,941 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2018-12-03 04:58:14,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2018-12-03 04:58:14,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1650. [2018-12-03 04:58:14,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2018-12-03 04:58:14,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 1906 transitions. [2018-12-03 04:58:14,984 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 1906 transitions. Word has length 140 [2018-12-03 04:58:14,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:14,984 INFO L480 AbstractCegarLoop]: Abstraction has 1650 states and 1906 transitions. [2018-12-03 04:58:14,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-03 04:58:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 1906 transitions. [2018-12-03 04:58:14,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-03 04:58:14,986 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:14,986 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:14,986 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:14,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:14,986 INFO L82 PathProgramCache]: Analyzing trace with hash -734327439, now seen corresponding path program 1 times [2018-12-03 04:58:14,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:14,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:14,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:14,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:14,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:15,021 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 04:58:15,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:15,021 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:58:15,021 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-12-03 04:58:15,021 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [83], [87], [91], [94], [99], [102], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [139], [140], [141], [142], [145], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [220], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [260], [261], [262], [263], [264], [265], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293], [296], [297] [2018-12-03 04:58:15,022 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:58:15,022 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:58:15,127 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 04:58:15,127 INFO L272 AbstractInterpreter]: Visited 89 different actions 97 times. Merged at 5 different actions 5 times. Never widened. Performed 3124 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3124 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 133 variables. [2018-12-03 04:58:15,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:15,130 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 04:58:15,318 INFO L227 lantSequenceWeakener]: Weakened 115 states. On average, predicates are now at 96.64% of their original sizes. [2018-12-03 04:58:15,318 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 04:58:15,459 INFO L418 sIntCurrentIteration]: We unified 147 AI predicates to 147 [2018-12-03 04:58:15,459 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 04:58:15,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 04:58:15,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [5] total 29 [2018-12-03 04:58:15,459 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:58:15,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-12-03 04:58:15,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-12-03 04:58:15,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2018-12-03 04:58:15,460 INFO L87 Difference]: Start difference. First operand 1650 states and 1906 transitions. Second operand 26 states. [2018-12-03 04:58:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:18,893 INFO L93 Difference]: Finished difference Result 3076 states and 3601 transitions. [2018-12-03 04:58:18,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-03 04:58:18,893 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 148 [2018-12-03 04:58:18,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:18,897 INFO L225 Difference]: With dead ends: 3076 [2018-12-03 04:58:18,897 INFO L226 Difference]: Without dead ends: 1693 [2018-12-03 04:58:18,899 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 160 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=1318, Unknown=0, NotChecked=0, Total=1482 [2018-12-03 04:58:18,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2018-12-03 04:58:18,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1669. [2018-12-03 04:58:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1669 states. [2018-12-03 04:58:18,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 1921 transitions. [2018-12-03 04:58:18,942 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 1921 transitions. Word has length 148 [2018-12-03 04:58:18,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:18,942 INFO L480 AbstractCegarLoop]: Abstraction has 1669 states and 1921 transitions. [2018-12-03 04:58:18,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-12-03 04:58:18,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 1921 transitions. [2018-12-03 04:58:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-03 04:58:18,943 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:18,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:58:18,944 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:18,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:18,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1430767807, now seen corresponding path program 1 times [2018-12-03 04:58:18,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:18,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:18,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:18,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:18,944 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-03 04:58:19,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:19,028 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:58:19,028 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-03 04:58:19,028 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [83], [87], [91], [94], [97], [99], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [139], [140], [141], [142], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [220], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [260], [261], [262], [263], [264], [265], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293], [296], [297] [2018-12-03 04:58:19,030 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:58:19,030 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:58:19,573 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:58:19,574 INFO L272 AbstractInterpreter]: Visited 113 different actions 476 times. Merged at 16 different actions 46 times. Never widened. Performed 16090 root evaluator evaluations with a maximum evaluation depth of 3. Performed 16090 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-03 04:58:19,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:19,582 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:58:19,582 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:58:19,582 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 04:58:19,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:19,588 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:58:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:58:19,661 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:58:19,720 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:58:19,720 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:58:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-03 04:58:19,901 