./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8 --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 d5cb34b3bc004bc03505bd03062aeeaad3499f75 ............................................................................................................................................ 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_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8 --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 d5cb34b3bc004bc03505bd03062aeeaad3499f75 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:56:10,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:56:10,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:56:10,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:56:10,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:56:10,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:56:10,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:56:10,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:56:10,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:56:10,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:56:10,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:56:10,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:56:10,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:56:10,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:56:10,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:56:10,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:56:10,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:56:10,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:56:10,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:56:10,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:56:10,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:56:10,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:56:10,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:56:10,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:56:10,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:56:10,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:56:10,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:56:10,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:56:10,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:56:10,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:56:10,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:56:10,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:56:10,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:56:10,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:56:10,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:56:10,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:56:10,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:56:10,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:56:10,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:56:10,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:56:10,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:56:10,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:56:11,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:56:11,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:56:11,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:56:11,063 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:56:11,063 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:56:11,063 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:56:11,064 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:56:11,064 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:56:11,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:56:11,073 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:56:11,074 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:56:11,075 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:56:11,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:56:11,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:56:11,076 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:56:11,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:56:11,077 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:56:11,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:56:11,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:56:11,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:56:11,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:56:11,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:56:11,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:56:11,079 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:56:11,079 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:56:11,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:56:11,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:56:11,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:56:11,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:56:11,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:56:11,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:56:11,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:56:11,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:56:11,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:56:11,084 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:56:11,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:56:11,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:56:11,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:56:11,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:56:11,086 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_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5cb34b3bc004bc03505bd03062aeeaad3499f75 [2021-10-13 06:56:11,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:56:11,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:56:11,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:56:11,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:56:11,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:56:11,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-13 06:56:11,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/2da833ebc/fd7d10dd134c424cb4a63439e3302cb5/FLAGd655b1d3d [2021-10-13 06:56:12,165 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:56:12,166 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-13 06:56:12,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/2da833ebc/fd7d10dd134c424cb4a63439e3302cb5/FLAGd655b1d3d [2021-10-13 06:56:12,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/2da833ebc/fd7d10dd134c424cb4a63439e3302cb5 [2021-10-13 06:56:12,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:56:12,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:56:12,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:56:12,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:56:12,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:56:12,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:56:12" (1/1) ... [2021-10-13 06:56:12,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428d4b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:12, skipping insertion in model container [2021-10-13 06:56:12,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:56:12" (1/1) ... [2021-10-13 06:56:12,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:56:12,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:56:12,964 WARN L228 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_ff2683c6-d570-45b5-8184-45a8adf3e39f/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18264,18277] [2021-10-13 06:56:12,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:56:12,998 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) [2021-10-13 06:56:12,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e6a8451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:12, skipping insertion in model container [2021-10-13 06:56:13,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:56:13,001 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 06:56:13,004 INFO L168 Benchmark]: Toolchain (without parser) took 524.28 ms. Allocated memory is still 138.4 MB. Free memory was 102.4 MB in the beginning and 111.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:56:13,006 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 56.6 MB in the beginning and 56.5 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:56:13,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.40 ms. Allocated memory is still 138.4 MB. Free memory was 102.1 MB in the beginning and 111.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:56:13,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 56.6 MB in the beginning and 56.5 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.40 ms. Allocated memory is still 138.4 MB. Free memory was 102.1 MB in the beginning and 111.7 MB in the end (delta: -9.6 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: 523]: 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 0.2.1-dev-4e77c04 [2021-10-13 06:56:15,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:56:15,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:56:15,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:56:15,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:56:15,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:56:15,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:56:15,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:56:15,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:56:15,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:56:15,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:56:15,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:56:15,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:56:15,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:56:15,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:56:15,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:56:15,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:56:15,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:56:15,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:56:15,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:56:15,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:56:15,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:56:15,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:56:15,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:56:15,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:56:15,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:56:15,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:56:15,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:56:15,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:56:15,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:56:15,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:56:15,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:56:15,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:56:15,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:56:15,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:56:15,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:56:15,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:56:15,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:56:15,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:56:15,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:56:15,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:56:15,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:56:15,993 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:56:15,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:56:15,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:56:15,995 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:56:15,995 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:56:15,996 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:56:15,996 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:56:15,996 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:56:15,997 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:56:15,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:56:16,000 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:56:16,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:56:16,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:56:16,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:56:16,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:56:16,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:56:16,001 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:56:16,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:56:16,002 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:56:16,002 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:56:16,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:56:16,003 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:56:16,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:56:16,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:56:16,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:56:16,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:56:16,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:56:16,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:56:16,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:56:16,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:56:16,005 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:56:16,005 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:56:16,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:56:16,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:56:16,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:56:16,007 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_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5cb34b3bc004bc03505bd03062aeeaad3499f75 [2021-10-13 06:56:16,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:56:16,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:56:16,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:56:16,502 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:56:16,503 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:56:16,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-13 06:56:16,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/78645da69/9b1f98c3e50d4dc2b1d55692cf4011e4/FLAGbf4ee85d9 [2021-10-13 06:56:17,399 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:56:17,399 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-13 06:56:17,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/78645da69/9b1f98c3e50d4dc2b1d55692cf4011e4/FLAGbf4ee85d9 [2021-10-13 06:56:17,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/data/78645da69/9b1f98c3e50d4dc2b1d55692cf4011e4 [2021-10-13 06:56:17,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:56:17,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:56:17,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:56:17,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:56:17,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:56:17,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:56:17" (1/1) ... [2021-10-13 06:56:17,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3125e8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:17, skipping insertion in model container [2021-10-13 06:56:17,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:56:17" (1/1) ... [2021-10-13 06:56:17,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:56:17,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:56:18,065 WARN L228 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_ff2683c6-d570-45b5-8184-45a8adf3e39f/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18264,18277] [2021-10-13 06:56:18,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:56:18,104 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 06:56:18,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:56:18,224 WARN L228 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_ff2683c6-d570-45b5-8184-45a8adf3e39f/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18264,18277] [2021-10-13 06:56:18,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:56:18,250 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:56:18,359 WARN L228 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_ff2683c6-d570-45b5-8184-45a8adf3e39f/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18264,18277] [2021-10-13 06:56:18,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:56:18,388 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:56:18,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18 WrapperNode [2021-10-13 06:56:18,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:56:18,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:56:18,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:56:18,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:56:18,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:56:18,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:56:18,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:56:18,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:56:18,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:56:18,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:56:18,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:56:18,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:56:18,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (1/1) ... [2021-10-13 06:56:18,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:56:18,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:56:18,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:56:18,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:56:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:56:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:56:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:56:18,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:56:21,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:56:21,619 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-13 06:56:21,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:56:21 BoogieIcfgContainer [2021-10-13 06:56:21,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:56:21,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:56:21,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:56:21,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:56:21,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:56:17" (1/3) ... [2021-10-13 06:56:21,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276f6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:56:21, skipping insertion in model container [2021-10-13 06:56:21,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:18" (2/3) ... [2021-10-13 06:56:21,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276f6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:56:21, skipping insertion in model container [2021-10-13 06:56:21,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:56:21" (3/3) ... [2021-10-13 06:56:21,630 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2021-10-13 06:56:21,637 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:56:21,637 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 06:56:21,717 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:56:21,723 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:56:21,723 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 06:56:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 122 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 06:56:21,751 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:21,752 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:21,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:21,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:21,761 INFO L82 PathProgramCache]: Analyzing trace with hash 641779472, now seen corresponding path program 1 times [2021-10-13 06:56:21,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:21,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498156187] [2021-10-13 06:56:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:21,780 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:21,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:21,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:21,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:56:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:22,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:56:22,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:22,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:22,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:22,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:22,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498156187] [2021-10-13 06:56:22,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498156187] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:22,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:22,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:56:22,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578678832] [2021-10-13 06:56:22,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:56:22,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:56:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:56:22,358 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 122 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:22,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:22,421 INFO L93 Difference]: Finished difference Result 240 states and 365 transitions. [2021-10-13 06:56:22,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:56:22,423 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 06:56:22,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:22,442 INFO L225 Difference]: With dead ends: 240 [2021-10-13 06:56:22,442 INFO L226 Difference]: Without dead ends: 119 [2021-10-13 06:56:22,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:56:22,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-13 06:56:22,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-13 06:56:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5) internal successors, (174), 118 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 174 transitions. [2021-10-13 06:56:22,519 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 174 transitions. Word has length 18 [2021-10-13 06:56:22,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:22,520 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 174 transitions. [2021-10-13 06:56:22,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 174 transitions. [2021-10-13 06:56:22,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 06:56:22,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:22,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:22,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:22,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:22,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:22,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:22,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1103918604, now seen corresponding path program 1 times [2021-10-13 06:56:22,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:22,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969286230] [2021-10-13 06:56:22,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:22,748 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:22,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:22,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:22,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:56:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:22,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:56:22,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:23,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:23,174 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:23,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969286230] [2021-10-13 06:56:23,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969286230] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:23,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:23,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:56:23,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68448147] [2021-10-13 06:56:23,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:56:23,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:23,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:56:23,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:56:23,183 INFO L87 Difference]: Start difference. First operand 119 states and 174 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:23,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:23,214 INFO L93 Difference]: Finished difference Result 119 states and 174 transitions. [2021-10-13 06:56:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:56:23,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 06:56:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:23,218 INFO L225 Difference]: With dead ends: 119 [2021-10-13 06:56:23,219 INFO L226 Difference]: Without dead ends: 49 [2021-10-13 06:56:23,220 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:56:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-13 06:56:23,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-13 06:56:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:23,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-13 06:56:23,236 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-10-13 06:56:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:23,237 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-13 06:56:23,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:23,237 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-13 06:56:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 06:56:23,239 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:23,245 INFO L512 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] [2021-10-13 06:56:23,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:23,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:23,459 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:23,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:23,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1148023213, now seen corresponding path program 1 times [2021-10-13 06:56:23,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:23,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288041187] [2021-10-13 06:56:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:23,461 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:23,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:23,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:23,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:56:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:23,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:56:23,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:23,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:23,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:23,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288041187] [2021-10-13 06:56:23,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288041187] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:23,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:23,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:56:23,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457747478] [2021-10-13 06:56:23,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:56:23,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:23,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:56:23,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:56:23,950 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:23,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:23,970 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2021-10-13 06:56:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:56:23,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 06:56:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:23,974 INFO L225 Difference]: With dead ends: 92 [2021-10-13 06:56:23,974 INFO L226 Difference]: Without dead ends: 49 [2021-10-13 06:56:23,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:56:23,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-13 06:56:23,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-13 06:56:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 