./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product62_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_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/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 ce17648ffa5822f201dca35a60378555aafbd885 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:02:37,806 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:02:37,807 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:02:37,813 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:02:37,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:02:37,814 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:02:37,814 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:02:37,815 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:02:37,816 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:02:37,816 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:02:37,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:02:37,817 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:02:37,817 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:02:37,818 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:02:37,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:02:37,819 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:02:37,819 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:02:37,820 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:02:37,821 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:02:37,822 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:02:37,823 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:02:37,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:02:37,824 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:02:37,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:02:37,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:02:37,825 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:02:37,826 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:02:37,826 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:02:37,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:02:37,827 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:02:37,827 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:02:37,827 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:02:37,828 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:02:37,828 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:02:37,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:02:37,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:02:37,829 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 08:02:37,836 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:02:37,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:02:37,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:02:37,837 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:02:37,837 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 08:02:37,837 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 08:02:37,837 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 08:02:37,837 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 08:02:37,837 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 08:02:37,837 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 08:02:37,838 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 08:02:37,838 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 08:02:37,838 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 08:02:37,838 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:02:37,838 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:02:37,839 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 08:02:37,840 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 08:02:37,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:02:37,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:02:37,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:02:37,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:02:37,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:02:37,840 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:02:37,841 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:02:37,841 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 08:02:37,841 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 08:02:37,841 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:02:37,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 08:02:37,841 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 08:02:37,841 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_23c414bd-ea6b-442c-b691-d4ad8ce92491/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 -> ce17648ffa5822f201dca35a60378555aafbd885 [2018-12-02 08:02:37,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:02:37,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:02:37,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:02:37,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:02:37,872 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:02:37,873 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product62_true-unreach-call_false-termination.cil.c [2018-12-02 08:02:37,913 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/data/87e79e891/e15c91a974c9480cbd216a31507e9021/FLAGaa0d5d7d8 [2018-12-02 08:02:38,352 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:02:38,352 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/sv-benchmarks/c/product-lines/minepump_spec4_product62_true-unreach-call_false-termination.cil.c [2018-12-02 08:02:38,358 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/data/87e79e891/e15c91a974c9480cbd216a31507e9021/FLAGaa0d5d7d8 [2018-12-02 08:02:38,367 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/data/87e79e891/e15c91a974c9480cbd216a31507e9021 [2018-12-02 08:02:38,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:02:38,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 08:02:38,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:02:38,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:02:38,372 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:02:38,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38, skipping insertion in model container [2018-12-02 08:02:38,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:02:38,400 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:02:38,550 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:02:38,592 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:02:38,646 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:02:38,662 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:02:38,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38 WrapperNode [2018-12-02 08:02:38,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:02:38,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 08:02:38,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 08:02:38,663 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 08:02:38,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 08:02:38,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:02:38,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:02:38,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:02:38,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... [2018-12-02 08:02:38,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:02:38,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:02:38,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:02:38,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:02:38,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/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 08:02:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 08:02:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 08:02:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 08:02:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 08:02:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:02:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:02:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 08:02:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 08:02:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 08:02:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 08:02:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 08:02:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 08:02:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 08:02:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 08:02:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 08:02:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 08:02:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 08:02:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 08:02:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 08:02:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 08:02:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 08:02:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 08:02:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 08:02:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 08:02:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 08:02:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 08:02:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 08:02:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 08:02:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 08:02:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 08:02:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:02:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:02:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 08:02:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 08:02:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 08:02:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 08:02:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:02:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:02:39,021 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:02:39,022 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 