./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-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_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/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 5a35b365de7365eb1088366c2b8165f4a523d787 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 14:54:30,744 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:54:30,745 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:54:30,751 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:54:30,751 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:54:30,752 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:54:30,752 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:54:30,753 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:54:30,754 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:54:30,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:54:30,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:54:30,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:54:30,755 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:54:30,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:54:30,756 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:54:30,757 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:54:30,757 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:54:30,758 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:54:30,759 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:54:30,760 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:54:30,760 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:54:30,761 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:54:30,762 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:54:30,762 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:54:30,762 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:54:30,762 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:54:30,763 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:54:30,763 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:54:30,764 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:54:30,764 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:54:30,764 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:54:30,765 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:54:30,765 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:54:30,765 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:54:30,765 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:54:30,766 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:54:30,766 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 14:54:30,773 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:54:30,773 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:54:30,773 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 14:54:30,774 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 14:54:30,774 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 14:54:30,775 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 14:54:30,775 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 14:54:30,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 14:54:30,776 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 14:54:30,776 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 14:54:30,777 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 14:54:30,777 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 14:54:30,777 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 14:54:30,777 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_0db89015-941d-4619-b38f-dee10af4b709/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 -> 5a35b365de7365eb1088366c2b8165f4a523d787 [2018-12-02 14:54:30,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:54:30,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:54:30,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:54:30,803 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:54:30,803 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:54:30,803 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-12-02 14:54:30,837 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/data/a9e50cfa3/0e22068848134540925cb1600c516a0b/FLAG44f1bb12d [2018-12-02 14:54:31,142 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:54:31,142 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-12-02 14:54:31,149 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/data/a9e50cfa3/0e22068848134540925cb1600c516a0b/FLAG44f1bb12d [2018-12-02 14:54:31,157 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/data/a9e50cfa3/0e22068848134540925cb1600c516a0b [2018-12-02 14:54:31,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:54:31,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:54:31,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:54:31,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:54:31,162 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:54:31,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31, skipping insertion in model container [2018-12-02 14:54:31,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:54:31,189 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:54:31,339 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:54:31,346 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:54:31,433 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:54:31,449 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:54:31,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31 WrapperNode [2018-12-02 14:54:31,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:54:31,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:54:31,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:54:31,450 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:54:31,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:54:31,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:54:31,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:54:31,471 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:54:31,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2018-12-02 14:54:31,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:54:31,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:54:31,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:54:31,493 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:54:31,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 14:54:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 14:54:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 14:54:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 14:54:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 14:54:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 14:54:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 14:54:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 14:54:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 14:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 14:54:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 14:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 14:54:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 14:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 14:54:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 14:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 14:54:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 14:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 14:54:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 14:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 14:54:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 14:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 14:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 14:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 14:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 14:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 14:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 14:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 14:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 14:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 14:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 14:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 14:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 14:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 14:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 14:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 14:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 14:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 14:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 14:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 14:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 14:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 14:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 14:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 14:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 14:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 14:54:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 14:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 14:54:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 14:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 14:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 14:54:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 14:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 14:54:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 14:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 14:54:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 14:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:54:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:54:31,836 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:54:31,837 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 14:54:31,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:54:31 BoogieIcfgContainer [2018-12-02 14:54:31,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:54:31,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 14:54:31,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 14:54:31,840 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 14:54:31,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:54:31" (1/3) ... [2018-12-02 14:54:31,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2906c4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:54:31, skipping insertion in model container [2018-12-02 14:54:31,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (2/3) ... [2018-12-02 