48 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2021-10-13 06:56:23,990 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 24 [2021-10-13 06:56:23,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:23,990 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2021-10-13 06:56:23,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2021-10-13 06:56:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 06:56:23,994 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:23,995 INFO L512 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] [2021-10-13 06:56:24,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:24,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:24,211 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:24,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:24,212 INFO L82 PathProgramCache]: Analyzing trace with hash -43063729, now seen corresponding path program 1 times [2021-10-13 06:56:24,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:24,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415417855] [2021-10-13 06:56:24,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:24,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:24,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:24,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:56:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:24,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:56:24,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:24,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:24,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:24,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:24,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415417855] [2021-10-13 06:56:24,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415417855] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:24,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:24,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 06:56:24,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448050912] [2021-10-13 06:56:24,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:56:24,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:24,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:56:24,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:56:24,653 INFO L87 Difference]: Start difference. First operand 49 states and 70 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:24,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:24,721 INFO L93 Difference]: Finished difference Result 115 states and 167 transitions. [2021-10-13 06:56:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:56:24,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 06:56:24,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:24,723 INFO L225 Difference]: With dead ends: 115 [2021-10-13 06:56:24,723 INFO L226 Difference]: Without dead ends: 72 [2021-10-13 06:56:24,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:56:24,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-13 06:56:24,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2021-10-13 06:56:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 99 transitions. [2021-10-13 06:56:24,733 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 99 transitions. Word has length 26 [2021-10-13 06:56:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:24,733 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 99 transitions. [2021-10-13 06:56:24,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:24,734 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2021-10-13 06:56:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 06:56:24,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:24,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:24,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:24,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:24,951 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:24,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:24,951 INFO L82 PathProgramCache]: Analyzing trace with hash -743213728, now seen corresponding path program 1 times [2021-10-13 06:56:24,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:24,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609256037] [2021-10-13 06:56:24,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:24,953 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:24,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:24,954 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:24,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:56:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:25,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:25,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:25,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:25,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:25,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:25,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609256037] [2021-10-13 06:56:25,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609256037] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:25,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:25,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 06:56:25,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423508046] [2021-10-13 06:56:25,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 06:56:25,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:25,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 06:56:25,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:56:25,463 INFO L87 Difference]: Start difference. First operand 70 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:25,548 INFO L93 Difference]: Finished difference Result 187 states and 263 transitions. [2021-10-13 06:56:25,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 06:56:25,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-13 06:56:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:25,551 INFO L225 Difference]: With dead ends: 187 [2021-10-13 06:56:25,551 INFO L226 Difference]: Without dead ends: 123 [2021-10-13 06:56:25,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 06:56:25,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-13 06:56:25,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 76. [2021-10-13 06:56:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2021-10-13 06:56:25,562 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 32 [2021-10-13 06:56:25,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:25,563 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2021-10-13 06:56:25,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:25,563 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2021-10-13 06:56:25,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 06:56:25,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:25,565 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:25,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:25,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:25,779 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:25,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1870609821, now seen corresponding path program 1 times [2021-10-13 06:56:25,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:25,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317254096] [2021-10-13 06:56:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:25,780 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:25,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:25,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:25,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 06:56:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:26,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:26,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:26,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:26,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:26,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317254096] [2021-10-13 06:56:26,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317254096] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:26,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:26,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 06:56:26,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75296809] [2021-10-13 06:56:26,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:56:26,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:26,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:56:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:56:26,453 INFO L87 Difference]: Start difference. First operand 76 states and 105 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:26,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:26,975 INFO L93 Difference]: Finished difference Result 841 states and 1196 transitions. [2021-10-13 06:56:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 06:56:26,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-13 06:56:26,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:26,982 INFO L225 Difference]: With dead ends: 841 [2021-10-13 06:56:26,982 INFO L226 Difference]: Without dead ends: 771 [2021-10-13 06:56:26,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 174.4ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 06:56:26,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2021-10-13 06:56:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 186. [2021-10-13 06:56:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2021-10-13 06:56:27,042 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 32 [2021-10-13 06:56:27,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:27,043 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2021-10-13 06:56:27,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:27,043 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2021-10-13 06:56:27,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 06:56:27,052 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:27,053 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:27,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:27,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:27,273 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:27,274 INFO L82 PathProgramCache]: Analyzing trace with hash 342193695, now seen corresponding path program 1 times [2021-10-13 06:56:27,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:27,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500995192] [2021-10-13 06:56:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:27,275 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:27,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:27,276 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:27,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 06:56:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:27,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 06:56:27,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:27,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:27,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:27,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:27,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500995192] [2021-10-13 06:56:27,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500995192] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:27,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:27,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 06:56:27,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402924397] [2021-10-13 06:56:27,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:56:27,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:27,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:56:27,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:56:27,916 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:28,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:28,001 INFO L93 Difference]: Finished difference Result 470 states and 656 transitions. [2021-10-13 06:56:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 06:56:28,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 06:56:28,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:28,004 INFO L225 Difference]: With dead ends: 470 [2021-10-13 06:56:28,005 INFO L226 Difference]: Without dead ends: 337 [2021-10-13 06:56:28,005 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:56:28,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-13 06:56:28,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 184. [2021-10-13 06:56:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.3715846994535519) internal successors, (251), 183 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions. [2021-10-13 06:56:28,042 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 33 [2021-10-13 06:56:28,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:28,043 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 251 transitions. [2021-10-13 06:56:28,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:28,043 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions. [2021-10-13 06:56:28,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 06:56:28,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:28,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:28,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:28,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:28,260 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:28,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1727755226, now seen corresponding path program 1 times [2021-10-13 06:56:28,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:28,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35185090] [2021-10-13 06:56:28,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:28,263 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:28,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:28,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:28,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 