./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 944b52f1c750b2b149a29532cc6e317483d681a8 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 944b52f1c750b2b149a29532cc6e317483d681a8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:52,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:52,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:52,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:52,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:52,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:52,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:52,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:52,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:52,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:52,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:52,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:52,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:52,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:52,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:52,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:52,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:52,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:52,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:52,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:52,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:52,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:52,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:52,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:52,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:52,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:52,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:52,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:52,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:52,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:52,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:52,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:52,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:52,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:52,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:52,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:52,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:52,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:52,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:52,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:52,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:52,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:52,719 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:52,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:52,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:52,721 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:52,721 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:52,721 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:52,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:52,722 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:52,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:52,722 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:52,722 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:52,723 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:52,723 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:52,723 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:52,723 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:52,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:52,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:52,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:52,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:52,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:52,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:52,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:52,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:52,726 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:52,727 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:52,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:52,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:52,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:52,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:52,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:52,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:52,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:52,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:52,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:52,729 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:52,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:52,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:52,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:52,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:52,730 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 944b52f1c750b2b149a29532cc6e317483d681a8 [2021-10-11 02:20:52,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:53,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:53,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:53,022 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:53,023 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:53,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2021-10-11 02:20:53,113 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/ec43807fb/b99ca82656bd4d23a0d54cb3cdad1205/FLAGf159939a0 [2021-10-11 02:20:53,652 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:53,656 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2021-10-11 02:20:53,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/ec43807fb/b99ca82656bd4d23a0d54cb3cdad1205/FLAGf159939a0 [2021-10-11 02:20:53,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/ec43807fb/b99ca82656bd4d23a0d54cb3cdad1205 [2021-10-11 02:20:53,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:53,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:53,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:53,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:53,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:53,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:53" (1/1) ... [2021-10-11 02:20:53,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580b4d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:53, skipping insertion in model container [2021-10-11 02:20:53,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:53" (1/1) ... [2021-10-11 02:20:53,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:54,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:54,318 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15172,15185] [2021-10-11 02:20:54,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:54,346 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:20:54,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fec7c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:54, skipping insertion in model container [2021-10-11 02:20:54,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:54,347 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:20:54,350 INFO L168 Benchmark]: Toolchain (without parser) took 403.62 ms. Allocated memory is still 102.8 MB. Free memory was 68.2 MB in the beginning and 74.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,351 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory was 56.0 MB in the beginning and 55.9 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:54,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.36 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 74.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory was 56.0 MB in the beginning and 55.9 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.36 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 74.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 108]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:56,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:56,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:56,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:56,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:56,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:56,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:56,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:56,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:56,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:56,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:56,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:56,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:56,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:56,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:56,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:56,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:56,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:56,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:56,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:56,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:56,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:56,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:56,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:56,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:56,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:56,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:56,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:56,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:56,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:56,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:56,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:56,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:56,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:56,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:56,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:56,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:56,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:56,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:56,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:56,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:56,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:20:56,740 