08:02:39,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:02:39 BoogieIcfgContainer [2018-12-02 08:02:39,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:02:39,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:02:39,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:02:39,024 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:02:39,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:02:38" (1/3) ... [2018-12-02 08:02:39,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79162b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:02:39, skipping insertion in model container [2018-12-02 08:02:39,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:38" (2/3) ... [2018-12-02 08:02:39,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79162b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:02:39, skipping insertion in model container [2018-12-02 08:02:39,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:02:39" (3/3) ... [2018-12-02 08:02:39,027 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62_true-unreach-call_false-termination.cil.c [2018-12-02 08:02:39,035 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:02:39,040 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 08:02:39,053 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 08:02:39,078 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:02:39,078 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 08:02:39,078 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:02:39,078 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:02:39,078 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:02:39,078 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:02:39,078 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:02:39,078 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:02:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2018-12-02 08:02:39,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 08:02:39,097 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:39,098 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 08:02:39,100 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:39,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:39,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1707468692, now seen corresponding path program 1 times [2018-12-02 08:02:39,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:39,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:39,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,134 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:39,244 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 08:02:39,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:39,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 08:02:39,246 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:39,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 08:02:39,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 08:02:39,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:02:39,258 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2018-12-02 08:02:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:39,282 INFO L93 Difference]: Finished difference Result 314 states and 387 transitions. [2018-12-02 08:02:39,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 08:02:39,283 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 08:02:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:39,290 INFO L225 Difference]: With dead ends: 314 [2018-12-02 08:02:39,290 INFO L226 Difference]: Without dead ends: 157 [2018-12-02 08:02:39,292 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 08:02:39,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-12-02 08:02:39,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-12-02 08:02:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-12-02 08:02:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 185 transitions. [2018-12-02 08:02:39,325 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 185 transitions. Word has length 46 [2018-12-02 08:02:39,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:39,325 INFO L480 AbstractCegarLoop]: Abstraction has 157 states and 185 transitions. [2018-12-02 08:02:39,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 08:02:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 185 transitions. [2018-12-02 08:02:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 08:02:39,327 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:39,327 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 08:02:39,327 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:39,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:39,328 INFO L82 PathProgramCache]: Analyzing trace with hash -714026924, now seen corresponding path program 1 times [2018-12-02 08:02:39,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:39,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:39,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,329 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:39,382 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 08:02:39,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:39,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 08:02:39,382 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:39,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 08:02:39,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 08:02:39,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:02:39,384 INFO L87 Difference]: Start difference. First operand 157 states and 185 transitions. Second operand 3 states. [2018-12-02 08:02:39,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:39,403 INFO L93 Difference]: Finished difference Result 259 states and 305 transitions. [2018-12-02 08:02:39,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 08:02:39,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 08:02:39,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:39,406 INFO L225 Difference]: With dead ends: 259 [2018-12-02 08:02:39,406 INFO L226 Difference]: Without dead ends: 148 [2018-12-02 08:02:39,407 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 08:02:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-02 08:02:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-12-02 08:02:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-12-02 08:02:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2018-12-02 08:02:39,419 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 47 [2018-12-02 08:02:39,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:39,419 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2018-12-02 08:02:39,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 08:02:39,420 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2018-12-02 08:02:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 08:02:39,421 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:39,421 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:02:39,421 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:39,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:39,421 INFO L82 PathProgramCache]: Analyzing trace with hash -418770940, now seen corresponding path program 1 times [2018-12-02 08:02:39,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:39,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:39,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,422 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:39,489 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 08:02:39,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:39,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 08:02:39,489 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:39,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 08:02:39,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 08:02:39,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:02:39,490 INFO L87 Difference]: Start difference. First operand 148 states and 173 transitions. Second operand 3 states. [2018-12-02 08:02:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:39,513 INFO L93 Difference]: Finished difference Result 272 states and 323 transitions. [2018-12-02 08:02:39,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 08:02:39,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-02 08:02:39,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:39,515 INFO L225 Difference]: With dead ends: 272 [2018-12-02 08:02:39,515 INFO L226 Difference]: Without dead ends: 148 [2018-12-02 08:02:39,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 08:02:39,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-02 08:02:39,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-12-02 08:02:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-12-02 08:02:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 172 transitions. [2018-12-02 08:02:39,524 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 172 transitions. Word has length 52 [2018-12-02 08:02:39,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:39,524 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 172 transitions. [2018-12-02 08:02:39,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 08:02:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 172 transitions. [2018-12-02 08:02:39,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-02 08:02:39,526 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:39,526 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:02:39,526 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:39,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:39,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1599970304, now seen corresponding path program 1 times [2018-12-02 08:02:39,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:39,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:39,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,528 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:39,579 