06:56:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:28,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:28,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:28,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:28,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:28,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35185090] [2021-10-13 06:56:28,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35185090] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:28,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:28,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 06:56:28,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327691716] [2021-10-13 06:56:28,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:56:28,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:28,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:56:28,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:56:28,823 INFO L87 Difference]: Start difference. First operand 184 states and 251 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:30,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:30,779 INFO L93 Difference]: Finished difference Result 519 states and 720 transitions. [2021-10-13 06:56:30,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 06:56:30,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 06:56:30,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:30,787 INFO L225 Difference]: With dead ends: 519 [2021-10-13 06:56:30,787 INFO L226 Difference]: Without dead ends: 341 [2021-10-13 06:56:30,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 93.0ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-13 06:56:30,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-10-13 06:56:30,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 155. [2021-10-13 06:56:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.3181818181818181) internal successors, (203), 154 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2021-10-13 06:56:30,817 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 33 [2021-10-13 06:56:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:30,817 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2021-10-13 06:56:30,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2021-10-13 06:56:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 06:56:30,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:30,819 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:30,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:31,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:31,037 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:31,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:31,037 INFO L82 PathProgramCache]: Analyzing trace with hash 600359133, now seen corresponding path program 1 times [2021-10-13 06:56:31,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:31,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870848502] [2021-10-13 06:56:31,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:31,038 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:31,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:31,040 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:31,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 06:56:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:31,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:31,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:31,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:31,557 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:31,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870848502] [2021-10-13 06:56:31,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870848502] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:31,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:31,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 06:56:31,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542961864] [2021-10-13 06:56:31,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:56:31,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:56:31,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:56:31,559 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:31,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:31,661 INFO L93 Difference]: Finished difference Result 415 states and 551 transitions. [2021-10-13 06:56:31,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 06:56:31,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 06:56:31,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:31,664 INFO L225 Difference]: With dead ends: 415 [2021-10-13 06:56:31,664 INFO L226 Difference]: Without dead ends: 266 [2021-10-13 06:56:31,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 63.8ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-13 06:56:31,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-13 06:56:31,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 155. [2021-10-13 06:56:31,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.2987012987012987) internal successors, (200), 154 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2021-10-13 06:56:31,690 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 33 [2021-10-13 06:56:31,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:31,692 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2021-10-13 06:56:31,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:31,693 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2021-10-13 06:56:31,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 06:56:31,695 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:31,696 INFO L512 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, 1, 1, 1] [2021-10-13 06:56:31,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:31,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:31,911 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:31,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:31,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1913049859, now seen corresponding path program 1 times [2021-10-13 06:56:31,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:31,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458692976] [2021-10-13 06:56:31,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:31,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:31,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:31,915 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:31,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 06:56:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:32,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:56:32,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 06:56:32,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:32,711 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 06:56:32,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:32,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458692976] [2021-10-13 06:56:32,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458692976] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:32,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:32,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 06:56:32,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491135082] [2021-10-13 06:56:32,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 06:56:32,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:32,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 06:56:32,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 06:56:32,714 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:36,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:36,087 INFO L93 Difference]: Finished difference Result 519 states and 694 transitions. [2021-10-13 06:56:36,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 06:56:36,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-13 06:56:36,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:36,092 INFO L225 Difference]: With dead ends: 519 [2021-10-13 06:56:36,092 INFO L226 Difference]: Without dead ends: 417 [2021-10-13 06:56:36,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 06:56:36,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-13 06:56:36,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 351. [2021-10-13 06:56:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.3114285714285714) internal successors, (459), 350 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 459 transitions. [2021-10-13 06:56:36,158 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 459 transitions. Word has length 53 [2021-10-13 06:56:36,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:36,158 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 459 transitions. [2021-10-13 06:56:36,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:36,159 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 459 transitions. [2021-10-13 06:56:36,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 06:56:36,160 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:36,160 INFO L512 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, 1, 1, 1] [2021-10-13 06:56:36,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:36,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:36,374 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:36,374 INFO L82 PathProgramCache]: Analyzing trace with hash -330933439, now seen corresponding path program 1 times [2021-10-13 06:56:36,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:36,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733508935] [2021-10-13 06:56:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:36,375 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:36,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:36,375 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:36,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 06:56:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:36,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:36,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:36,892 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:36,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:37,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:37,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733508935] [2021-10-13 06:56:37,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733508935] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:37,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:37,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 06:56:37,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793364650] [2021-10-13 06:56:37,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 06:56:37,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 06:56:37,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:56:37,080 INFO L87 Difference]: Start difference. First operand 351 states and 459 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:37,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:37,411 INFO L93 Difference]: Finished difference Result 1844 states and 2379 transitions. [2021-10-13 06:56:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 06:56:37,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-13 06:56:37,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:37,420 INFO L225 Difference]: With dead ends: 1844 [2021-10-13 06:56:37,421 INFO L226 Difference]: Without dead ends: 1499 [2021-10-13 06:56:37,422 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 54.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 06:56:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2021-10-13 06:56:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 694. [2021-10-13 06:56:37,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.274170274170274) internal successors, (883), 693 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 883 transitions. [2021-10-13 06:56:37,552 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 883 transitions. Word has length 53 [2021-10-13 06:56:37,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:37,552 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 883 transitions. [2021-10-13 06:56:37,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:37,552 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 883 transitions. [2021-10-13 06:56:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-13 06:56:37,553 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:37,554 INFO L512 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:37,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:37,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:37,767 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:37,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:37,767 INFO L82 PathProgramCache]: Analyzing trace with hash -454216901, now seen corresponding path program 1 times [2021-10-13 06:56:37,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:37,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638998325] [2021-10-13 06:56:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:37,768 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:37,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:37,768 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:37,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 06:56:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:38,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:56:38,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 06:56:38,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 06:56:38,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:38,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638998325] [2021-10-13 06:56:38,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638998325] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:38,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [749774507] [2021-10-13 06:56:38,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:38,595 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:56:38,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:56:38,600 