14:54:31,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2906c4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:54:31, skipping insertion in model container [2018-12-02 14:54:31,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:54:31" (3/3) ... [2018-12-02 14:54:31,842 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-12-02 14:54:31,848 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 14:54:31,853 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 14:54:31,862 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 14:54:31,881 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 14:54:31,881 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 14:54:31,881 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 14:54:31,881 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 14:54:31,881 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 14:54:31,881 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 14:54:31,881 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 14:54:31,882 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 14:54:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2018-12-02 14:54:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 14:54:31,898 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:31,899 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:54:31,900 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:31,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:31,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1577511589, now seen corresponding path program 1 times [2018-12-02 14:54:31,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:31,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:31,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:31,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:31,934 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:54:32,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:54:32,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 14:54:32,046 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:32,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 14:54:32,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 14:54:32,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 14:54:32,058 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2018-12-02 14:54:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:32,083 INFO L93 Difference]: Finished difference Result 298 states and 365 transitions. [2018-12-02 14:54:32,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 14:54:32,083 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 14:54:32,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:32,090 INFO L225 Difference]: With dead ends: 298 [2018-12-02 14:54:32,091 INFO L226 Difference]: Without dead ends: 149 [2018-12-02 14:54:32,093 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 14:54:32,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-12-02 14:54:32,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-12-02 14:54:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-12-02 14:54:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2018-12-02 14:54:32,124 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 46 [2018-12-02 14:54:32,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:32,125 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2018-12-02 14:54:32,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 14:54:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2018-12-02 14:54:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 14:54:32,126 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:32,127 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:54:32,127 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:32,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:32,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1559707718, now seen corresponding path program 1 times [2018-12-02 14:54:32,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:32,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:32,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:32,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:32,128 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:54:32,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:54:32,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 14:54:32,181 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:32,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 14:54:32,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 14:54:32,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 14:54:32,183 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand 3 states. [2018-12-02 14:54:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:32,197 INFO L93 Difference]: Finished difference Result 241 states and 279 transitions. [2018-12-02 14:54:32,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 14:54:32,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 14:54:32,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:32,199 INFO L225 Difference]: With dead ends: 241 [2018-12-02 14:54:32,199 INFO L226 Difference]: Without dead ends: 140 [2018-12-02 14:54:32,200 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 14:54:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-12-02 14:54:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-12-02 14:54:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-12-02 14:54:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2018-12-02 14:54:32,208 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 47 [2018-12-02 14:54:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:32,209 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2018-12-02 14:54:32,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 14:54:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2018-12-02 14:54:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 14:54:32,210 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:32,210 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:54:32,210 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:32,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:32,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1919773205, now seen corresponding path program 1 times [2018-12-02 14:54:32,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:32,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:32,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:32,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:32,212 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:32,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:54:32,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:54:32,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 14:54:32,283 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:32,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 14:54:32,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 14:54:32,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 14:54:32,284 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand 7 states. [2018-12-02 14:54:32,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:32,551 INFO L93 Difference]: Finished difference Result 422 states and 504 transitions. [2018-12-02 14:54:32,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:54:32,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 14:54:32,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:32,554 INFO L225 Difference]: With dead ends: 422 [2018-12-02 14:54:32,554 INFO L226 Difference]: Without dead ends: 306 [2018-12-02 14:54:32,555 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 14:54:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-12-02 14:54:32,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2018-12-02 14:54:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-12-02 14:54:32,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2018-12-02 14:54:32,576 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 51 [2018-12-02 14:54:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:32,576 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2018-12-02 14:54:32,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 14:54:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2018-12-02 14:54:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 14:54:32,578 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:32,578 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] [2018-12-02 14:54:32,578 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:32,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:32,578 INFO L82 PathProgramCache]: Analyzing trace with hash 903237574, now seen corresponding path program 1 times [2018-12-02 14:54:32,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:32,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:32,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:32,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:32,579 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:54:32,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:54:32,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 14:54:32,667 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:32,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 14:54:32,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 14:54:32,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 14:54:32,668 INFO L87 Difference]: Start difference. First operand 298 states and 356 transitions. Second operand 10 states. [2018-12-02 14:54:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:33,023 INFO L93 Difference]: Finished difference Result 1072 states and 1372 transitions. [2018-12-02 14:54:33,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 14:54:33,024 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-02 14:54:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:33,027 INFO L225 Difference]: With dead ends: 1072 [2018-12-02 14:54:33,027 INFO L226 Difference]: Without dead ends: 798 [2018-12-02 14:54:33,029 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-02 14:54:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2018-12-02 14:54:33,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 786. [2018-12-02 14:54:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2018-12-02 14:54:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 972 transitions. [2018-12-02 14:54:33,066 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 972 transitions. Word has length 57 [2018-12-02 