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 08:02:39,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:39,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 08:02:39,580 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:39,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 08:02:39,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 08:02:39,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 08:02:39,581 INFO L87 Difference]: Start difference. First operand 148 states and 172 transitions. Second operand 5 states. [2018-12-02 08:02:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:39,933 INFO L93 Difference]: Finished difference Result 389 states and 466 transitions. [2018-12-02 08:02:39,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 08:02:39,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-12-02 08:02:39,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:39,935 INFO L225 Difference]: With dead ends: 389 [2018-12-02 08:02:39,935 INFO L226 Difference]: Without dead ends: 265 [2018-12-02 08:02:39,936 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 08:02:39,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-12-02 08:02:39,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 246. [2018-12-02 08:02:39,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-12-02 08:02:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 276 transitions. [2018-12-02 08:02:39,953 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 276 transitions. Word has length 70 [2018-12-02 08:02:39,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:39,954 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 276 transitions. [2018-12-02 08:02:39,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 08:02:39,954 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 276 transitions. [2018-12-02 08:02:39,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-02 08:02:39,955 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:39,956 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:02:39,956 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:39,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:39,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1641427357, now seen corresponding path program 1 times [2018-12-02 08:02:39,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:39,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:39,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:39,957 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:40,044 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 08:02:40,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:40,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 08:02:40,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:40,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 08:02:40,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 08:02:40,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 08:02:40,045 INFO L87 Difference]: Start difference. First operand 246 states and 276 transitions. Second operand 10 states. [2018-12-02 08:02:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:40,364 INFO L93 Difference]: Finished difference Result 803 states and 971 transitions. [2018-12-02 08:02:40,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 08:02:40,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-12-02 08:02:40,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:40,367 INFO L225 Difference]: With dead ends: 803 [2018-12-02 08:02:40,367 INFO L226 Difference]: Without dead ends: 581 [2018-12-02 08:02:40,368 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 08:02:40,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2018-12-02 08:02:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 571. [2018-12-02 08:02:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2018-12-02 08:02:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 660 transitions. [2018-12-02 08:02:40,395 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 660 transitions. Word has length 84 [2018-12-02 08:02:40,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:40,396 INFO L480 AbstractCegarLoop]: Abstraction has 571 states and 660 transitions. [2018-12-02 08:02:40,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 08:02:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 660 transitions. [2018-12-02 08:02:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-02 08:02:40,399 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:40,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:40,399 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:40,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:40,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1835233603, now seen corresponding path program 1 times [2018-12-02 08:02:40,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:40,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:40,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:40,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:40,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 08:02:40,447 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:40,447 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:02:40,447 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-12-02 08:02:40,449 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [180], [184], [185], [193], [194], [223], [226], [230], [236], [239], [243], [244], [248], [251], [253], [256], [266], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350] [2018-12-02 08:02:40,476 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:02:40,476 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:02:41,059 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:02:41,060 INFO L272 AbstractInterpreter]: Visited 115 different actions 276 times. Merged at 15 different actions 15 times. Never widened. Performed 8230 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8230 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 133 variables. [2018-12-02 08:02:41,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:41,074 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:02:41,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:41,075 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/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 08:02:41,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:41,081 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:02:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:41,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:02:41,191 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 08:02:41,191 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:02:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 08:02:41,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:02:41,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-02 08:02:41,423 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:41,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:02:41,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:02:41,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:02:41,424 INFO L87 Difference]: Start difference. First operand 571 states and 660 transitions. Second operand 6 states. [2018-12-02 08:02:41,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:41,473 INFO L93 Difference]: Finished difference Result 1139 states and 1362 transitions. [2018-12-02 08:02:41,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 08:02:41,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-12-02 08:02:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:41,476 INFO L225 Difference]: With dead ends: 1139 [2018-12-02 08:02:41,476 INFO L226 Difference]: Without dead ends: 592 [2018-12-02 08:02:41,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 293 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 08:02:41,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-12-02 08:02:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 586. [2018-12-02 08:02:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2018-12-02 08:02:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 676 transitions. [2018-12-02 08:02:41,506 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 676 transitions. Word has length 148 [2018-12-02 08:02:41,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:41,507 INFO L480 AbstractCegarLoop]: Abstraction has 586 states and 676 transitions. [2018-12-02 08:02:41,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:02:41,507 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 676 transitions. [2018-12-02 08:02:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-12-02 08:02:41,510 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:41,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:41,511 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:41,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:41,511 INFO L82 PathProgramCache]: Analyzing trace with hash -565316174, now seen corresponding path program 1 times [2018-12-02 08:02:41,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:41,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:41,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:41,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:41,511 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-02 08:02:41,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:41,608 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:02:41,608 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-12-02 08:02:41,608 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [78], [81], [83], [84], [99], [102], [103], [104], [113], [117], [121], [124], [129], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [180], [182], [184], [185], [193], [194], [226], [230], [236], [244], [248], [251], [253], [256], [259], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [315], [316], [317], [318], [323], [324], [327], [328], [329], [330], [331], [332], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350], [351], [352] [2018-12-02 