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:56:38,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-13 06:56:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:39,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:39,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:39,279 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 06:56:39,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 06:56:39,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [749774507] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:39,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 06:56:39,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-10-13 06:56:39,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450195564] [2021-10-13 06:56:39,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 06:56:39,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:39,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 06:56:39,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-13 06:56:39,399 INFO L87 Difference]: Start difference. First operand 694 states and 883 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:39,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:39,700 INFO L93 Difference]: Finished difference Result 1588 states and 2039 transitions. [2021-10-13 06:56:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 06:56:39,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-13 06:56:39,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:39,709 INFO L225 Difference]: With dead ends: 1588 [2021-10-13 06:56:39,710 INFO L226 Difference]: Without dead ends: 990 [2021-10-13 06:56:39,711 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-13 06:56:39,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2021-10-13 06:56:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 718. [2021-10-13 06:56:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 1.2649930264993026) internal successors, (907), 717 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 907 transitions. [2021-10-13 06:56:39,894 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 907 transitions. Word has length 54 [2021-10-13 06:56:39,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:39,896 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 907 transitions. [2021-10-13 06:56:39,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 907 transitions. [2021-10-13 06:56:39,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-13 06:56:39,898 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:39,898 INFO L512 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:39,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:40,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-10-13 06:56:40,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 06:56:40,314 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:40,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:40,314 INFO L82 PathProgramCache]: Analyzing trace with hash -196051463, now seen corresponding path program 1 times [2021-10-13 06:56:40,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:40,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772632191] [2021-10-13 06:56:40,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:40,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:40,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:40,317 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:40,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 06:56:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:40,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:40,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:40,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:41,220 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:41,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:41,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772632191] [2021-10-13 06:56:41,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772632191] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:41,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1367347649] [2021-10-13 06:56:41,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:41,222 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:56:41,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:56:41,229 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:56:41,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-13 06:56:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:41,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 06:56:41,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:41,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:42,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1367347649] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:42,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765069568] [2021-10-13 06:56:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:42,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:56:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:56:42,118 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:56:42,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 06:56:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:42,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:56:42,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:42,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:42,974 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:42,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765069568] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:42,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 06:56:42,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-10-13 06:56:42,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996771914] [2021-10-13 06:56:42,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:56:42,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:42,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:56:42,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:56:42,980 INFO L87 Difference]: Start difference. First operand 718 states and 907 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:44,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:44,625 INFO L93 Difference]: Finished difference Result 1758 states and 2207 transitions. [2021-10-13 06:56:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 06:56:44,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-13 06:56:44,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:44,633 INFO L225 Difference]: With dead ends: 1758 [2021-10-13 06:56:44,633 INFO L226 Difference]: Without dead ends: 1046 [2021-10-13 06:56:44,635 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 73.7ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-13 06:56:44,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-10-13 06:56:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 633. [2021-10-13 06:56:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 632 states have (on average 1.231012658227848) internal successors, (778), 632 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 778 transitions. [2021-10-13 06:56:44,757 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 778 transitions. Word has length 54 [2021-10-13 06:56:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:44,757 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 778 transitions. [2021-10-13 06:56:44,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 778 transitions. [2021-10-13 06:56:44,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 06:56:44,759 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:44,759 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:56:44,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:44,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-13 06:56:45,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:45,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:45,363 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:45,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1751298828, now seen corresponding path program 1 times [2021-10-13 06:56:45,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:45,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511511421] [2021-10-13 06:56:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:45,363 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:45,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:45,365 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:45,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 06:56:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:45,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 06:56:45,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:45,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:56:46,204 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:46,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511511421] [2021-10-13 06:56:46,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511511421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:46,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:46,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 06:56:46,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384660382] [2021-10-13 06:56:46,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 06:56:46,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:46,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 06:56:46,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 06:56:46,207 INFO L87 Difference]: Start difference. First operand 633 states and 778 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:48,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:48,444 INFO L93 Difference]: Finished difference Result 2455 states and 3007 transitions. [2021-10-13 06:56:48,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 06:56:48,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-13 06:56:48,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:48,457 INFO L225 Difference]: With dead ends: 2455 [2021-10-13 06:56:48,458 INFO L226 Difference]: Without dead ends: 1914 [2021-10-13 06:56:48,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 89.9ms TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-10-13 06:56:48,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-10-13 06:56:48,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 811. [2021-10-13 06:56:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 810 states have (on average 1.2209876543209877) internal successors, (989), 810 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:48,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 989 transitions. [2021-10-13 06:56:48,599 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 989 transitions. Word has length 55 [2021-10-13 06:56:48,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:48,599 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 989 transitions. [2021-10-13 06:56:48,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:48,600 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 989 transitions. [2021-10-13 06:56:48,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 06:56:48,601 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:48,602 INFO L512 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, 1, 1, 1, 1, 1] [2021-10-13 06:56:48,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:48,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:48,822 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:48,823 INFO L82 PathProgramCache]: Analyzing trace with hash -632394713, now seen corresponding path program 1 times [2021-10-13 06:56:48,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:48,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802152312] [2021-10-13 06:56:48,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:48,823 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:48,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:48,824 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:48,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 06:56:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:49,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:56:49,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:49,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:49,712 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:49,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802152312] [2021-10-13 06:56:49,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802152312] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:49,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1259138049] [2021-10-13 06:56:49,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:49,712 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:56:49,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:56:49,713 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:56:49,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-13 06:56:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:50,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:56:50,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:50,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:50,719 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:50,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1259138049] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:50,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569807731] [2021-10-13 06:56:50,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:50,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:56:50,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:56:50,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:56:50,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-13 06:56:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:51,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:56:51,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:51,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 06:56:51,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569807731] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:51,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 