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:56,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:56,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:56,741 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:56,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:56,742 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:56,742 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:56,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:56,743 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:56,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:56,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:56,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:56,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:56,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:56,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:56,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:56,747 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:56,747 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:20:56,747 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:20:56,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:56,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:56,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:56,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:56,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:56,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:20:56,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:56,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:56,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:56,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:56,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:56,750 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:20:56,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:20:56,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:56,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:56,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:56,751 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 944b52f1c750b2b149a29532cc6e317483d681a8 [2021-10-11 02:20:57,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:57,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:57,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:57,176 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:57,177 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:57,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2021-10-11 02:20:57,256 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/b109bfe7e/179e1850971b4688a393b7979128a44e/FLAG97bd601b3 [2021-10-11 02:20:57,824 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:57,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2021-10-11 02:20:57,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/b109bfe7e/179e1850971b4688a393b7979128a44e/FLAG97bd601b3 [2021-10-11 02:20:58,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/data/b109bfe7e/179e1850971b4688a393b7979128a44e [2021-10-11 02:20:58,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:58,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:58,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:58,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:58,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:58,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7830937c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58, skipping insertion in model container [2021-10-11 02:20:58,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:58,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:58,608 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15172,15185] [2021-10-11 02:20:58,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:58,669 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:20:58,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:58,777 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15172,15185] [2021-10-11 02:20:58,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:58,809 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:58,892 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15172,15185] [2021-10-11 02:20:58,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:58,961 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:58,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58 WrapperNode [2021-10-11 02:20:58,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:58,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:58,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:58,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:58,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:58,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:59,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:59,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:59,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:59,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... [2021-10-11 02:20:59,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:59,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:59,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:59,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:59,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:59,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:59,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:20:59,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:59,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:01,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:01,631 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-11 02:21:01,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:01 BoogieIcfgContainer [2021-10-11 02:21:01,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:01,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:01,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:01,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:01,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:58" (1/3) ... [2021-10-11 02:21:01,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc7438a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:01, skipping insertion in model container [2021-10-11 02:21:01,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:58" (2/3) ... [2021-10-11 02:21:01,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc7438a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:01, skipping insertion in model container [2021-10-11 02:21:01,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:01" (3/3) ... [2021-10-11 02:21:01,647 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2021-10-11 02:21:01,660 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:01,664 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:21:01,674 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:21:01,708 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:01,709 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:01,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:01,709 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:01,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:01,709 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:01,709 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:01,710 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2021-10-11 02:21:01,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:21:01,735 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:01,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:01,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:01,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:01,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1221872895, now seen corresponding path program 1 times [2021-10-11 02:21:01,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:01,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497710244] [2021-10-11 02:21:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:01,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:21:01,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:02,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:02,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497710244] [2021-10-11 02:21:02,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:02,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:02,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233555621] [2021-10-11 02:21:02,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:21:02,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:02,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:21:02,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:02,063 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2021-10-11 02:21:02,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:02,119 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2021-10-11 02:21:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:21:02,121 