14:54:33,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:33,067 INFO L480 AbstractCegarLoop]: Abstraction has 786 states and 972 transitions. [2018-12-02 14:54:33,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 14:54:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 972 transitions. [2018-12-02 14:54:33,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 14:54:33,069 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:33,069 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] [2018-12-02 14:54:33,070 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:33,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:33,070 INFO L82 PathProgramCache]: Analyzing trace with hash -588764660, now seen corresponding path program 1 times [2018-12-02 14:54:33,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:33,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:33,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:33,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:33,071 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:54:33,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:54:33,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 14:54:33,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:33,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 14:54:33,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 14:54:33,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 14:54:33,125 INFO L87 Difference]: Start difference. First operand 786 states and 972 transitions. Second operand 4 states. [2018-12-02 14:54:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:33,377 INFO L93 Difference]: Finished difference Result 1938 states and 2607 transitions. [2018-12-02 14:54:33,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 14:54:33,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-02 14:54:33,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:33,383 INFO L225 Difference]: With dead ends: 1938 [2018-12-02 14:54:33,383 INFO L226 Difference]: Without dead ends: 1176 [2018-12-02 14:54:33,386 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 14:54:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2018-12-02 14:54:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1041. [2018-12-02 14:54:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2018-12-02 14:54:33,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1298 transitions. [2018-12-02 14:54:33,448 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1298 transitions. Word has length 61 [2018-12-02 14:54:33,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:33,449 INFO L480 AbstractCegarLoop]: Abstraction has 1041 states and 1298 transitions. [2018-12-02 14:54:33,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 14:54:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1298 transitions. [2018-12-02 14:54:33,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-02 14:54:33,451 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:33,451 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] [2018-12-02 14:54:33,452 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:33,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:33,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1174479952, now seen corresponding path program 1 times [2018-12-02 14:54:33,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:33,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:33,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:33,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:33,453 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:33,547 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-02 14:54:33,547 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:33,547 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:33,548 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-12-02 14:54:33,550 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [103], [107], [111], [114], [119], [125], [127], [130], [132], [135], [150], [151], [174], [175], [216], [223], [226], [234], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [287], [299], [300], [303], [304], [305], [306], [323], [324], [325], [326], [327] [2018-12-02 14:54:33,582 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:33,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:33,967 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 14:54:33,968 INFO L272 AbstractInterpreter]: Visited 65 different actions 139 times. Merged at 13 different actions 19 times. Never widened. Performed 4981 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4981 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-02 14:54:33,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:33,973 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 14:54:34,190 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 98.37% of their original sizes. [2018-12-02 14:54:34,190 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 14:54:34,249 INFO L418 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2018-12-02 14:54:34,249 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 14:54:34,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 14:54:34,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-12-02 14:54:34,250 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:34,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 14:54:34,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 14:54:34,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-02 14:54:34,251 INFO L87 Difference]: Start difference. First operand 1041 states and 1298 transitions. Second operand 11 states. [2018-12-02 14:54:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:35,577 INFO L93 Difference]: Finished difference Result 1429 states and 1813 transitions. [2018-12-02 14:54:35,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 14:54:35,578 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2018-12-02 14:54:35,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:35,580 INFO L225 Difference]: With dead ends: 1429 [2018-12-02 14:54:35,580 INFO L226 Difference]: Without dead ends: 642 [2018-12-02 14:54:35,582 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2018-12-02 14:54:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2018-12-02 14:54:35,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 608. [2018-12-02 14:54:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-12-02 14:54:35,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 737 transitions. [2018-12-02 14:54:35,608 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 737 transitions. Word has length 88 [2018-12-02 14:54:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:35,608 INFO L480 AbstractCegarLoop]: Abstraction has 608 states and 737 transitions. [2018-12-02 14:54:35,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 14:54:35,609 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 737 transitions. [2018-12-02 14:54:35,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-12-02 14:54:35,611 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:35,612 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, 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, 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] [2018-12-02 14:54:35,612 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:35,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:35,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1324421955, now seen corresponding path program 1 times [2018-12-02 14:54:35,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:35,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:35,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:35,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:35,613 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-02 14:54:35,696 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:35,696 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:35,696 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-12-02 14:54:35,696 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [59], [62], [64], [65], [68], [71], [73], [74], [89], [92], [94], [103], [107], [111], [114], [119], [125], [127], [130], [146], [147], [150], [151], [152], [154], [159], [162], [163], [165], [168], [172], [173], [174], [175], [183], [184], [216], [220], [226], [234], [238], [241], [243], [246], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [287], [289], [290], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332] [2018-12-02 14:54:35,699 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:35,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:35,781 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 14:54:35,781 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 2047 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2047 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 14:54:35,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:35,787 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 14:54:35,898 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.59% of their original sizes. [2018-12-02 14:54:35,899 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 14:54:35,930 INFO L418 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2018-12-02 14:54:35,930 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 14:54:35,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 14:54:35,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-02 14:54:35,930 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:35,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 14:54:35,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 14:54:35,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:54:35,931 INFO L87 Difference]: Start difference. First operand 608 states and 737 transitions. Second operand 9 states. [2018-12-02 14:54:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:36,548 INFO L93 Difference]: Finished difference Result 1401 states and 1743 transitions. [2018-12-02 14:54:36,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:54:36,548 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2018-12-02 14:54:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:36,550 INFO L225 Difference]: With dead ends: 1401 [2018-12-02 14:54:36,550 INFO L226 Difference]: Without dead ends: 817 [2018-12-02 14:54:36,551 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:54:36,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2018-12-02 