06:56:51,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-13 06:56:51,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232892388] [2021-10-13 06:56:51,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 06:56:51,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:51,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 06:56:51,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-13 06:56:51,639 INFO L87 Difference]: Start difference. First operand 811 states and 989 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:54,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:54,403 INFO L93 Difference]: Finished difference Result 5152 states and 6370 transitions. [2021-10-13 06:56:54,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 06:56:54,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-13 06:56:54,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:54,444 INFO L225 Difference]: With dead ends: 5152 [2021-10-13 06:56:54,444 INFO L226 Difference]: Without dead ends: 4433 [2021-10-13 06:56:54,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 298.1ms TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2021-10-13 06:56:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2021-10-13 06:56:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 986. [2021-10-13 06:56:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 1.233502538071066) internal successors, (1215), 985 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1215 transitions. [2021-10-13 06:56:54,692 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1215 transitions. Word has length 55 [2021-10-13 06:56:54,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:54,692 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1215 transitions. [2021-10-13 06:56:54,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1215 transitions. [2021-10-13 06:56:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 06:56:54,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:54,696 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 06:56:54,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:54,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-10-13 06:56:55,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:55,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:55,314 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:55,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1423760697, now seen corresponding path program 1 times [2021-10-13 06:56:55,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:55,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396594240] [2021-10-13 06:56:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:55,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:55,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:55,316 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:55,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-13 06:56:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:55,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 06:56:55,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-13 06:56:56,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-13 06:56:56,344 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:56,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396594240] [2021-10-13 06:56:56,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396594240] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:56:56,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:56:56,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 06:56:56,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108116433] [2021-10-13 06:56:56,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 06:56:56,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:56:56,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 06:56:56,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 06:56:56,347 INFO L87 Difference]: Start difference. First operand 986 states and 1215 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:56,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:56:56,500 INFO L93 Difference]: Finished difference Result 2102 states and 2600 transitions. [2021-10-13 06:56:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:56:56,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 06:56:56,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:56:56,506 INFO L225 Difference]: With dead ends: 2102 [2021-10-13 06:56:56,507 INFO L226 Difference]: Without dead ends: 1122 [2021-10-13 06:56:56,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 06:56:56,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2021-10-13 06:56:56,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 936. [2021-10-13 06:56:56,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 935 states have (on average 1.2310160427807486) internal successors, (1151), 935 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1151 transitions. [2021-10-13 06:56:56,642 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1151 transitions. Word has length 96 [2021-10-13 06:56:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:56:56,642 INFO L470 AbstractCegarLoop]: Abstraction has 936 states and 1151 transitions. [2021-10-13 06:56:56,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:56:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1151 transitions. [2021-10-13 06:56:56,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-13 06:56:56,645 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:56:56,646 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-10-13 06:56:56,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-13 06:56:56,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:56:56,860 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:56:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:56:56,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2011476516, now seen corresponding path program 1 times [2021-10-13 06:56:56,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:56:56,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052359818] [2021-10-13 06:56:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:56,862 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:56:56,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:56:56,864 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:56:56,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 06:56:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:57,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:56:57,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:57,945 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 6 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-13 06:56:57,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:56:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 6 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-13 06:56:58,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:56:58,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052359818] [2021-10-13 06:56:58,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052359818] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:56:58,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [609144813] [2021-10-13 06:56:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:56:58,333 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:56:58,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:56:58,335 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:56:58,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-10-13 06:56:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:56:59,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 06:56:59,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:56:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 06:56:59,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:57:00,104 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 06:57:00,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [609144813] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:57:00,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640778660] [2021-10-13 06:57:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:57:00,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:57:00,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:57:00,105 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:57:00,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-13 06:57:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:57:00,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 06:57:00,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:57:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-13 06:57:01,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:57:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-13 06:57:01,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640778660] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:57:01,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-13 06:57:01,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 8, 8, 8] total 24 [2021-10-13 06:57:01,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590194214] [2021-10-13 06:57:01,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:57:01,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:57:01,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:57:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2021-10-13 06:57:01,771 INFO L87 Difference]: Start difference. First operand 936 states and 1151 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:57:06,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:57:06,299 INFO L93 Difference]: Finished difference Result 2941 states and 3657 transitions. [2021-10-13 06:57:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 06:57:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-10-13 06:57:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:57:06,308 INFO L225 Difference]: With dead ends: 2941 [2021-10-13 06:57:06,308 INFO L226 Difference]: Without dead ends: 2011 [2021-10-13 06:57:06,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 678.0ms TimeCoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 06:57:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2021-10-13 06:57:06,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1127. [2021-10-13 06:57:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.2344582593250444) internal successors, (1390), 1126 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:57:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1390 transitions. [2021-10-13 06:57:06,495 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1390 transitions. Word has length 118 [2021-10-13 06:57:06,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:57:06,495 INFO L470 AbstractCegarLoop]: Abstraction has 1127 states and 1390 transitions. [2021-10-13 06:57:06,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:57:06,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1390 transitions. [2021-10-13 06:57:06,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-13 06:57:06,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:57:06,498 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-10-13 06:57:06,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-13 06:57:06,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-10-13 06:57:06,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2021-10-13 06:57:07,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 06:57:07,099 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:57:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:57:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1985123616, now seen corresponding path program 2 times [2021-10-13 06:57:07,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:57:07,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168477576] [2021-10-13 06:57:07,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 06:57:07,101 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:57:07,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:57:07,102 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:57:07,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-13 06:57:09,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 06:57:09,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 06:57:09,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:57:09,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:57:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 06:57:09,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:57:09,821 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 06:57:09,822 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:57:09,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168477576] [2021-10-13 06:57:09,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168477576] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:57:09,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:57:09,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 06:57:09,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909904024] [2021-10-13 06:57:09,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:57:09,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:57:09,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:57:09,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:57:09,824 INFO L87 Difference]: Start difference. First operand 1127 states and 1390 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:57:09,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:57:09,906 INFO L93 Difference]: Finished difference Result 1431 states and 1754 transitions. [2021-10-13 06:57:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 06:57:09,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-10-13 06:57:09,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:57:09,907 INFO L225 Difference]: With dead ends: 1431 [2021-10-13 06:57:09,907 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 06:57:09,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 