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:21:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:02,133 INFO L225 Difference]: With dead ends: 220 [2021-10-11 02:21:02,133 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:21:02,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:02,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:21:02,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-11 02:21:02,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-10-11 02:21:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2021-10-11 02:21:02,177 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2021-10-11 02:21:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:02,178 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2021-10-11 02:21:02,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:21:02,178 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2021-10-11 02:21:02,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:21:02,179 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:02,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:02,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:21:02,392 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:02,393 INFO L82 PathProgramCache]: Analyzing trace with hash 175115998, now seen corresponding path program 1 times [2021-10-11 02:21:02,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:02,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419300236] [2021-10-11 02:21:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:02,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:02,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:02,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:02,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419300236] [2021-10-11 02:21:02,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:02,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:21:02,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481347479] [2021-10-11 02:21:02,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:02,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:02,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:02,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:02,650 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 3 states. [2021-10-11 02:21:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:02,662 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2021-10-11 02:21:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:02,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:21:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:02,664 INFO L225 Difference]: With dead ends: 109 [2021-10-11 02:21:02,664 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 02:21:02,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 02:21:02,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 02:21:02,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 02:21:02,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-10-11 02:21:02,672 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-10-11 02:21:02,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:02,673 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-10-11 02:21:02,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:02,673 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-10-11 02:21:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:21:02,674 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:02,674 INFO L422 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] [2021-10-11 02:21:02,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:21:02,890 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:02,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:02,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1744081540, now seen corresponding path program 1 times [2021-10-11 02:21:02,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:02,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373493574] [2021-10-11 02:21:02,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:03,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:03,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:03,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:03,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:03,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373493574] [2021-10-11 02:21:03,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:03,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:03,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52952323] [2021-10-11 02:21:03,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:03,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:03,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:03,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:03,111 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2021-10-11 02:21:03,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:03,129 INFO L93 Difference]: Finished difference Result 129 states and 192 transitions. [2021-10-11 02:21:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:03,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:21:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:03,132 INFO L225 Difference]: With dead ends: 129 [2021-10-11 02:21:03,132 INFO L226 Difference]: Without dead ends: 88 [2021-10-11 02:21:03,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:03,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-11 02:21:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2021-10-11 02:21:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-10-11 02:21:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2021-10-11 02:21:03,145 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 22 [2021-10-11 02:21:03,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:03,145 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2021-10-11 02:21:03,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2021-10-11 02:21:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:21:03,147 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:03,147 INFO L422 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] [2021-10-11 02:21:03,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:21:03,363 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:03,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:03,363 INFO L82 PathProgramCache]: Analyzing trace with hash -595366227, now seen corresponding path program 1 times [2021-10-11 02:21:03,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:03,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126200942] [2021-10-11 02:21:03,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:03,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:03,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:03,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:03,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126200942] [2021-10-11 02:21:03,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:03,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:21:03,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105902290] [2021-10-11 02:21:03,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:03,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:03,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:03,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:03,586 INFO L87 Difference]: Start difference. First operand 84 states and 125 transitions. Second operand 3 states. [2021-10-11 02:21:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:03,667 INFO L93 Difference]: Finished difference Result 203 states and 306 transitions. [2021-10-11 02:21:03,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:03,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:21:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:03,675 INFO L225 Difference]: With dead ends: 203 [2021-10-11 02:21:03,675 INFO L226 Difference]: Without dead ends: 125 [2021-10-11 02:21:03,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:03,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-11 02:21:03,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-10-11 02:21:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-10-11 02:21:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 179 transitions. [2021-10-11 02:21:03,708 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 179 transitions. Word has length 24 [2021-10-11 02:21:03,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:03,710 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 179 transitions. [2021-10-11 02:21:03,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 179 transitions. [2021-10-11 02:21:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:21:03,713 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:03,713 INFO L422 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] [2021-10-11 02:21:03,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:21:03,929 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:03,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:03,929 INFO L82 PathProgramCache]: Analyzing trace with hash 566175321, now seen corresponding path program 1 times [2021-10-11 02:21:03,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:03,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189433613] [2021-10-11 02:21:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:04,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:04,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:04,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:04,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189433613] [2021-10-11 