14:54:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 789. [2018-12-02 14:54:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2018-12-02 14:54:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 950 transitions. [2018-12-02 14:54:36,574 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 950 transitions. Word has length 168 [2018-12-02 14:54:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:36,574 INFO L480 AbstractCegarLoop]: Abstraction has 789 states and 950 transitions. [2018-12-02 14:54:36,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 14:54:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 950 transitions. [2018-12-02 14:54:36,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-02 14:54:36,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:36,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:54:36,576 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:36,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:36,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1192383381, now seen corresponding path program 1 times [2018-12-02 14:54:36,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:36,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:36,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:36,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:36,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 14:54:36,621 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:36,622 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:36,622 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-02 14:54:36,622 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-12-02 14:54:36,625 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:36,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:36,786 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 14:54:36,786 INFO L272 AbstractInterpreter]: Visited 63 different actions 84 times. Merged at 5 different actions 5 times. Never widened. Performed 4639 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4639 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 14:54:36,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:36,788 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 14:54:36,905 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.66% of their original sizes. [2018-12-02 14:54:36,905 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 14:54:36,990 INFO L418 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2018-12-02 14:54:36,990 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 14:54:36,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 14:54:36,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 20 [2018-12-02 14:54:36,991 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:36,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-02 14:54:36,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-02 14:54:36,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2018-12-02 14:54:36,991 INFO L87 Difference]: Start difference. First operand 789 states and 950 transitions. Second operand 17 states. [2018-12-02 14:54:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:39,354 INFO L93 Difference]: Finished difference Result 2739 states and 3600 transitions. [2018-12-02 14:54:39,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 14:54:39,355 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 151 [2018-12-02 14:54:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:39,359 INFO L225 Difference]: With dead ends: 2739 [2018-12-02 14:54:39,359 INFO L226 Difference]: Without dead ends: 2044 [2018-12-02 14:54:39,361 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2018-12-02 14:54:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2018-12-02 14:54:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1932. [2018-12-02 14:54:39,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2018-12-02 14:54:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2380 transitions. [2018-12-02 14:54:39,421 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2380 transitions. Word has length 151 [2018-12-02 14:54:39,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:39,421 INFO L480 AbstractCegarLoop]: Abstraction has 1932 states and 2380 transitions. [2018-12-02 14:54:39,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-02 14:54:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2380 transitions. [2018-12-02 14:54:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-02 14:54:39,424 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:39,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:54:39,424 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:39,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:39,425 INFO L82 PathProgramCache]: Analyzing trace with hash -2052698540, now seen corresponding path program 1 times [2018-12-02 14:54:39,425 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:39,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:39,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:39,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:39,425 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 14:54:39,468 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:39,468 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:39,468 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-02 14:54:39,469 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [122], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [172], [173], [174], [175], [180], [182], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [301], [302], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-12-02 14:54:39,470 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:39,470 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:39,611 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 14:54:39,611 INFO L272 AbstractInterpreter]: Visited 63 different actions 91 times. Merged at 3 different actions 3 times. Never widened. Performed 4650 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 14:54:39,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:39,612 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 14:54:39,716 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-02 14:54:39,716 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 14:54:39,796 INFO L418 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2018-12-02 14:54:39,796 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 14:54:39,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 14:54:39,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-12-02 14:54:39,796 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:39,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-02 14:54:39,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-02 14:54:39,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-12-02 14:54:39,797 INFO L87 Difference]: Start difference. First operand 1932 states and 2380 transitions. Second operand 18 states. [2018-12-02 14:54:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:41,352 INFO L93 Difference]: Finished difference Result 3463 states and 4288 transitions. [2018-12-02 14:54:41,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-02 14:54:41,352 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 151 [2018-12-02 14:54:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:41,356 INFO L225 Difference]: With dead ends: 3463 [2018-12-02 14:54:41,357 INFO L226 Difference]: Without dead ends: 1555 [2018-12-02 14:54:41,360 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 165 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=199, Invalid=857, Unknown=0, NotChecked=0, Total=1056 [2018-12-02 14:54:41,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2018-12-02 14:54:41,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2018-12-02 14:54:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1555 states. [2018-12-02 14:54:41,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1903 transitions. [2018-12-02 14:54:41,426 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1903 transitions. Word has length 151 [2018-12-02 14:54:41,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:41,427 INFO L480 AbstractCegarLoop]: Abstraction has 1555 states and 1903 transitions. [2018-12-02 14:54:41,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-02 14:54:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1903 transitions. [2018-12-02 14:54:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-02 14:54:41,429 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:41,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:54:41,430 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:41,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:41,430 INFO L82 PathProgramCache]: Analyzing trace with hash -714019885, now seen corresponding path program 1 times [2018-12-02 14:54:41,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:41,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:41,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:41,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:41,431 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:41,515 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 14:54:41,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:41,515 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:41,515 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-02 14:54:41,516 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-12-02 14:54:41,517 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:41,517 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:42,080 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 14:54:42,080 INFO L272 AbstractInterpreter]: Visited 129 different actions 590 times. Merged at 15 different actions 42 times. Never widened. Performed 18649 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18649 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-02 14:54:42,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:42,083 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 14:54:42,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:42,084 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 14:54:42,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:42,090 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 14:54:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:42,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:54:42,260 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:54:42,260 