47.1ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-13 06:57:09,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 06:57:09,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 06:57:09,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:57:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 06:57:09,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 118 [2021-10-13 06:57:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:57:09,910 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 06:57:09,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:57:09,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 06:57:09,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 06:57:09,913 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:57:09,914 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:57:09,914 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:57:09,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-13 06:57:10,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:57:10,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 06:57:10,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:10,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:10,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:10,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:10,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:11,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:12,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:13,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:14,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:14,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:14,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:14,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:14,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:57:25,607 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2021-10-13 06:57:25,608 INFO L857 garLoopResultBuilder]: For program point L961(line 961) no Hoare annotation was computed. [2021-10-13 06:57:25,608 INFO L857 garLoopResultBuilder]: For program point L961-1(line 961) no Hoare annotation was computed. [2021-10-13 06:57:25,608 INFO L857 garLoopResultBuilder]: For program point L961-2(line 961) no Hoare annotation was computed. [2021-10-13 06:57:25,608 INFO L857 garLoopResultBuilder]: For program point L335(lines 335 348) no Hoare annotation was computed. [2021-10-13 06:57:25,609 INFO L853 garLoopResultBuilder]: At program point L335-1(lines 1 964) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse12 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse8 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv1 32))) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse10 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse11 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32)) .cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse6 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) .cse7) (and .cse1 .cse8 .cse6 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse4 .cse6 .cse9 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse8 .cse5 .cse6 .cse10 .cse11 .cse7))) [2021-10-13 06:57:25,609 INFO L857 garLoopResultBuilder]: For program point L335-2(lines 335 348) no Hoare annotation was computed. [2021-10-13 06:57:25,609 INFO L853 garLoopResultBuilder]: At program point L335-3(lines 1 964) the Hoare annotation is: false [2021-10-13 06:57:25,609 INFO L857 garLoopResultBuilder]: For program point L335-4(lines 335 348) no Hoare annotation was computed. [2021-10-13 06:57:25,610 INFO L853 garLoopResultBuilder]: At program point L335-5(lines 1 964) the Hoare annotation is: false [2021-10-13 06:57:25,610 INFO L853 garLoopResultBuilder]: At program point L171(lines 166 174) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) [2021-10-13 06:57:25,610 INFO L853 garLoopResultBuilder]: At program point L171-1(lines 166 174) the Hoare annotation is: false [2021-10-13 06:57:25,610 INFO L853 garLoopResultBuilder]: At program point L171-2(lines 166 174) the Hoare annotation is: false [2021-10-13 06:57:25,611 INFO L857 garLoopResultBuilder]: For program point L437(lines 437 443) no Hoare annotation was computed. [2021-10-13 06:57:25,611 INFO L857 garLoopResultBuilder]: For program point L437-1(lines 437 443) no Hoare annotation was computed. [2021-10-13 06:57:25,611 INFO L857 garLoopResultBuilder]: For program point L437-2(lines 437 443) no Hoare annotation was computed. [2021-10-13 06:57:25,611 INFO L857 garLoopResultBuilder]: For program point L437-3(lines 437 443) no Hoare annotation was computed. [2021-10-13 06:57:25,611 INFO L857 garLoopResultBuilder]: For program point L437-4(lines 437 443) no Hoare annotation was computed. [2021-10-13 06:57:25,611 INFO L857 garLoopResultBuilder]: For program point L437-5(lines 437 443) no Hoare annotation was computed. [2021-10-13 06:57:25,612 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 243) no Hoare annotation was computed. [2021-10-13 06:57:25,612 INFO L857 garLoopResultBuilder]: For program point L239-2(lines 239 243) no Hoare annotation was computed. [2021-10-13 06:57:25,612 INFO L857 garLoopResultBuilder]: For program point L239-3(lines 239 243) no Hoare annotation was computed. [2021-10-13 06:57:25,612 INFO L857 garLoopResultBuilder]: For program point L239-5(lines 239 243) no Hoare annotation was computed. [2021-10-13 06:57:25,612 INFO L857 garLoopResultBuilder]: For program point L239-6(lines 239 243) no Hoare annotation was computed. [2021-10-13 06:57:25,613 INFO L857 garLoopResultBuilder]: For program point L239-8(lines 239 243) no Hoare annotation was computed. [2021-10-13 06:57:25,613 INFO L857 garLoopResultBuilder]: For program point L372(lines 372 376) no Hoare annotation was computed. [2021-10-13 06:57:25,613 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 345) no Hoare annotation was computed. [2021-10-13 06:57:25,613 INFO L857 garLoopResultBuilder]: For program point L273(lines 273 279) no Hoare annotation was computed. [2021-10-13 06:57:25,613 INFO L857 garLoopResultBuilder]: For program point L339-2(lines 339 345) no Hoare annotation was computed. [2021-10-13 06:57:25,614 INFO L853 garLoopResultBuilder]: At program point L273-1(lines 273 279) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv1 32))) (.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse8 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse9 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse10 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse11 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse12 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse6 .cse7 .cse8 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse7 .cse8 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse9 .cse0 .cse10 .cse1 .cse5 .cse11 .cse3 .cse7 .cse8 .cse12) (and .cse9 .cse0 .cse10 .cse1 .cse2 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32)) .cse11 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse3 .cse12))) [2021-10-13 06:57:25,614 INFO L857 garLoopResultBuilder]: For program point L339-4(lines 339 345) no Hoare annotation was computed. [2021-10-13 06:57:25,614 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2021-10-13 06:57:25,614 INFO L853 garLoopResultBuilder]: At program point L309(lines 262 310) the Hoare annotation is: false [2021-10-13 06:57:25,614 INFO L853 garLoopResultBuilder]: At program point L442(lines 433 446) the Hoare annotation is: false [2021-10-13 06:57:25,615 INFO L853 garLoopResultBuilder]: At program point L442-1(lines 433 446) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse3 .cse7 .cse8 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse7 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8 .cse5))) [2021-10-13 06:57:25,615 INFO L853 garLoopResultBuilder]: At program point L442-2(lines 433 446) the Hoare annotation is: false [2021-10-13 06:57:25,615 INFO L853 garLoopResultBuilder]: At program point L442-3(lines 433 446) the Hoare annotation is: false [2021-10-13 06:57:25,615 INFO L853 garLoopResultBuilder]: At program point L442-4(lines 433 446) the Hoare annotation is: false [2021-10-13 06:57:25,616 INFO L853 garLoopResultBuilder]: At program point L442-5(lines 433 446) the Hoare annotation is: false [2021-10-13 06:57:25,616 INFO L853 garLoopResultBuilder]: At program point L872-2(lines 872 886) the Hoare annotation is: false [2021-10-13 06:57:25,616 INFO L853 garLoopResultBuilder]: At program point L245(lines 230 248) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32))) (.cse7 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isLowWaterLevel_~tmp~3 (_ bv0 32))) (.cse9 (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse10) (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2021-10-13 06:57:25,616 INFO L853 garLoopResultBuilder]: At program point L245-1(lines 230 248) the Hoare annotation is: false [2021-10-13 06:57:25,616 INFO L853 garLoopResultBuilder]: At program point L245-2(lines 230 248) the Hoare annotation is: false [2021-10-13 06:57:25,617 INFO L857 garLoopResultBuilder]: For program point L873(line 873) no Hoare annotation was computed. [2021-10-13 06:57:25,617 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 880) no Hoare annotation was computed. [2021-10-13 06:57:25,617 INFO L857 garLoopResultBuilder]: For program point L876-1(lines 60 66) no Hoare annotation was computed. [2021-10-13 06:57:25,617 INFO L857 garLoopResultBuilder]: For program point L943(lines 943 950) no Hoare annotation was computed. [2021-10-13 06:57:25,617 INFO L860 garLoopResultBuilder]: At program point L943-1(lines 943 950) the Hoare annotation is: true [2021-10-13 06:57:25,617 INFO L857 garLoopResultBuilder]: For program point L283(lines 283 289) no Hoare annotation was computed. [2021-10-13 06:57:25,618 INFO L853 garLoopResultBuilder]: At program point L283-1(lines 283 289) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse8 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse9 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse0 .cse3 .cse6 .cse5 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse0 .cse8 .cse1 .cse2 .cse9 .cse3 .cse10) (and .cse7 .cse0 .cse8 .cse1 .cse9 .cse3 .cse5 .cse10))) [2021-10-13 06:57:25,618 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 135) no Hoare annotation was computed. [2021-10-13 06:57:25,618 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 118 135) no Hoare annotation was computed. [2021-10-13 06:57:25,618 INFO L857 garLoopResultBuilder]: For program point L118-2(lines 118 135) no Hoare annotation was computed. [2021-10-13 06:57:25,618 INFO L853 garLoopResultBuilder]: At program point L482(lines 1 964) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 06:57:25,619 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 06:57:25,619 INFO L857 garLoopResultBuilder]: For program point L384(lines 384 388) no Hoare annotation was computed. [2021-10-13 06:57:25,619 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,619 INFO L857 garLoopResultBuilder]: For program point L220-2(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,619 INFO L857 garLoopResultBuilder]: For program point L220-3(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,620 INFO L857 garLoopResultBuilder]: For program point L220-5(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,620 INFO L857 garLoopResultBuilder]: For program point L220-6(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,620 INFO L857 garLoopResultBuilder]: For program point L220-8(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,620 INFO L857 garLoopResultBuilder]: For program point L220-9(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,620 INFO L857 garLoopResultBuilder]: For program point L220-11(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,620 INFO L857 garLoopResultBuilder]: For program point L220-12(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,621 INFO L857 garLoopResultBuilder]: For program point L220-14(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,621 INFO L857 garLoopResultBuilder]: For program point L220-15(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,621 INFO L857 garLoopResultBuilder]: For program point L220-17(lines 220 224) no Hoare annotation was computed. [2021-10-13 06:57:25,621 INFO L853 garLoopResultBuilder]: At program point L452(lines 447 455) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse7))) [2021-10-13 06:57:25,621 INFO L853 garLoopResultBuilder]: At program point L452-1(lines 447 455) the Hoare annotation is: false [2021-10-13 06:57:25,622 INFO L853 garLoopResultBuilder]: At program point L452-2(lines 447 455) the Hoare annotation is: false [2021-10-13 06:57:25,622 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 130) no Hoare annotation was computed. [2021-10-13 06:57:25,622 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 122 130) no Hoare annotation was computed. [2021-10-13 06:57:25,622 INFO L857 garLoopResultBuilder]: For program point L122-2(lines 122 130) no Hoare annotation was computed. [2021-10-13 06:57:25,622 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 06:57:25,622 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 109) no Hoare annotation was computed. [2021-10-13 06:57:25,623 INFO L857 garLoopResultBuilder]: For program point L92-1(lines 92 109) no Hoare annotation was computed. [2021-10-13 06:57:25,623 INFO L857 garLoopResultBuilder]: For program point L92-2(lines 92 109) no Hoare annotation was computed. [2021-10-13 06:57:25,623 INFO L857 garLoopResultBuilder]: For program point L92-3(lines 92 109) no Hoare annotation was computed. [2021-10-13 06:57:25,623 INFO L857 garLoopResultBuilder]: For program point L92-4(lines 92 109) no Hoare annotation was computed. [2021-10-13 06:57:25,623 INFO L857 garLoopResultBuilder]: For program point L92-5(lines 92 109) no Hoare annotation was computed. [2021-10-13 06:57:25,624 INFO L853 garLoopResultBuilder]: At program point L60(lines 59 78) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse8 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse9 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse2 .cse7 .cse3 .cse8 .cse9) (and .cse0 .cse1 .cse3 .cse10 .cse4) (and .cse0 .cse3 .cse8 .cse10 .cse4) (and .cse0 .cse2 .cse3 .cse8 .cse4) (and .cse5 .cse0 .cse6 .cse7 .cse3 .cse8 .cse10 .cse9))) [2021-10-13 06:57:25,624 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 60 66) no Hoare annotation was computed. [2021-10-13 06:57:25,624 INFO L853 garLoopResultBuilder]: At program point L60-2(lines 59 78) the Hoare annotation is: false [2021-10-13 06:57:25,624 INFO L853 garLoopResultBuilder]: At program point L60-3(lines 59 78) the Hoare annotation is: false [2021-10-13 06:57:25,624 INFO L860 garLoopResultBuilder]: At program point L952(lines 933 955) the Hoare annotation is: true [2021-10-13 06:57:25,624 INFO L853 garLoopResultBuilder]: At program point L490(lines 485 493) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 06:57:25,625 INFO L853 garLoopResultBuilder]: At program point L226(lines 211 229) the Hoare annotation is: false [2021-10-13 06:57:25,625 INFO L853 garLoopResultBuilder]: At program point L226-1(lines 211 229) the Hoare annotation is: (let ((.