02:21:04,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:04,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:21:04,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669545590] [2021-10-11 02:21:04,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:21:04,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:04,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:21:04,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:04,166 INFO L87 Difference]: Start difference. First operand 123 states and 179 transitions. Second operand 5 states. [2021-10-11 02:21:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:04,317 INFO L93 Difference]: Finished difference Result 439 states and 645 transitions. [2021-10-11 02:21:04,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:04,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:21:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:04,320 INFO L225 Difference]: With dead ends: 439 [2021-10-11 02:21:04,320 INFO L226 Difference]: Without dead ends: 322 [2021-10-11 02:21:04,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:21:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-11 02:21:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 206. [2021-10-11 02:21:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2021-10-11 02:21:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 290 transitions. [2021-10-11 02:21:04,348 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 290 transitions. Word has length 25 [2021-10-11 02:21:04,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:04,348 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 290 transitions. [2021-10-11 02:21:04,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:21:04,348 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 290 transitions. [2021-10-11 02:21:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:21:04,349 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:04,350 INFO L422 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] [2021-10-11 02:21:04,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:21:04,569 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:04,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:04,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1393133669, now seen corresponding path program 1 times [2021-10-11 02:21:04,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:04,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672855196] [2021-10-11 02:21:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:04,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:21:04,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:04,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:04,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672855196] [2021-10-11 02:21:04,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:04,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:21:04,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162751869] [2021-10-11 02:21:04,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:04,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:04,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:04,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:21:04,840 INFO L87 Difference]: Start difference. First operand 206 states and 290 transitions. Second operand 6 states. [2021-10-11 02:21:06,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:06,702 INFO L93 Difference]: Finished difference Result 620 states and 903 transitions. [2021-10-11 02:21:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:21:06,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2021-10-11 02:21:06,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:06,707 INFO L225 Difference]: With dead ends: 620 [2021-10-11 02:21:06,707 INFO L226 Difference]: Without dead ends: 503 [2021-10-11 02:21:06,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:21:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-10-11 02:21:06,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 398. [2021-10-11 02:21:06,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2021-10-11 02:21:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 557 transitions. [2021-10-11 02:21:06,753 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 557 transitions. Word has length 26 [2021-10-11 02:21:06,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:06,754 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 557 transitions. [2021-10-11 02:21:06,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:06,754 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 557 transitions. [2021-10-11 02:21:06,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-11 02:21:06,764 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:06,764 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 02:21:06,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:21:06,981 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:06,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:06,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1636260158, now seen corresponding path program 1 times [2021-10-11 02:21:06,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:06,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186502062] [2021-10-11 02:21:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:07,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:07,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:07,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:07,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186502062] [2021-10-11 02:21:07,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:07,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:21:07,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953963703] [2021-10-11 02:21:07,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:07,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:07,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:07,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:07,227 INFO L87 Difference]: Start difference. First operand 398 states and 557 transitions. Second operand 3 states. [2021-10-11 02:21:07,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:07,301 INFO L93 Difference]: Finished difference Result 678 states and 949 transitions. [2021-10-11 02:21:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:07,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2021-10-11 02:21:07,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:07,305 INFO L225 Difference]: With dead ends: 678 [2021-10-11 02:21:07,305 INFO L226 Difference]: Without dead ends: 475 [2021-10-11 02:21:07,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:07,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-10-11 02:21:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 276. [2021-10-11 02:21:07,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2021-10-11 02:21:07,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 383 transitions. [2021-10-11 02:21:07,334 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 383 transitions. Word has length 47 [2021-10-11 02:21:07,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:07,335 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 383 transitions. [2021-10-11 02:21:07,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:07,335 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 383 transitions. [2021-10-11 02:21:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-11 02:21:07,336 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:07,336 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 02:21:07,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:21:07,551 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:07,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:07,552 INFO L82 PathProgramCache]: Analyzing trace with hash -764962150, now seen corresponding path program 1 times [2021-10-11 02:21:07,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:07,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493538387] [2021-10-11 02:21:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:07,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:07,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:07,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:07,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493538387] [2021-10-11 02:21:07,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:07,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:21:07,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355235086] [2021-10-11 02:21:07,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:21:07,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:07,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:21:07,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:07,832 INFO L87 Difference]: Start difference. First operand 276 states and 383 transitions. Second operand 5 states. [2021-10-11 02:21:07,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:07,962 INFO L93 Difference]: Finished difference Result 853 states and 1178 transitions. [2021-10-11 02:21:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:07,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2021-10-11 02:21:07,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:07,966 INFO L225 Difference]: With dead ends: 853 [2021-10-11 02:21:07,967 INFO L226 Difference]: Without dead ends: 583 [2021-10-11 02:21:07,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:21:07,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2021-10-11 