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 14:54:42,468 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 14:54:42,494 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 14:54:42,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-02 14:54:42,494 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 14:54:42,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 14:54:42,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 14:54:42,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-02 14:54:42,495 INFO L87 Difference]: Start difference. First operand 1555 states and 1903 transitions. Second operand 14 states. [2018-12-02 14:54:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:43,613 INFO L93 Difference]: Finished difference Result 3049 states and 4220 transitions. [2018-12-02 14:54:43,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 14:54:43,613 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2018-12-02 14:54:43,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:43,620 INFO L225 Difference]: With dead ends: 3049 [2018-12-02 14:54:43,620 INFO L226 Difference]: Without dead ends: 1797 [2018-12-02 14:54:43,623 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 297 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 14:54:43,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2018-12-02 14:54:43,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1417. [2018-12-02 14:54:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1417 states. [2018-12-02 14:54:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1714 transitions. [2018-12-02 14:54:43,690 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1714 transitions. Word has length 151 [2018-12-02 14:54:43,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:43,691 INFO L480 AbstractCegarLoop]: Abstraction has 1417 states and 1714 transitions. [2018-12-02 14:54:43,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 14:54:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1714 transitions. [2018-12-02 14:54:43,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-12-02 14:54:43,696 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:43,696 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, 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] [2018-12-02 14:54:43,696 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:43,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:43,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1781892361, now seen corresponding path program 1 times [2018-12-02 14:54:43,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:43,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:43,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:43,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:43,697 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-02 14:54:43,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:43,798 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:43,798 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-12-02 14:54:43,798 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-12-02 14:54:43,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:43,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:44,427 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 14:54:44,427 INFO L272 AbstractInterpreter]: Visited 130 different actions 602 times. Merged at 18 different actions 51 times. Never widened. Performed 18939 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18939 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 14:54:44,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:44,428 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 14:54:44,428 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:44,428 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 14:54:44,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:44,434 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 14:54:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:44,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:54:44,546 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-02 14:54:44,546 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 14:54:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-02 14:54:44,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 14:54:44,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-02 14:54:44,728 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:44,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:54:44,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:54:44,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-02 14:54:44,728 INFO L87 Difference]: Start difference. First operand 1417 states and 1714 transitions. Second operand 6 states. [2018-12-02 14:54:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:44,783 INFO L93 Difference]: Finished difference Result 2507 states and 3110 transitions. [2018-12-02 14:54:44,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 14:54:44,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2018-12-02 14:54:44,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:44,788 INFO L225 Difference]: With dead ends: 2507 [2018-12-02 14:54:44,788 INFO L226 Difference]: Without dead ends: 1395 [2018-12-02 14:54:44,791 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 403 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-02 14:54:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2018-12-02 14:54:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1395. [2018-12-02 14:54:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2018-12-02 14:54:44,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1675 transitions. [2018-12-02 14:54:44,857 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1675 transitions. Word has length 204 [2018-12-02 14:54:44,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:44,857 INFO L480 AbstractCegarLoop]: Abstraction has 1395 states and 1675 transitions. [2018-12-02 14:54:44,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:54:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1675 transitions. [2018-12-02 14:54:44,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-02 14:54:44,860 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:44,860 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, 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, 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] [2018-12-02 14:54:44,861 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:44,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:44,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1448762654, now seen corresponding path program 1 times [2018-12-02 14:54:44,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:44,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:44,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:44,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:44,861 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:44,933 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 50 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-02 14:54:44,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:44,934 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:44,934 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-12-02 14:54:44,934 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-12-02 14:54:44,935 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:44,935 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:45,614 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 14:54:45,614 INFO L272 AbstractInterpreter]: Visited 131 different actions 708 times. Merged at 25 different actions 128 times. Never widened. Performed 19144 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19144 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 14:54:45,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:45,615 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 14:54:45,615 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:45,615 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 14:54:45,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:45,621 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 14:54:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:45,684 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:54:45,716 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 75 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-02 14:54:45,716 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 14:54:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 50 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-02 14:54:45,900 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 14:54:45,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-12-02 14:54:45,900 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 14:54:45,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 14:54:45,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 14:54:45,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-12-02 14:54:45,901 INFO L87 Difference]: Start difference. First operand 1395 states and 1675 transitions. Second operand 12 states. [2018-12-02 14:54:46,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:46,279 INFO L93 Difference]: Finished difference Result 2736 states and 3346 transitions. [2018-12-02 14:54:46,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 14:54:46,279 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 221 [2018-12-02 14:54:46,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:46,282 INFO L225 Difference]: With dead ends: 2736 [2018-12-02 14:54:46,282 INFO L226 Difference]: Without dead ends: 1534 [2018-12-02 14:54:46,283 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 442 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-12-02 14:54:46,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2018-12-02 14:54:46,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1436. [2018-12-02 14:54:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-12-02 14:54:46,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1644 transitions. [2018-12-02 14:54:46,332 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1644 transitions. Word has length 221 [2018-12-02 14:54:46,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:46,332 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 1644 transitions. [2018-12-02 14:54:46,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 14:54:46,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1644 