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse9 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse10 (= ~waterLevel~0 (_ bv2 32))) (.cse11 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse12 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse13 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse14 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv1 32))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse0 .cse10 .cse11 .cse4 .cse12 .cse7 .cse8 .cse13) (and .cse9 .cse0 .cse10 .cse14 .cse11 .cse4 .cse12 .cse8 .cse13) (and .cse0 .cse1 .cse14 .cse2 .cse3 .cse4 .cse5 .cse6 .cse8))) [2021-10-13 06:57:25,625 INFO L853 garLoopResultBuilder]: At program point L226-2(lines 211 229) the Hoare annotation is: false [2021-10-13 06:57:25,625 INFO L853 garLoopResultBuilder]: At program point L226-3(lines 211 229) the Hoare annotation is: false [2021-10-13 06:57:25,625 INFO L853 garLoopResultBuilder]: At program point L226-4(lines 211 229) the Hoare annotation is: false [2021-10-13 06:57:25,626 INFO L853 garLoopResultBuilder]: At program point L226-5(lines 211 229) the Hoare annotation is: false [2021-10-13 06:57:25,626 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 06:57:25,626 INFO L853 garLoopResultBuilder]: At program point L920(lines 916 922) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 06:57:25,626 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 304) no Hoare annotation was computed. [2021-10-13 06:57:25,626 INFO L857 garLoopResultBuilder]: For program point L360(lines 360 364) no Hoare annotation was computed. [2021-10-13 06:57:25,627 INFO L857 garLoopResultBuilder]: For program point L360-3(lines 360 364) no Hoare annotation was computed. [2021-10-13 06:57:25,627 INFO L857 garLoopResultBuilder]: For program point L360-6(lines 360 364) no Hoare annotation was computed. [2021-10-13 06:57:25,627 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 104) no Hoare annotation was computed. [2021-10-13 06:57:25,627 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 96 104) no Hoare annotation was computed. [2021-10-13 06:57:25,627 INFO L857 garLoopResultBuilder]: For program point L96-2(lines 96 104) no Hoare annotation was computed. [2021-10-13 06:57:25,627 INFO L857 garLoopResultBuilder]: For program point L96-3(lines 96 104) no Hoare annotation was computed. [2021-10-13 06:57:25,628 INFO L857 garLoopResultBuilder]: For program point L96-4(lines 96 104) no Hoare annotation was computed. [2021-10-13 06:57:25,628 INFO L857 garLoopResultBuilder]: For program point L96-5(lines 96 104) no Hoare annotation was computed. [2021-10-13 06:57:25,628 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 349) no Hoare annotation was computed. [2021-10-13 06:57:25,628 INFO L857 garLoopResultBuilder]: For program point L329-2(lines 329 349) no Hoare annotation was computed. [2021-10-13 06:57:25,628 INFO L857 garLoopResultBuilder]: For program point L329-4(lines 329 349) no Hoare annotation was computed. [2021-10-13 06:57:25,629 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 06:57:25,629 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2021-10-13 06:57:25,629 INFO L853 garLoopResultBuilder]: At program point L429(lines 424 432) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32))) (.cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0)) (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) .cse0 (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32)) .cse3 .cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))))) [2021-10-13 06:57:25,629 INFO L853 garLoopResultBuilder]: At program point L429-1(lines 424 432) the Hoare annotation is: false [2021-10-13 06:57:25,629 INFO L853 garLoopResultBuilder]: At program point L429-2(lines 424 432) the Hoare annotation is: false [2021-10-13 06:57:25,630 INFO L857 garLoopResultBuilder]: For program point L264(lines 263 308) no Hoare annotation was computed. [2021-10-13 06:57:25,630 INFO L853 garLoopResultBuilder]: At program point L397(lines 392 400) the Hoare annotation is: (let ((.cse6 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse7 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse12 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse5 .cse9 .cse6 .cse7 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4 .cse12 .cse5 .cse8) (and .cse1 .cse11 .cse12 .cse5 .cse9 .cse10))) [2021-10-13 06:57:25,630 INFO L853 garLoopResultBuilder]: At program point L397-1(lines 392 400) the Hoare annotation is: false [2021-10-13 06:57:25,630 INFO L853 garLoopResultBuilder]: At program point L397-2(lines 392 400) the Hoare annotation is: false [2021-10-13 06:57:25,630 INFO L857 garLoopResultBuilder]: For program point L265(lines 265 269) no Hoare annotation was computed. [2021-10-13 06:57:25,631 INFO L853 garLoopResultBuilder]: At program point L67(lines 67 73) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse7 (= (_ bv1 32) ~pumpRunning~0)) (.cse8 (= ~waterLevel~0 (_ bv2 32))) (.cse9 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse6 .cse0 .cse7 .cse8 .cse5 .cse9 .cse1 .cse10) (and .cse6 .cse0 .cse7 .cse8 .cse9 .cse1 .cse3 .cse10))) [2021-10-13 06:57:25,631 INFO L853 garLoopResultBuilder]: At program point L67-1(lines 67 73) the Hoare annotation is: false [2021-10-13 06:57:25,631 INFO L853 garLoopResultBuilder]: At program point L67-2(lines 67 73) the Hoare annotation is: false [2021-10-13 06:57:25,631 INFO L857 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2021-10-13 06:57:25,631 INFO L857 garLoopResultBuilder]: For program point L299-2(lines 60 66) no Hoare annotation was computed. [2021-10-13 06:57:25,636 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:57:25,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:57:25 BoogieIcfgContainer [2021-10-13 06:57:25,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:57:25,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:57:25,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:57:25,686 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:57:25,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:56:21" (3/4) ... [2021-10-13 06:57:25,690 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 06:57:25,714 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-13 06:57:25,716 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-13 06:57:25,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 06:57:25,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 06:57:25,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 06:57:25,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:57:25,722 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:57:25,752 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && tmp == 0bv32) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) [2021-10-13 06:57:25,753 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) [2021-10-13 06:57:25,753 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-13 06:57:25,754 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-13 06:57:25,754 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-13 06:57:25,756 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 06:57:25,756 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-13 06:57:25,758 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 06:57:25,758 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == \result) && tmp == 0bv32) [2021-10-13 06:57:25,758 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && tmp == 0bv32) [2021-10-13 06:57:25,759 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 06:57:25,760 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result) && tmp == 0bv32 [2021-10-13 06:57:25,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:57:25,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:57:25,821 INFO L168 Benchmark]: Toolchain (without parser) took 68189.29 ms. Allocated memory was 50.3 MB in the beginning and 226.5 MB in the end (delta: 176.2 MB). Free memory was 25.0 MB in the beginning and 147.1 MB in the end (delta: -122.1 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:57:25,822 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 50.3 MB. Free memory was 29.7 MB in the beginning and 29.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:57:25,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.31 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 24.8 MB in the beginning and 32.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:57:25,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.68 ms. Allocated memory is still 60.8 MB. Free memory was 32.3 MB in the beginning and 41.9 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-13 06:57:25,823 INFO L168 Benchmark]: Boogie Preprocessor took 106.96 ms. Allocated memory is still 60.8 MB. Free memory was 41.9 MB in the beginning and 38.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:57:25,823 INFO L168 Benchmark]: RCFGBuilder took 2988.48 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 38.9 MB in the beginning and 47.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:57:25,824 INFO L168 Benchmark]: TraceAbstraction took 64061.34 ms. Allocated memory was 73.4 MB in the beginning and 226.5 MB in the end (delta: 153.1 MB). Free memory was 47.2 MB in the beginning and 156.5 MB in the end (delta: -109.4 MB). Peak memory consumption was 157.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:57:25,824 INFO L168 Benchmark]: Witness Printer took 134.30 ms. Allocated memory is still 226.5 MB. Free memory was 156.5 MB in the beginning and 147.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:57:25,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 50.3 MB. Free memory was 29.7 MB in the beginning and 29.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 756.31 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 24.8 MB in the beginning and 32.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 133.68 ms. Allocated memory is still 60.8 MB. Free memory was 32.3 MB in the beginning and 41.9 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.96 ms. Allocated memory is still 60.8 MB. Free memory was 41.9 MB in the beginning and 38.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2988.48 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 38.9 MB in the beginning and 47.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 64061.34 ms. Allocated memory was 73.4 MB in the beginning and 226.5 MB in the end (delta: 153.1 MB). Free memory was 47.2 MB in the beginning and 156.5 MB in the end (delta: -109.4 MB). Peak memory consumption was 157.5 MB. Max. memory is 16.1 GB. * Witness Printer took 134.30 ms. Allocated memory is still 226.5 MB. Free memory was 156.5 MB in the beginning and 147.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 961]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 961]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 961]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 63920.3ms, OverallIterations: 18, TraceHistogramMax: 5, EmptinessCheckTime: 51.9ms, AutomataDifference: 18587.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 15478.2ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2058 SDtfs, 4535 SDslu, 5811 SDs, 0 SdLazy, 977 SolverSat, 153 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14296.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2867 GetRequests, 2705 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1861.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1127occurred in iteration=17, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1439.7ms AutomataMinimizationTime, 18 MinimizatonAttempts, 8260 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 152 NumberOfFragments, 1145 HoareAnnotationTreeSize, 45 FomulaSimplifications, 79389859 FormulaSimplificationTreeSizeReduction, 4166.9ms HoareSimplificationTime, 45 FomulaSimplificationsInter, 9376668 FormulaSimplificationTreeSizeReductionInter, 11294.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 633.5ms SsaConstructionTime, 4296.3ms SatisfiabilityAnalysisTime, 10641.6ms InterpolantComputationTime, 1414 NumberOfCodeBlocks, 1414 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2778 ConstructedInterpolants, 0 QuantifiedInterpolants, 5954 SizeOfPredicates, 64 NumberOfNonLiveVariables, 6153 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 50 InterpolantComputations, 31 PerfectInterpolantSequences, 1532/1966 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result) && tmp == 0bv32 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && tmp == 0bv32) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 943]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == \result) && tmp == 0bv32) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 933]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 06:57:25,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2683c6-d570-45b5-8184-45a8adf3e39f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...