08:02:41,611 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:02:41,611 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:02:41,706 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 08:02:41,707 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 2181 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2181 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-02 08:02:41,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:41,708 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 08:02:41,874 INFO L227 lantSequenceWeakener]: Weakened 82 states. On average, predicates are now at 96.88% of their original sizes. [2018-12-02 08:02:41,874 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 08:02:41,918 INFO L418 sIntCurrentIteration]: We unified 163 AI predicates to 163 [2018-12-02 08:02:41,918 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 08:02:41,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 08:02:41,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-12-02 08:02:41,919 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:41,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 08:02:41,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 08:02:41,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-02 08:02:41,920 INFO L87 Difference]: Start difference. First operand 586 states and 676 transitions. Second operand 11 states. [2018-12-02 08:02:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:43,524 INFO L93 Difference]: Finished difference Result 1562 states and 1860 transitions. [2018-12-02 08:02:43,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 08:02:43,524 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 164 [2018-12-02 08:02:43,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:43,526 INFO L225 Difference]: With dead ends: 1562 [2018-12-02 08:02:43,527 INFO L226 Difference]: Without dead ends: 1000 [2018-12-02 08:02:43,528 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-02 08:02:43,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2018-12-02 08:02:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 979. [2018-12-02 08:02:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2018-12-02 08:02:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1128 transitions. [2018-12-02 08:02:43,555 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1128 transitions. Word has length 164 [2018-12-02 08:02:43,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:43,556 INFO L480 AbstractCegarLoop]: Abstraction has 979 states and 1128 transitions. [2018-12-02 08:02:43,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 08:02:43,556 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1128 transitions. [2018-12-02 08:02:43,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-02 08:02:43,558 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:43,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:43,558 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:43,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:43,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1201198401, now seen corresponding path program 1 times [2018-12-02 08:02:43,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:43,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:43,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:43,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:43,559 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:43,610 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 08:02:43,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:43,610 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:02:43,610 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-12-02 08:02:43,611 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [127], [129], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [193], [194], [223], [226], [230], [236], [239], [243], [244], [248], [251], [253], [256], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350] [2018-12-02 08:02:43,613 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:02:43,613 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:02:44,564 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:02:44,564 INFO L272 AbstractInterpreter]: Visited 120 different actions 824 times. Merged at 17 different actions 61 times. Never widened. Performed 28742 root evaluator evaluations with a maximum evaluation depth of 3. Performed 28742 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-02 08:02:44,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:44,583 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:02:44,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:44,583 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/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 08:02:44,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:44,589 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:02:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:44,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:02:44,679 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 08:02:44,679 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:02:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 08:02:44,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:02:44,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-02 08:02:44,875 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:44,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 08:02:44,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 08:02:44,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 08:02:44,876 INFO L87 Difference]: Start difference. First operand 979 states and 1128 transitions. Second operand 5 states. [2018-12-02 08:02:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:44,914 INFO L93 Difference]: Finished difference Result 1720 states and 2020 transitions. [2018-12-02 08:02:44,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 08:02:44,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2018-12-02 08:02:44,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:44,917 INFO L225 Difference]: With dead ends: 1720 [2018-12-02 08:02:44,917 INFO L226 Difference]: Without dead ends: 765 [2018-12-02 08:02:44,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 301 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 08:02:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2018-12-02 08:02:44,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2018-12-02 08:02:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2018-12-02 08:02:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 872 transitions. [2018-12-02 08:02:44,948 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 872 transitions. Word has length 152 [2018-12-02 08:02:44,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:44,948 INFO L480 AbstractCegarLoop]: Abstraction has 765 states and 872 transitions. [2018-12-02 08:02:44,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 08:02:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 872 transitions. [2018-12-02 08:02:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-12-02 08:02:44,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:44,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:44,950 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:44,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:44,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1051379540, now seen corresponding path program 1 times [2018-12-02 08:02:44,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:44,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:44,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:44,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:44,951 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-02 08:02:45,033 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:45,033 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:02:45,033 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-12-02 08:02:45,033 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [129], [132], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [190], [192], [193], [194], [223], [226], [230], [236], [241], [243], [244], [248], [251], [253], [256], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [319], [320], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350] [2018-12-02 08:02:45,034 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:02:45,035 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:02:45,389 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:02:45,389 INFO L272 AbstractInterpreter]: Visited 116 different actions 209 times. Merged at 9 different actions 14 times. Never widened. Performed 11574 root evaluator evaluations with a maximum evaluation depth of 3. Performed 11574 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 133 variables. [2018-12-02 08:02:45,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:45,390 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:02:45,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:45,390 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/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 08:02:45,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:45,396 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:02:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:45,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:02:45,562 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 08:02:45,562 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:02:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-02 08:02:46,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:02:46,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 08:02:46,313 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:46,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 