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 04:58:19,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-03 04:58:19,902 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 04:58:19,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-03 04:58:19,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-03 04:58:19,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-03 04:58:19,903 INFO L87 Difference]: Start difference. First operand 1669 states and 1921 transitions. Second operand 15 states. [2018-12-03 04:58:20,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:58:20,589 INFO L93 Difference]: Finished difference Result 3117 states and 3910 transitions. [2018-12-03 04:58:20,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-03 04:58:20,590 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 136 [2018-12-03 04:58:20,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:58:20,594 INFO L225 Difference]: With dead ends: 3117 [2018-12-03 04:58:20,594 INFO L226 Difference]: Without dead ends: 1839 [2018-12-03 04:58:20,596 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 264 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-03 04:58:20,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2018-12-03 04:58:20,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1576. [2018-12-03 04:58:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2018-12-03 04:58:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1805 transitions. [2018-12-03 04:58:20,643 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1805 transitions. Word has length 136 [2018-12-03 04:58:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:58:20,644 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 1805 transitions. [2018-12-03 04:58:20,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-03 04:58:20,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1805 transitions. [2018-12-03 04:58:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-12-03 04:58:20,646 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:58:20,646 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-03 04:58:20,646 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:58:20,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:58:20,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1586802669, now seen corresponding path program 2 times [2018-12-03 04:58:20,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:58:20,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:20,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:58:20,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:58:20,647 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:58:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 04:58:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 04:58:20,753 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 04:58:20,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:58:20 BoogieIcfgContainer [2018-12-03 04:58:20,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 04:58:20,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 04:58:20,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 04:58:20,862 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 04:58:20,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:58:04" (3/4) ... [2018-12-03 04:58:20,863 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 04:58:20,968 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_805e88db-d2d0-474c-84dc-4ce4b2951209/bin-2019/utaipan/witness.graphml [2018-12-03 04:58:20,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 04:58:20,969 INFO L168 Benchmark]: Toolchain (without parser) took 17584.73 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 939.5 MB). Free memory was 952.4 MB in the beginning and 957.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 934.9 MB. Max. memory is 11.5 GB. [2018-12-03 04:58:20,969 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:58:20,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -114.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-03 04:58:20,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.94 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. [2018-12-03 04:58:20,970 INFO L168 Benchmark]: Boogie Preprocessor took 31.55 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. [2018-12-03 04:58:20,970 INFO L168 Benchmark]: RCFGBuilder took 329.25 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2018-12-03 04:58:20,970 INFO L168 Benchmark]: TraceAbstraction took 16801.73 ms. Allocated memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: 846.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -5.2 MB). Peak memory consumption was 841.0 MB. Max. memory is 11.5 GB. [2018-12-03 04:58:20,970 INFO L168 Benchmark]: Witness Printer took 106.83 ms. Allocated memory is still 2.0 GB. Free memory was 1.0 GB in the beginning and 957.0 MB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. [2018-12-03 04:58:20,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -114.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.94 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 31.55 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. * RCFGBuilder took 329.25 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16801.73 ms. Allocated memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: 846.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -5.2 MB). Peak memory consumption was 841.0 MB. Max. memory is 11.5 GB. * Witness Printer took 106.83 ms. Allocated memory is still 2.0 GB. Free memory was 1.0 GB in the beginning and 957.0 MB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 247]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L349] int pumpRunning = 0; [L350] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] 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] [L128] 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] [L128] tmp = valid_product() [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L281] int splverifierCounter ; [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L288] 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] [L290] 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] [L292] 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] [L298] tmp = __VERIFIER_nondet_int() [L300] 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] [L302] 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] [L167] COND TRUE waterLevel < 2 [L168] 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] [L302] 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] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] 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] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L335] 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] [L356] 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] [L363] 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] [L365] 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] [L411] 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] [L414] 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] [L429] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] 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] [L388] 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] [L390] 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] [L508] int retValue_acc ; [L509] int tmp ; [L510] 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] [L514] 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] [L229] 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] [L232] COND FALSE !(waterLevel < 2) [L236] retValue_acc = 0 [L237] 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] [L514] 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] [L514] tmp = isHighWaterSensorDry() [L516] COND FALSE !