transitions. [2018-12-02 14:54:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-12-02 14:54:46,335 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:46,336 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-12-02 14:54:46,336 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:46,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:46,336 INFO L82 PathProgramCache]: Analyzing trace with hash -489025161, now seen corresponding path program 1 times [2018-12-02 14:54:46,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:46,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:46,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:46,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:46,337 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-12-02 14:54:46,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:46,405 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:46,405 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-12-02 14:54:46,405 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-12-02 14:54:46,406 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:46,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:47,271 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 14:54:47,271 INFO L272 AbstractInterpreter]: Visited 137 different actions 840 times. Merged at 32 different actions 158 times. Never widened. Performed 25953 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25953 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 21 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-02 14:54:47,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:47,273 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 14:54:47,273 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:47,273 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 14:54:47,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:47,279 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 14:54:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:47,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:54:47,381 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-12-02 14:54:47,381 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 14:54:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-12-02 14:54:47,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 14:54:47,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-02 14:54:47,637 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:47,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:54:47,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:54:47,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:54:47,638 INFO L87 Difference]: Start difference. First operand 1436 states and 1644 transitions. Second operand 6 states. [2018-12-02 14:54:47,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:47,693 INFO L93 Difference]: Finished difference Result 2621 states and 3109 transitions. [2018-12-02 14:54:47,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 14:54:47,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 266 [2018-12-02 14:54:47,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:47,696 INFO L225 Difference]: With dead ends: 2621 [2018-12-02 14:54:47,697 INFO L226 Difference]: Without dead ends: 1489 [2018-12-02 14:54:47,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 529 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 14:54:47,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-12-02 14:54:47,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1471. [2018-12-02 14:54:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1471 states. [2018-12-02 14:54:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1684 transitions. [2018-12-02 14:54:47,745 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1684 transitions. Word has length 266 [2018-12-02 14:54:47,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:47,745 INFO L480 AbstractCegarLoop]: Abstraction has 1471 states and 1684 transitions. [2018-12-02 14:54:47,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:54:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1684 transitions. [2018-12-02 14:54:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-12-02 14:54:47,748 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:54:47,748 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-12-02 14:54:47,748 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:54:47,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:47,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1899538869, now seen corresponding path program 1 times [2018-12-02 14:54:47,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:54:47,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:47,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:47,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:54:47,749 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:54:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-12-02 14:54:47,818 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:47,819 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 14:54:47,819 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-12-02 14:54:47,819 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-12-02 14:54:47,820 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 14:54:47,820 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 14:54:48,722 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 14:54:48,722 INFO L272 AbstractInterpreter]: Visited 136 different actions 783 times. Merged at 26 different actions 103 times. Never widened. Performed 28802 root evaluator evaluations with a maximum evaluation depth of 5. Performed 28802 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 14:54:48,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:54:48,723 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 14:54:48,723 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 14:54:48,723 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 14:54:48,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:54:48,730 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 14:54:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:54:48,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:54:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-02 14:54:48,835 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 14:54:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-12-02 14:54:49,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 14:54:49,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-02 14:54:49,082 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:54:49,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 14:54:49,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 14:54:49,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 14:54:49,082 INFO L87 Difference]: Start difference. First operand 1471 states and 1684 transitions. Second operand 5 states. [2018-12-02 14:54:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:54:49,118 INFO L93 Difference]: Finished difference Result 2107 states and 2453 transitions. [2018-12-02 14:54:49,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 14:54:49,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2018-12-02 14:54:49,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:54:49,119 INFO L225 Difference]: With dead ends: 2107 [2018-12-02 14:54:49,119 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 14:54:49,122 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 529 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 14:54:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 14:54:49,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 14:54:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 14:54:49,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 14:54:49,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 266 [2018-12-02 14:54:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:54:49,124 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 14:54:49,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 14:54:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 14:54:49,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 14:54:49,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 14:54:49,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,497 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,593 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:54:49,882 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 18 [2018-12-02 14:54:50,248 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 30 [2018-12-02 14:54:50,477 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 41 [2018-12-02 14:54:50,745 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 36 [2018-12-02 14:54:50,979 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 32 [2018-12-02 14:54:51,226 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 28 [2018-12-02 14:54:51,874 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 52 [2018-12-02 14:54:52,037 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 24 [2018-12-02 14:54:52,335 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 30 [2018-12-02 14:54:52,660 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-12-02 14:54:52,660 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-12-02 14:54:52,660 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-12-02 14:54:52,660 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-12-02 14:54:52,660 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L444 ceAbstractionStarter]: At program point L95(line 95) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= ~systemActive~0 0))))) [2018-12-02 14:54:52,661 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 81 105) the Hoare annotation is: true [2018-12-02 14:54:52,661 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 99) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L444 ceAbstractionStarter]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse0 (not (= ~systemActive~0 0)) (= ~waterLevel~0 0)) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1))) [2018-12-02 14:54:52,661 INFO L448 ceAbstractionStarter]: For program point L91-1(line 91) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L448 ceAbstractionStarter]: For program point L89(lines 89 102) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 81 105) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L451 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: true [2018-12-02 14:54:52,661 INFO L448 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 81 105) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 489 511) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,661 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 489 511) no Hoare annotation was computed. [2018-12-02 14:54:52,661 INFO L444 ceAbstractionStarter]: At program point L501(line 501) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,661 INFO L444 ceAbstractionStarter]: At program point L501-1(line 501) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 506) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 499 506) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L444 ceAbstractionStarter]: At program point L496(line 496) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,662 INFO L444 ceAbstractionStarter]: At program point L495(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,662 INFO L444 ceAbstractionStarter]: At program point L495-1(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 489 511) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 401 415) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L444 ceAbstractionStarter]: At program point L407(line 407) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (not (= 0 |old(~pumpRunning~0)|)) (or (or (= |old(~systemActive~0)| 0) (not (= ~waterLevel~0 1))) (and (not (= ~systemActive~0 0)) .cse0)) (or (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1))))) [2018-12-02 14:54:52,662 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 401 415) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~systemActive~0)| 0)) (.cse2 (= ~systemActive~0 0)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not .cse0) .cse1 .cse2) (or .cse1 .cse3) (or (or .cse0 (not (= ~waterLevel~0 1))) (and (not .cse2) .cse3)) (or (and (= ~systemActive~0 1) .cse3) (not (= |old(~systemActive~0)| 1))))) [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point L405(lines 405 411) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 401 415) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 318 326) no Hoare annotation was computed. [2018-12-02 14:54:52,662 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 318 326) the Hoare annotation is: true [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 318 326) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 382 400) the Hoare annotation is: true [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 395) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 382 400) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L451 ceAbstractionStarter]: At program point L389(line 389) the Hoare annotation is: true [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 391 395) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point L389-1(line 389) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 382 400) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-12-02 14:54:52,663 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 479 488) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 479 488) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 479 488) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 307 317) the Hoare annotation is: true [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 307 317) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L451 ceAbstractionStarter]: At program point L312(line 312) the Hoare annotation is: true [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point L312-1(line 312) no Hoare annotation was computed. [2018-12-02 14:54:52,663 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 307 317) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 299 306) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= ~systemActive~0 1))) (or (or (= ~systemActive~0 0) (not (= ~waterLevel~0 1))) .cse0))) [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 299 306) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 299 306) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 592 605) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point L596(lines 596 602) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 592 605) the Hoare annotation is: true [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 592 605) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 264) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L444 ceAbstractionStarter]: At program point L254(line 254) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 1) (not (= 1 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0) (or .cse1 (< ~waterLevel~0 2) .cse0) (or (or .cse1 (not (= ~waterLevel~0 1))) .cse0))) [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point L254-1(line 254) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 269) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 248 272) no Hoare annotation was computed. [2018-12-02 14:54:52,664 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 248 272) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse2 .cse1))) [2018-12-02 14:54:52,664 INFO L444 ceAbstractionStarter]: At program point L267(line 267) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-12-02 14:54:52,664 INFO L448 ceAbstractionStarter]: For program point L267-1(lines 248 272) no Hoare annotation was computed. [2018-12-02 14:54:52,665 INFO L444 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0) (or .cse1 (< ~waterLevel~0 2) .cse0) (or (or .cse1 (not (= ~waterLevel~0 1))) .cse0))) [2018-12-02 14:54:52,665 INFO L444 ceAbstractionStarter]: At program point L258(line 258) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or (< ~waterLevel~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse1 (and (<= 1 processEnvironment_~tmp~3) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (or .cse0 (not (= ~waterLevel~0 1))) .cse1))) [2018-12-02 14:54:52,665 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 214 220) no Hoare annotation was computed. [2018-12-02 14:54:52,665 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 214 220) the Hoare annotation is: true [2018-12-02 14:54:52,665 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 112 177) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,665 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 128) no Hoare annotation was computed. [2018-12-02 14:54:52,665 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 112 177) no Hoare annotation was computed. [2018-12-02 14:54:52,665 INFO L444 ceAbstractionStarter]: At program point L170(lines 121 171) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 14:54:52,665 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0) (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 1) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 14:54:52,665 INFO L448 ceAbstractionStarter]: For program point L158(lines 158 164) no Hoare annotation was computed. [2018-12-02 14:54:52,665 INFO L444 ceAbstractionStarter]: At program point L158-1(lines 152 165) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse1 .cse2) (and (= ~systemActive~0 0) .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 14:54:52,665 INFO L448 ceAbstractionStarter]: For program point L123(lines 122 169) no Hoare annotation was computed. [2018-12-02 14:54:52,665 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 165) no Hoare annotation was computed. [2018-12-02 14:54:52,665 INFO L444 ceAbstractionStarter]: At program point L144(line 144) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse1 .cse2) (and (= ~systemActive~0 0) .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point L142(lines 142 148) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L444 ceAbstractionStarter]: At program point L167(lines 122 169) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse1 .cse2) (and (= ~systemActive~0 0) .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 14:54:52,666 INFO L444 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~waterLevel~0) .cse2 .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point L132(lines 132 138) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 112 177) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 273 280) the Hoare annotation is: (or (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 273 280) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 273 280) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 606 614) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 606 614) the Hoare annotation is: true [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 606 614) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 14:54:52,666 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 14:54:52,666 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point L289(lines 289 295) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L444 ceAbstractionStarter]: At program point L287(line 287) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point L287-1(line 287) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 282 298) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 282 298) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-02 14:54:52,667 INFO L444 ceAbstractionStarter]: At program point L293(line 293) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point L293-1(lines 282 298) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point L370-1(line 370) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 363 381) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 363 381) the Hoare annotation is: true [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 363 381) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 376) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L451 ceAbstractionStarter]: At program point L370(line 370) the Hoare annotation is: true [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point L372-2(lines 372 376) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 583 591) the Hoare annotation is: true [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 583 591) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 583 591) no Hoare annotation was computed. [2018-12-02 14:54:52,667 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 539 550) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 539 550) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse4 (not (= ~waterLevel~0 1))) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (not (= ~waterLevel~0 2)))) (and (or (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2)) .cse5) (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse4) (or .cse5 (not (= 1 ~pumpRunning~0)) (or .cse1 .cse2 .cse3)))) [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 539 550) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 551 559) the Hoare annotation is: true [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 551 559) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 551 559) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2018-12-02 14:54:52,668 INFO L451 ceAbstractionStarter]: At program point L443(lines 418 447) the Hoare annotation is: true [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 436) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L451 ceAbstractionStarter]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point L429(line 429) no Hoare annotation was computed. [2018-12-02 14:54:52,668 INFO L451 ceAbstractionStarter]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2018-12-02 14:54:52,668 INFO L451 ceAbstractionStarter]: At program point L424(line 424) the Hoare annotation is: true [2018-12-02 14:54:52,668 INFO L448 ceAbstractionStarter]: For program point L424-1(line 424) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 190 213) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (.cse4 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse4)) (or .cse3 .cse0 (< |old(~waterLevel~0)| 1) .cse4) (or .cse0 .cse1 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)) (or .cse0 .cse1 (= ~waterLevel~0 1) (not (= |old(~waterLevel~0)| 1)))))) [2018-12-02 14:54:52,669 INFO L444 ceAbstractionStarter]: At program point L203(line 203) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (or .cse0 (not (= ~systemActive~0 0))) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) .cse3 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (or .cse3 .cse1 (not (= ~methaneLevelCritical~0 0)) (not (= |old(~waterLevel~0)| 2))) (or (= ~waterLevel~0 2) (= ~waterLevel~0 1))))) [2018-12-02 14:54:52,669 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 190 213) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L444 ceAbstractionStarter]: At program point L201(lines 201 207) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 0))) (.cse5 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse3) (< |old(~waterLevel~0)| 1) .cse4 (and .cse3 .cse2))) (or (or .cse5 (= ~waterLevel~0 2)) (or .cse6 .cse4 (not (= ~methaneLevelCritical~0 0)) (not (= |old(~waterLevel~0)| 2)))) (or .cse0 .cse1 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)) (or .cse6 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (= ~pumpRunning~0 0)) (or (< |old(~waterLevel~0)| 2) .cse4)) (or .cse0 .cse1 .cse5 (not (= |old(~waterLevel~0)| 1))))) [2018-12-02 14:54:52,669 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 190 213) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L444 ceAbstractionStarter]: At program point L196(line 196) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 (< |old(~waterLevel~0)| 1) .cse0))) [2018-12-02 14:54:52,669 INFO L448 ceAbstractionStarter]: For program point L194(lines 193 212) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 515 526) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= 1 ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-12-02 14:54:52,669 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 515 526) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 515 526) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 472 478) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 472 478) the Hoare annotation is: true [2018-12-02 14:54:52,669 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 14:54:52,669 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-02 14:54:52,670 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 222 246) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 222 246) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L444 ceAbstractionStarter]: At program point L241(line 241) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or (or .cse0 (not (= ~waterLevel~0 1))) .cse1))) [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point L241-1(lines 222 246) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L444 ceAbstractionStarter]: At program point L236(line 236) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or .cse1 (not (= ~waterLevel~0 1))) .cse2) (or (or .cse1 (< ~waterLevel~0 2) .cse2) .cse0))) [2018-12-02 14:54:52,670 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (or (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point L230(lines 230 238) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point L228-1(line 228) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point L226(lines 226 243) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 527 538) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 527 538) the Hoare annotation is: (let ((.cse5 (not (= 0 ~pumpRunning~0))) (.cse4 (not (= ~systemActive~0 1)))) (let ((.cse1 (or .cse5 .cse4)) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or (or .cse1 .cse3) .cse2) (or .cse2 .cse4 .cse0 (not (= 1 ~pumpRunning~0))) (or .cse5 (not (= ~systemActive~0 0)) (= ~waterLevel~0 1) .cse3)))) [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 527 538) no Hoare annotation was computed. [2018-12-02 14:54:52,670 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 616 623) no Hoare annotation was computed. [2018-12-02 14:54:52,671 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 616 623) the Hoare annotation is: true [2018-12-02 14:54:52,671 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 620) no Hoare annotation was computed. [2018-12-02 14:54:52,671 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 616 623) no Hoare annotation was computed. [2018-12-02 14:54:52,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:54:52 BoogieIcfgContainer [2018-12-02 14:54:52,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 14:54:52,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:54:52,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:54:52,680 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:54:52,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:54:31" (3/4) ... [2018-12-02 14:54:52,684 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 14:54:52,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 14:54:52,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 14:54:52,693 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-12-02 14:54:52,694 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-02 14:54:52,694 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 14:54:52,694 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 14:54:52,694 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 14:54:52,694 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 14:54:52,711 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= waterLevel && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || ((systemActive == 0 && pumpRunning == 0) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 14:54:52,711 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 14:54:52,735 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0db89015-941d-4619-b38f-dee10af4b709/bin-2019/utaipan/witness.graphml [2018-12-02 14:54:52,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:54:52,735 INFO L168 Benchmark]: Toolchain (without parser) took 21576.50 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 947.0 MB in the beginning and 1.6 GB in the end (delta: -612.7 MB). Peak memory consumption was 555.4 MB. Max. memory is 11.5 GB. [2018-12-02 14:54:52,735 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:54:52,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-12-02 14:54:52,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:54:52,736 INFO L168 Benchmark]: Boogie Preprocessor took 21.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 14:54:52,736 INFO L168 Benchmark]: RCFGBuilder took 343.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. [2018-12-02 14:54:52,736 INFO L168 Benchmark]: TraceAbstraction took 20842.46 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -484.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-12-02 14:54:52,736 INFO L168 Benchmark]: Witness Printer took 54.46 ms. Allocated memory is still 2.2 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 48.2 kB). Peak memory consumption was 48.2 kB. Max. memory is 11.5 GB. [2018-12-02 14:54:52,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 343.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20842.46 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -484.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 54.46 ms. Allocated memory is still 2.2 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 48.2 kB). Peak memory consumption was 48.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 620]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((((((1 <= waterLevel && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || ((systemActive == 0 && pumpRunning == 0) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 162 locations, 1 error locations. SAFE Result, 20.7s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 8.5s AutomataDifference, 0.0s DeadEndRemovalTime, 3.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 2748 SDtfs, 3957 SDslu, 8793 SDs, 0 SdLazy, 5203 SolverSat, 1583 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2933 GetRequests, 2729 SyntacticMatches, 21 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1932occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.4s AbstIntTime, 9 AbstIntIterations, 4 AbstIntStrong, 0.9979543584025933 AbsIntWeakeningRatio, 0.8989169675090253 AbsIntAvgWeakeningVarsNumRemoved, 43.02888086642599 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 825 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 67 LocationsWithAnnotation, 5062 PreInvPairs, 5224 NumberOfFragments, 1623 HoareAnnotationTreeSize, 5062 FomulaSimplifications, 33426 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 67 FomulaSimplificationsInter, 31477 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3036 NumberOfCodeBlocks, 3036 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 4120 ConstructedInterpolants, 0 QuantifiedInterpolants, 1018356 SizeOfPredicates, 17 NumberOfNonLiveVariables, 5131 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 24 InterpolantComputations, 8 PerfectInterpolantSequences, 2116/2248 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...