08:02:46,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 08:02:46,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 08:02:46,314 INFO L87 Difference]: Start difference. First operand 765 states and 872 transitions. Second operand 8 states. [2018-12-02 08:02:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:46,482 INFO L93 Difference]: Finished difference Result 1868 states and 2158 transitions. [2018-12-02 08:02:46,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 08:02:46,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2018-12-02 08:02:46,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:46,486 INFO L225 Difference]: With dead ends: 1868 [2018-12-02 08:02:46,486 INFO L226 Difference]: Without dead ends: 1127 [2018-12-02 08:02:46,488 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 301 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 08:02:46,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-12-02 08:02:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1124. [2018-12-02 08:02:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2018-12-02 08:02:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1278 transitions. [2018-12-02 08:02:46,528 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1278 transitions. Word has length 160 [2018-12-02 08:02:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:46,528 INFO L480 AbstractCegarLoop]: Abstraction has 1124 states and 1278 transitions. [2018-12-02 08:02:46,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 08:02:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1278 transitions. [2018-12-02 08:02:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-02 08:02:46,529 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:46,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:46,530 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:46,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:46,530 INFO L82 PathProgramCache]: Analyzing trace with hash 466235648, now seen corresponding path program 1 times [2018-12-02 08:02:46,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:46,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:46,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:46,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:46,531 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 08:02:46,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:46,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 08:02:46,609 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:46,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 08:02:46,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 08:02:46,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 08:02:46,610 INFO L87 Difference]: Start difference. First operand 1124 states and 1278 transitions. Second operand 9 states. [2018-12-02 08:02:47,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:47,002 INFO L93 Difference]: Finished difference Result 1752 states and 2025 transitions. [2018-12-02 08:02:47,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 08:02:47,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2018-12-02 08:02:47,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:47,006 INFO L225 Difference]: With dead ends: 1752 [2018-12-02 08:02:47,006 INFO L226 Difference]: Without dead ends: 1007 [2018-12-02 08:02:47,008 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-02 08:02:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2018-12-02 08:02:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1002. [2018-12-02 08:02:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2018-12-02 08:02:47,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1127 transitions. [2018-12-02 08:02:47,041 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1127 transitions. Word has length 152 [2018-12-02 08:02:47,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:47,041 INFO L480 AbstractCegarLoop]: Abstraction has 1002 states and 1127 transitions. [2018-12-02 08:02:47,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 08:02:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1127 transitions. [2018-12-02 08:02:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-12-02 08:02:47,042 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:47,042 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:47,043 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:47,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:47,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1188948764, now seen corresponding path program 1 times [2018-12-02 08:02:47,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:47,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:47,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:47,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:47,043 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-02 08:02:47,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:47,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 08:02:47,089 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:47,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:02:47,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:02:47,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:02:47,090 INFO L87 Difference]: Start difference. First operand 1002 states and 1127 transitions. Second operand 6 states. [2018-12-02 08:02:47,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:47,195 INFO L93 Difference]: Finished difference Result 1011 states and 1137 transitions. [2018-12-02 08:02:47,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 08:02:47,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-12-02 08:02:47,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:47,198 INFO L225 Difference]: With dead ends: 1011 [2018-12-02 08:02:47,199 INFO L226 Difference]: Without dead ends: 1008 [2018-12-02 08:02:47,199 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 08:02:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2018-12-02 08:02:47,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1002. [2018-12-02 08:02:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2018-12-02 08:02:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1125 transitions. [2018-12-02 08:02:47,240 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1125 transitions. Word has length 156 [2018-12-02 08:02:47,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:47,240 INFO L480 AbstractCegarLoop]: Abstraction has 1002 states and 1125 transitions. [2018-12-02 08:02:47,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:02:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1125 transitions. [2018-12-02 08:02:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-12-02 08:02:47,243 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:47,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:47,243 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:47,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:47,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1039540579, now seen corresponding path program 1 times [2018-12-02 08:02:47,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:47,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:47,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:47,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:47,244 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-02 08:02:47,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:02:47,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 08:02:47,321 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:02:47,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 08:02:47,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 08:02:47,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 08:02:47,321 INFO L87 Difference]: Start difference. First operand 1002 states and 1125 transitions. Second operand 9 states. [2018-12-02 08:02:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:47,369 INFO L93 Difference]: Finished difference Result 1643 states and 1868 transitions. [2018-12-02 08:02:47,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 08:02:47,370 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 174 [2018-12-02 08:02:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:47,372 INFO L225 Difference]: With dead ends: 1643 [2018-12-02 08:02:47,373 INFO L226 Difference]: Without dead ends: 1018 [2018-12-02 08:02:47,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-02 08:02:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2018-12-02 08:02:47,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1012. [2018-12-02 08:02:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2018-12-02 08:02:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1135 transitions. [2018-12-02 08:02:47,398 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1135 transitions. Word has length 174 [2018-12-02 08:02:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:47,399 INFO L480 AbstractCegarLoop]: Abstraction has 1012 states and 1135 transitions. [2018-12-02 08:02:47,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 08:02:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1135 transitions. [2018-12-02 08:02:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-12-02 08:02:47,400 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:02:47,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:47,401 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:02:47,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:47,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1011443419, now seen corresponding path program 1 times [2018-12-02 08:02:47,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:02:47,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:47,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:47,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:02:47,402 