(\read(tmp)) [L519] 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] [L521] retValue_acc = tmp___0 [L522] 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] [L390] 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] [L390] tmp = isHighWaterLevel() [L392] 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] [L394] 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] [L439] 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] [L394] 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] [L429] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L365] 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] [L371] 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] [L254] int tmp ; [L255] 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] [L259] 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] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] 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] [L259] 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] [L259] tmp = getWaterLevel() [L261] 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] [L371] 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] [L335] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L290] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L292] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] 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=1, tmp___2=0, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L335] 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] [L356] 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] [L358] 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] [L155] COND TRUE waterLevel > 0 [L156] 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] [L358] 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] [L363] 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] [L365] 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] [L411] 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] [L414] 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=1] [L416] CALL, EXPR isMethaneAlarm() 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] [L452] int retValue_acc ; 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] [L456] CALL, EXPR isMethaneLevelCritical() 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] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L416] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(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, tmp=0, waterLevel=1] [L424] CALL processEnvironment__wrappee__highWaterSensor() 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] [L385] 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] [L388] 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] [L403] 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] [L424] RET processEnvironment__wrappee__highWaterSensor() 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=0, waterLevel=1] [L365] 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] [L371] 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] [L254] int tmp ; [L255] 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] [L259] 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] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] 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] [L259] 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] [L259] tmp = getWaterLevel() [L261] 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] [L371] 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] [L335] 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=1, tmp___2=0, waterLevel=1] [L290] 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=1, tmp___2=0, waterLevel=1] [L292] 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=1, tmp___2=0, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] 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=1, tmp___2=0, waterLevel=1] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L335] 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] [L356] 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] [L358] 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] [L155] COND TRUE waterLevel > 0 [L156] 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] [L358] 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] [L363] 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] [L365] 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] [L411] 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] [L414] 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=0] [L416] CALL, EXPR isMethaneAlarm() 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] [L452] int retValue_acc ; 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] [L456] CALL, EXPR isMethaneLevelCritical() 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] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] 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] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L456] retValue_acc = isMethaneLevelCritical() [L458] 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] [L416] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(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, tmp=0, waterLevel=0] [L424] CALL processEnvironment__wrappee__highWaterSensor() 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] [L385] 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] [L388] 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] [L403] 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] [L424] RET processEnvironment__wrappee__highWaterSensor() 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] [L365] 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] [L371] 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] [L254] int tmp ; [L255] 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] [L259] 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] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] 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] [L259] 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] [L259] tmp = getWaterLevel() [L261] 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] [L263] 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] [L463] int retValue_acc ; [L466] retValue_acc = pumpRunning [L467] 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] [L263] 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] [L263] tmp___0 = isPumpRunning() [L265] 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] [L267] 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] [L247] __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 28 procedures, 143 locations, 1 error locations. UNSAFE Result, 16.7s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 11.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2536 SDtfs, 2903 SDslu, 10873 SDs, 0 SdLazy, 6361 SolverSat, 1064 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1388 GetRequests, 1170 SyntacticMatches, 10 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 955 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1669occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.2s AbstIntTime, 7 AbstIntIterations, 5 AbstIntStrong, 0.9977380765384953 AbsIntWeakeningRatio, 0.8888888888888888 AbsIntAvgWeakeningVarsNumRemoved, 57.6562962962963 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 489 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1969 NumberOfCodeBlocks, 1969 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2031 ConstructedInterpolants, 0 QuantifiedInterpolants, 351554 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1656 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 319/357 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...