02:21:08,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 294. [2021-10-11 02:21:08,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2021-10-11 02:21:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 401 transitions. [2021-10-11 02:21:08,004 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 401 transitions. Word has length 48 [2021-10-11 02:21:08,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:08,004 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 401 transitions. [2021-10-11 02:21:08,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:21:08,005 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 401 transitions. [2021-10-11 02:21:08,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-11 02:21:08,006 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:08,006 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 02:21:08,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:21:08,220 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:08,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:08,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1274435240, now seen corresponding path program 1 times [2021-10-11 02:21:08,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:08,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248183846] [2021-10-11 02:21:08,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:08,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:21:08,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:08,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:08,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248183846] [2021-10-11 02:21:08,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:08,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:21:08,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886157391] [2021-10-11 02:21:08,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:21:08,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:08,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:21:08,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:21:08,515 INFO L87 Difference]: Start difference. First operand 294 states and 401 transitions. Second operand 4 states. [2021-10-11 02:21:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:08,627 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2021-10-11 02:21:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:21:08,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2021-10-11 02:21:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:08,630 INFO L225 Difference]: With dead ends: 709 [2021-10-11 02:21:08,631 INFO L226 Difference]: Without dead ends: 421 [2021-10-11 02:21:08,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-11 02:21:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 274. [2021-10-11 02:21:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 02:21:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 368 transitions. [2021-10-11 02:21:08,666 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 368 transitions. Word has length 48 [2021-10-11 02:21:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:08,667 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 368 transitions. [2021-10-11 02:21:08,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:21:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 368 transitions. [2021-10-11 02:21:08,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:21:08,668 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:08,668 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 02:21:08,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:21:08,884 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash -219716332, now seen corresponding path program 1 times [2021-10-11 02:21:08,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:08,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215907787] [2021-10-11 02:21:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:09,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:21:09,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 02:21:09,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:09,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215907787] [2021-10-11 02:21:09,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:09,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:21:09,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226814331] [2021-10-11 02:21:09,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:09,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:09,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:09,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:21:09,204 INFO L87 Difference]: Start difference. First operand 274 states and 368 transitions. Second operand 6 states. [2021-10-11 02:21:09,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:09,577 INFO L93 Difference]: Finished difference Result 1636 states and 2250 transitions. [2021-10-11 02:21:09,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:21:09,577 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2021-10-11 02:21:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:09,587 INFO L225 Difference]: With dead ends: 1636 [2021-10-11 02:21:09,587 INFO L226 Difference]: Without dead ends: 1368 [2021-10-11 02:21:09,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:21:09,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2021-10-11 02:21:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 540. [2021-10-11 02:21:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2021-10-11 02:21:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 716 transitions. [2021-10-11 02:21:09,674 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 716 transitions. Word has length 49 [2021-10-11 02:21:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:09,675 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 716 transitions. [2021-10-11 02:21:09,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 716 transitions. [2021-10-11 02:21:09,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-11 02:21:09,676 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:09,676 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 02:21:09,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:21:09,896 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:09,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:09,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2038322788, now seen corresponding path program 1 times [2021-10-11 02:21:09,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:09,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113528217] [2021-10-11 02:21:09,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:10,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:21:10,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:21:10,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:21:10,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113528217] [2021-10-11 02:21:10,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2127886561] [2021-10-11 02:21:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:21:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:10,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:21:10,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:21:10,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:21:10,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636323359] [2021-10-11 02:21:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:10,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:21:10,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:10,844 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:21:10,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:21:10,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:21:10,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-11 02:21:10,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905198267] [2021-10-11 02:21:10,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:21:10,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:10,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:21:10,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:21:10,911 INFO L87 Difference]: Start difference. First operand 540 states and 716 transitions. Second operand 10 states. [2021-10-11 02:21:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:13,665 INFO L93 Difference]: Finished difference Result 2445 states and 3273 transitions. [2021-10-11 02:21:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-11 02:21:13,665 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2021-10-11 02:21:13,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:13,676 INFO L225 Difference]: With dead ends: 2445 [2021-10-11 02:21:13,677 INFO L226 Difference]: Without dead ends: 1991 [2021-10-11 02:21:13,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-11 02:21:13,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2021-10-11 02:21:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 674. [2021-10-11 02:21:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2021-10-11 02:21:13,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 904 transitions. [2021-10-11 02:21:13,791 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 904 transitions. Word has length 50 [2021-10-11 02:21:13,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:13,791 INFO L481 AbstractCegarLoop]: Abstraction has 674 states and 904 transitions. [2021-10-11 02:21:13,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:21:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 