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:02:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-02 08:02:47,479 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:47,479 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:02:47,479 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-12-02 08:02:47,479 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [82], [83], [84], [87], [89], [95], [99], [102], [103], [104], [113], [117], [121], [124], [127], [129], [135], [137], [143], [146], [156], [157], [158], [159], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [193], [194], [223], [226], [230], [236], [239], [243], [244], [248], [251], [253], [256], [263], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [295], [296], [299], [300], [301], [302], [303], [304], [305], [307], [308], [309], [310], [313], [314], [315], [316], [317], [318], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350], [353], [354] [2018-12-02 08:02:47,481 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:02:47,481 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:02:48,209 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:02:48,209 INFO L272 AbstractInterpreter]: Visited 142 different actions 692 times. Merged at 16 different actions 46 times. Never widened. Performed 21685 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21685 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-02 08:02:48,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:02:48,210 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:02:48,210 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:02:48,210 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/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 08:02:48,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:02:48,217 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:02:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:02:48,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:02:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:02:48,339 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:02:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-02 08:02:48,561 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 08:02:48,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-02 08:02:48,562 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 08:02:48,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 08:02:48,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 08:02:48,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-02 08:02:48,563 INFO L87 Difference]: Start difference. First operand 1012 states and 1135 transitions. Second operand 14 states. [2018-12-02 08:02:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:02:49,244 INFO L93 Difference]: Finished difference Result 1648 states and 2040 transitions. [2018-12-02 08:02:49,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 08:02:49,244 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 174 [2018-12-02 08:02:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:02:49,245 INFO L225 Difference]: With dead ends: 1648 [2018-12-02 08:02:49,245 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 08:02:49,247 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 342 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2018-12-02 08:02:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 08:02:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 08:02:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 08:02:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 08:02:49,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2018-12-02 08:02:49,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:02:49,247 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 08:02:49,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 08:02:49,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 08:02:49,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 08:02:49,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 08:02:49,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:49,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:02:50,110 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2018-12-02 08:02:50,659 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2018-12-02 08:02:51,720 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2018-12-02 08:02:51,740 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 427 433) the Hoare annotation is: true [2018-12-02 08:02:51,740 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 427 433) no Hoare annotation was computed. [2018-12-02 08:02:51,740 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 434 442) no Hoare annotation was computed. [2018-12-02 08:02:51,740 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 434 442) the Hoare annotation is: true [2018-12-02 08:02:51,740 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 434 442) no Hoare annotation was computed. [2018-12-02 08:02:51,740 INFO L448 ceAbstractionStarter]: For program point L386-1(line 386) no Hoare annotation was computed. [2018-12-02 08:02:51,740 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 380 404) the Hoare annotation is: true [2018-12-02 08:02:51,740 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 380 404) no Hoare annotation was computed. [2018-12-02 08:02:51,740 INFO L444 ceAbstractionStarter]: At program point L394(line 394) the Hoare annotation is: (let ((.cse2 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0 .cse3) (or .cse2 .cse0 .cse3 .cse1))) [2018-12-02 08:02:51,740 INFO L448 ceAbstractionStarter]: For program point L392(lines 392 398) no Hoare annotation was computed. [2018-12-02 08:02:51,740 INFO L444 ceAbstractionStarter]: At program point L390(line 390) the Hoare annotation is: (let ((.cse2 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0 .cse3) (or .cse2 .cse0 .cse3 .cse1))) [2018-12-02 08:02:51,740 INFO L448 ceAbstractionStarter]: For program point L390-1(line 390) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 401) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point L388-1(lines 380 404) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L451 ceAbstractionStarter]: At program point L386(line 386) the Hoare annotation is: true [2018-12-02 08:02:51,741 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 516 538) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 516 538) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L444 ceAbstractionStarter]: At program point L528(line 528) 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)) (and (= main_~tmp~8 1) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 08:02:51,741 INFO L444 ceAbstractionStarter]: At program point L528-1(line 528) 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)) (and (= main_~tmp~8 1) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 533) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 526 533) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 516 538) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-02 08:02:51,741 INFO L444 ceAbstractionStarter]: At program point L523(line 523) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 08:02:51,741 INFO L444 ceAbstractionStarter]: At program point L522(line 522) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 08:02:51,741 INFO L444 ceAbstractionStarter]: At program point L522-1(line 522) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 08:02:51,741 INFO L444 ceAbstractionStarter]: At program point L211(line 211) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or (< ~methaneLevelCritical~0 1) .cse3 (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 .cse3 .cse2))) [2018-12-02 08:02:51,741 INFO L448 ceAbstractionStarter]: For program point L211-1(lines 192 216) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 192 216) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,742 INFO L444 ceAbstractionStarter]: At program point L206(line 206) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 192 216) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L444 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3))) [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point L200(lines 200 208) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L444 ceAbstractionStarter]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3))) [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point L198-1(line 198) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point L196(lines 196 213) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 287 295) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 287 295) the Hoare annotation is: true [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 287 295) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 351 369) the Hoare annotation is: true [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 364) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L451 ceAbstractionStarter]: At program point L358(line 358) the Hoare annotation is: true [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 351 369) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point L358-1(line 358) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 351 369) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 420 426) no Hoare annotation was computed. [2018-12-02 08:02:51,742 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 420 426) the Hoare annotation is: true [2018-12-02 08:02:51,743 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 506 515) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 506 515) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 506 515) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 276 286) the Hoare annotation is: true [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 276 286) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L451 ceAbstractionStarter]: At program point L281(line 281) the Hoare annotation is: true [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point L281-1(line 281) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 276 286) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 268 275) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 268 275) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 268 275) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point L989(lines 989 995) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 985 998) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 985 998) the Hoare annotation is: true [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 985 998) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L444 ceAbstractionStarter]: At program point L224(line 224) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse4 .cse1 .cse3 .cse5) (or .cse1 .cse3 .cse2 .cse5))) [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point L224-1(line 224) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point L222(lines 222 239) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 218 242) no Hoare annotation was computed. [2018-12-02 08:02:51,743 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 218 242) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse1 .cse2 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,744 INFO L444 ceAbstractionStarter]: At program point L237(line 237) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse2) (or .cse1 .cse2 .cse3 .cse5) (or .cse1 .cse2 .cse4 .cse5))) [2018-12-02 08:02:51,744 INFO L448 ceAbstractionStarter]: For program point L237-1(lines 218 242) no Hoare annotation was computed. [2018-12-02 08:02:51,744 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-02 08:02:51,744 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,744 INFO L448 ceAbstractionStarter]: For program point L226(lines 226 234) no Hoare annotation was computed. [2018-12-02 08:02:51,744 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 158 164) no Hoare annotation was computed. [2018-12-02 08:02:51,744 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 158 164) the Hoare annotation is: true [2018-12-02 08:02:51,744 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 54 119) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 08:02:51,744 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 54 119) no Hoare annotation was computed. [2018-12-02 08:02:51,744 INFO L444 ceAbstractionStarter]: At program point L112(lines 63 113) 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 08:02:51,744 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-12-02 08:02:51,744 INFO L444 ceAbstractionStarter]: At program point L102-2(lines 94 107) the Hoare annotation is: (let ((.cse4 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse5 (= 0 ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 0))) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse6 .cse3) (not (= |old(~systemActive~0)| 1)) (and .cse4 .cse0 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse1 .cse2 .cse6 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 08:02:51,744 INFO L448 ceAbstractionStarter]: For program point L65(lines 64 111) no Hoare annotation was computed. [2018-12-02 08:02:51,744 INFO L444 ceAbstractionStarter]: At program point L96(line 96) the Hoare annotation is: (let ((.cse4 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse5 (= 0 ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 0))) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse6 .cse3) (not (= |old(~systemActive~0)| 1)) (and .cse4 .cse0 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse1 .cse2 .cse6 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 08:02:51,744 INFO L448 ceAbstractionStarter]: For program point L94(lines 94 107) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L444 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 0))) (.cse3 (<= 1 ~waterLevel~0)) (.cse4 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3 .cse4) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 90) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L444 ceAbstractionStarter]: At program point L109(lines 64 111) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= ~systemActive~0 0))) (.cse4 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse4))) [2018-12-02 08:02:51,745 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= ~systemActive~0 0))) (.cse4 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3 .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse4) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 54 119) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 70) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 243 250) the Hoare annotation is: (or (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0)) (not (= ~methaneLevelCritical~0 0))) [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 243 250) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 243 250) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 999 1007) no Hoare annotation was computed. [2018-12-02 08:02:51,745 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 999 1007) the Hoare annotation is: true [2018-12-02 08:02:51,746 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 999 1007) no Hoare annotation was computed. [2018-12-02 08:02:51,746 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 08:02:51,746 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 08:02:51,746 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:02:51,746 INFO L444 ceAbstractionStarter]: At program point L256(line 256) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 2)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,746 INFO L448 ceAbstractionStarter]: For program point L256-1(line 256) no Hoare annotation was computed. [2018-12-02 08:02:51,746 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 251 267) no Hoare annotation was computed. [2018-12-02 08:02:51,746 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 251 267) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 2)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,746 INFO L444 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 2))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,746 INFO L448 ceAbstractionStarter]: For program point L262-1(lines 251 267) no Hoare annotation was computed. [2018-12-02 08:02:51,746 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 264) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 976 984) the Hoare annotation is: true [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 976 984) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 976 984) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 332 350) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 332 350) the Hoare annotation is: true [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 345) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 332 350) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L451 ceAbstractionStarter]: At program point L339(line 339) the Hoare annotation is: true [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point L339-1(line 339) no Hoare annotation was computed. [2018-12-02 08:02:51,747 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 932 943) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or (< |old(~methaneLevelCritical~0)| 1) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (or .cse3 (or .cse1 .cse4) (< ~waterLevel~0 2)) (or .cse0 .cse1 .cse2 .cse3 .cse4))) [2018-12-02 08:02:51,747 INFO L448 ceAbstractionStarter]: For program point L936-1(lines 932 943) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 932 943) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 944 952) the Hoare annotation is: true [2018-12-02 08:02:51,748 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 944 952) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 944 952) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 445 474) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 445 474) the Hoare annotation is: true [2018-12-02 08:02:51,748 INFO L451 ceAbstractionStarter]: At program point L470(lines 445 474) the Hoare annotation is: true [2018-12-02 08:02:51,748 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L448 ceAbstractionStarter]: For program point L459(lines 459 463) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L451 ceAbstractionStarter]: At program point L459-1(lines 459 463) the Hoare annotation is: true [2018-12-02 08:02:51,748 INFO L448 ceAbstractionStarter]: For program point L456(line 456) no Hoare annotation was computed. [2018-12-02 08:02:51,748 INFO L451 ceAbstractionStarter]: At program point L455-2(lines 455 469) the Hoare annotation is: true [2018-12-02 08:02:51,748 INFO L451 ceAbstractionStarter]: At program point L451(line 451) the Hoare annotation is: true [2018-12-02 08:02:51,749 INFO L448 ceAbstractionStarter]: For program point L451-1(line 451) no Hoare annotation was computed. [2018-12-02 08:02:51,749 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse8)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse6 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8)) (.cse7 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse3 .cse0 .cse1 .cse2) (or .cse1 .cse6 .cse7 .cse4) (or .cse5 .cse1 .cse6 .cse7)))) [2018-12-02 08:02:51,749 INFO L444 ceAbstractionStarter]: At program point L145(lines 145 151) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse9 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse4 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and (<= 2 ~waterLevel~0) (not .cse0) .cse9)) (.cse8 (< |old(~waterLevel~0)| 1)) (.cse6 (and .cse9 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse4 .cse0 .cse2) (or .cse5 .cse6 .cse7 .cse0 .cse8) (or .cse7 .cse0 .cse1 .cse8 .cse6 .cse3)))) [2018-12-02 08:02:51,749 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 134 157) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (< |old(~waterLevel~0)| 1)) (.cse2 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (= ~systemActive~0 0)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse2 .cse6) (or .cse0 .cse2 .cse4 .cse1 .cse5) (or .cse2 .cse1 .cse3 .cse6))) [2018-12-02 08:02:51,749 INFO L444 ceAbstractionStarter]: At program point L140(line 140) the Hoare annotation is: (let ((.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse6 (< |old(~waterLevel~0)| 1)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse6) (or .cse5 .cse2 .cse6 .cse4))) [2018-12-02 08:02:51,749 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 134 157) no Hoare annotation was computed. [2018-12-02 08:02:51,749 INFO L448 ceAbstractionStarter]: For program point L138(lines 137 156) no Hoare annotation was computed. [2018-12-02 08:02:51,749 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 134 157) no Hoare annotation was computed. [2018-12-02 08:02:51,749 INFO L448 ceAbstractionStarter]: For program point L912-1(lines 908 919) no Hoare annotation was computed. [2018-12-02 08:02:51,750 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 908 919) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3))) [2018-12-02 08:02:51,750 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 908 919) no Hoare annotation was computed. [2018-12-02 08:02:51,750 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 499 505) no Hoare annotation was computed. [2018-12-02 08:02:51,750 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 499 505) the Hoare annotation is: true [2018-12-02 08:02:51,750 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:02:51,750 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 08:02:51,750 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 08:02:51,750 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 08:02:51,750 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 166 190) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,750 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 166 190) no Hoare annotation was computed. [2018-12-02 08:02:51,750 INFO L444 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,750 INFO L448 ceAbstractionStarter]: For program point L185-1(lines 166 190) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L444 ceAbstractionStarter]: At program point L180(line 180) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse3 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (< ~waterLevel~0 1))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,751 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (let ((.cse3 (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse3 (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point L174(lines 174 182) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L444 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point L172-1(line 172) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point L170(lines 170 187) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 370 377) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 370 377) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 2)) (.cse8 (not (= ~waterLevel~0 2))) (.cse6 (= ~systemActive~0 1)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse7 (not (= |old(~systemActive~0)| 1))) (.cse10 (not (= ~waterLevel~0 1))) (.cse5 (not (= 0 ~pumpRunning~0))) (.cse1 (= |old(~systemActive~0)| 0)) (.cse9 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse1 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse2 .cse5 .cse1 .cse9) (or .cse7 .cse4 .cse6 .cse8) (or .cse6 .cse5 .cse7 .cse10 .cse4) (or .cse6 .cse0 .cse5 .cse7 .cse10) (or .cse5 .cse1 .cse9 .cse2 .cse4))) [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 370 377) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 920 931) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point L924-1(lines 920 931) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 920 931) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 0)) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse4 (< |old(~waterLevel~0)| 1)) (.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (< |old(~waterLevel~0)| 2) .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse2 .cse3 .cse0 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse1))) [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-12-02 08:02:51,751 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-12-02 08:02:51,751 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-12-02 08:02:51,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:02:51 BoogieIcfgContainer [2018-12-02 08:02:51,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:02:51,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:02:51,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:02:51,759 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:02:51,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:02:39" (3/4) ... [2018-12-02 08:02:51,762 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 08:02:51,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 08:02:51,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 08:02:51,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-02 08:02:51,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 08:02:51,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-02 08:02:51,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 08:02:51,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 08:02:51,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 08:02:51,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 08:02:51,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-02 08:02:51,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 08:02:51,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 08:02:51,771 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-12-02 08:02:51,771 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 08:02:51,772 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 08:02:51,772 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 08:02:51,772 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 08:02:51,772 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 08:02:51,788 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(0 == \old(pumpRunning)) || ((((0 == methaneLevelCritical && 0 == pumpRunning) && !(systemActive == 0)) && 1 <= waterLevel) && splverifierCounter == 0)) || ((((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((0 == methaneLevelCritical && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0) [2018-12-02 08:02:51,789 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 08:02:51,821 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23c414bd-ea6b-442c-b691-d4ad8ce92491/bin-2019/utaipan/witness.graphml [2018-12-02 08:02:51,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:02:51,822 INFO L168 Benchmark]: Toolchain (without parser) took 13452.84 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 823.7 MB). Free memory was 948.1 MB in the beginning and 1.6 GB in the end (delta: -647.1 MB). Peak memory consumption was 176.5 MB. Max. memory is 11.5 GB. [2018-12-02 08:02:51,822 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:02:51,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-02 08:02:51,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:02:51,823 INFO L168 Benchmark]: Boogie Preprocessor took 21.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:02:51,823 INFO L168 Benchmark]: RCFGBuilder took 316.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:02:51,823 INFO L168 Benchmark]: TraceAbstraction took 12736.37 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 717.8 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -592.2 MB). Peak memory consumption was 830.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:02:51,823 INFO L168 Benchmark]: Witness Printer took 62.38 ms. Allocated memory is still 1.9 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2018-12-02 08:02:51,825 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 316.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12736.37 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 717.8 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -592.2 MB). Peak memory consumption was 830.6 MB. Max. memory is 11.5 GB. * Witness Printer took 62.38 ms. Allocated memory is still 1.9 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 63]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((!(0 == \old(pumpRunning)) || ((((0 == methaneLevelCritical && 0 == pumpRunning) && !(systemActive == 0)) && 1 <= waterLevel) && splverifierCounter == 0)) || ((((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((0 == methaneLevelCritical && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 170 locations, 1 error locations. SAFE Result, 12.6s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 2684 SDtfs, 2047 SDslu, 8262 SDs, 0 SdLazy, 3632 SolverSat, 629 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1586 GetRequests, 1431 SyntacticMatches, 23 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1124occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.7s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9980845230826189 AbsIntWeakeningRatio, 0.8343558282208589 AbsIntAvgWeakeningVarsNumRemoved, 56.8159509202454 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 76 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 2790 PreInvPairs, 2999 NumberOfFragments, 2239 HoareAnnotationTreeSize, 2790 FomulaSimplifications, 5074 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 71 FomulaSimplificationsInter, 15424 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2213 NumberOfCodeBlocks, 2213 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2826 ConstructedInterpolants, 0 QuantifiedInterpolants, 593245 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3544 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 520/592 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...