904 transitions. [2021-10-11 02:21:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-11 02:21:13,793 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:13,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 02:21:14,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2021-10-11 02:21:14,421 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:14,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:14,421 INFO L82 PathProgramCache]: Analyzing trace with hash 564554040, now seen corresponding path program 2 times [2021-10-11 02:21:14,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:14,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736722803] [2021-10-11 02:21:14,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:16,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:17,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:17,852 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:21:17,852 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:21:18,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2021-10-11 02:21:18,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:18 BoogieIcfgContainer [2021-10-11 02:21:18,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:18,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:18,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:18,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:18,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:01" (3/4) ... [2021-10-11 02:21:18,294 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:21:18,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a251e2b8-8fb8-4953-8fe7-be8d1be963c9/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:18,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:18,441 INFO L168 Benchmark]: Toolchain (without parser) took 20274.04 ms. Allocated memory was 58.7 MB in the beginning and 142.6 MB in the end (delta: 83.9 MB). Free memory was 36.1 MB in the beginning and 58.9 MB in the end (delta: -22.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:18,442 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 39.5 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:18,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 793.30 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 35.9 MB in the beginning and 57.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:18,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.40 ms. Allocated memory is still 75.5 MB. Free memory was 57.0 MB in the beginning and 53.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:18,443 INFO L168 Benchmark]: Boogie Preprocessor took 63.98 ms. Allocated memory is still 75.5 MB. Free memory was 53.5 MB in the beginning and 50.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:18,443 INFO L168 Benchmark]: RCFGBuilder took 2534.12 ms. Allocated memory is still 75.5 MB. Free memory was 50.8 MB in the beginning and 35.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:18,444 INFO L168 Benchmark]: TraceAbstraction took 16653.26 ms. Allocated memory was 75.5 MB in the beginning and 142.6 MB in the end (delta: 67.1 MB). Free memory was 35.2 MB in the beginning and 86.2 MB in the end (delta: -51.0 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:18,444 INFO L168 Benchmark]: Witness Printer took 148.86 ms. Allocated memory is still 142.6 MB. Free memory was 86.2 MB in the beginning and 58.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:18,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 39.5 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 793.30 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 35.9 MB in the beginning and 57.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.40 ms. Allocated memory is still 75.5 MB. Free memory was 57.0 MB in the beginning and 53.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.98 ms. Allocated memory is still 75.5 MB. Free memory was 53.5 MB in the beginning and 50.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2534.12 ms. Allocated memory is still 75.5 MB. Free memory was 50.8 MB in the beginning and 35.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16653.26 ms. Allocated memory was 75.5 MB in the beginning and 142.6 MB in the end (delta: 67.1 MB). Free memory was 35.2 MB in the beginning and 86.2 MB in the end (delta: -51.0 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.1 GB. * Witness Printer took 148.86 ms. Allocated memory is still 142.6 MB. Free memory was 86.2 MB in the beginning and 58.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 724]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L526] int pumpRunning = 0; [L527] int systemActive = 1; [L730] int waterLevel = 1; [L731] int methaneLevelCritical = 0; [L824] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L897] int retValue_acc ; [L898] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L452] int splverifierCounter ; [L453] int tmp ; [L454] int tmp___0 ; [L455] int tmp___1 ; [L456] int tmp___2 ; [L459] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L461] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L463] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] tmp = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L748] COND TRUE waterLevel < 2 [L749] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] tmp___0 = __VERIFIER_nondet_int() [L481] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L489] tmp___2 = __VERIFIER_nondet_int() [L491] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L534] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L541] COND TRUE \read(systemActive) [L589] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] COND FALSE !(\read(pumpRunning)) [L563] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] COND TRUE ! pumpRunning [L686] int retValue_acc ; [L687] int tmp ; [L688] int tmp___0 ; [L810] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L813] COND FALSE !(waterLevel < 2) [L817] retValue_acc = 0 [L818] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L692] tmp = isHighWaterSensorDry() [L694] COND FALSE !(\read(tmp)) [L697] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L699] retValue_acc = tmp___0 [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L568] tmp = isHighWaterLevel() [L570] COND TRUE \read(tmp) [L617] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L921] int tmp ; [L922] int tmp___0 ; [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L461] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L463] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L469] tmp = __VERIFIER_nondet_int() [L471] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L479] tmp___0 = __VERIFIER_nondet_int() [L481] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L489] tmp___2 = __VERIFIER_nondet_int() [L491] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L736] COND TRUE waterLevel > 0 [L737] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L541] COND TRUE \read(systemActive) [L589] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] COND TRUE \read(pumpRunning) [L630] int retValue_acc ; [L769] int retValue_acc ; [L772] retValue_acc = methaneLevelCritical [L773] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L634] retValue_acc = isMethaneLevelCritical() [L636] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] tmp = isMethaneAlarm() [L596] COND FALSE !(\read(tmp)) [L563] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L566] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L921] int tmp ; [L922] int tmp___0 ; [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L461] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L463] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L469] tmp = __VERIFIER_nondet_int() [L471] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L479] tmp___0 = __VERIFIER_nondet_int() [L481] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L489] tmp___2 = __VERIFIER_nondet_int() [L491] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L736] COND TRUE waterLevel > 0 [L737] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L541] COND TRUE \read(systemActive) [L589] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] COND TRUE \read(pumpRunning) [L630] int retValue_acc ; [L769] int retValue_acc ; [L772] retValue_acc = methaneLevelCritical [L773] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L634] retValue_acc = isMethaneLevelCritical() [L636] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] tmp = isMethaneAlarm() [L596] COND FALSE !(\read(tmp)) [L563] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L566] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L921] int tmp ; [L922] int tmp___0 ; [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L926] tmp = getWaterLevel() [L928] COND TRUE tmp == 0 [L641] int retValue_acc ; [L644] retValue_acc = pumpRunning [L645] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L930] tmp___0 = isPumpRunning() [L932] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L724] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1160 SDtfs, 2303 SDslu, 2339 SDs, 0 SdLazy, 399 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=674occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 3007 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 541 NumberOfCodeBlocks, 541 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 606 ConstructedInterpolants, 0 QuantifiedInterpolants, 93586 SizeOfPredicates, 26 NumberOfNonLiveVariables, 2812 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 85/139 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...