./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs --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 2db589365a4b09ad80a080826d2fb7b41492a300 ............................................................................................................................................ 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_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs --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 2db589365a4b09ad80a080826d2fb7b41492a300 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:13:56,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:13:56,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:13:56,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:13:56,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:13:56,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:13:56,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:13:56,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:13:56,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:13:56,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:13:56,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:13:56,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:13:56,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:13:56,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:13:56,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:13:56,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:13:56,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:13:56,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:13:56,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:13:56,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:13:56,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:13:56,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:13:56,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:13:56,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:13:56,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:13:56,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:13:56,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:13:56,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:13:56,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:13:56,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:13:56,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:13:56,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:13:56,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:13:56,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:13:56,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:13:56,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:13:56,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:13:56,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:13:56,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:13:56,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:13:56,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:13:56,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:13:56,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:13:56,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:13:56,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:13:56,754 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:13:56,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:13:56,755 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:13:56,755 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:13:56,755 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:13:56,761 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:13:56,762 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:13:56,763 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:13:56,763 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:13:56,763 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:13:56,764 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:13:56,764 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:13:56,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:13:56,765 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:13:56,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:13:56,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:13:56,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:13:56,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:13:56,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:13:56,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:13:56,766 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:13:56,767 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:13:56,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:13:56,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:13:56,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:13:56,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:13:56,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:13:56,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:56,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:13:56,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:13:56,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:13:56,770 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:13:56,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:13:56,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:13:56,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:13:56,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:13:56,771 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_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2db589365a4b09ad80a080826d2fb7b41492a300 [2021-10-16 02:13:57,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:13:57,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:13:57,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:13:57,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:13:57,109 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:13:57,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-10-16 02:13:57,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/4cb12254a/0d608e510fe845db885b282dd2185b85/FLAG9ad6a279c [2021-10-16 02:13:57,683 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:13:57,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-10-16 02:13:57,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/4cb12254a/0d608e510fe845db885b282dd2185b85/FLAG9ad6a279c [2021-10-16 02:13:58,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/4cb12254a/0d608e510fe845db885b282dd2185b85 [2021-10-16 02:13:58,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:13:58,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:13:58,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:58,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:13:58,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:13:58,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:58" (1/1) ... [2021-10-16 02:13:58,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3feed53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:58, skipping insertion in model container [2021-10-16 02:13:58,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:58" (1/1) ... [2021-10-16 02:13:58,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:13:58,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:13:58,307 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_04085cdd-b3be-4368-a024-2da403c465f8/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-10-16 02:13:58,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:58,330 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) [2021-10-16 02:13:58,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@125065ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:58, skipping insertion in model container [2021-10-16 02:13:58,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:58,331 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:13:58,332 INFO L168 Benchmark]: Toolchain (without parser) took 271.54 ms. Allocated memory is still 115.3 MB. Free memory was 78.9 MB in the beginning and 92.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:58,334 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory was 95.5 MB in the beginning and 95.4 MB in the end (delta: 74.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:58,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.76 ms. Allocated memory is still 115.3 MB. Free memory was 78.7 MB in the beginning and 92.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:58,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory was 95.5 MB in the beginning and 95.4 MB in the end (delta: 74.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.76 ms. Allocated memory is still 115.3 MB. Free memory was 78.7 MB in the beginning and 92.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 109]: 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-5709675 [2021-10-16 02:14:00,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:14:00,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:14:00,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:14:00,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:14:00,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:14:00,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:14:00,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:14:00,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:14:00,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:14:00,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:14:00,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:14:00,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:14:00,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:14:00,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:14:00,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:14:00,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:14:00,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:14:00,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:14:00,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:14:00,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:14:00,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:14:00,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:14:00,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:14:00,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:14:00,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:14:00,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:14:00,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:14:00,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:14:00,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:14:00,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:14:00,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:14:00,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:14:00,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:14:00,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:14:00,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:14:00,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:14:00,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:14:00,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:14:00,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:14:00,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:14:00,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:14:00,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:14:00,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:14:00,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:14:00,705 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:14:00,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:14:00,706 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:14:00,706 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:14:00,706 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:14:00,707 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:14:00,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:14:00,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:14:00,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:14:00,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:14:00,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:14:00,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:14:00,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:14:00,711 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:14:00,711 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:14:00,711 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:14:00,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:14:00,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:14:00,712 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:14:00,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:14:00,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:14:00,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:14:00,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:14:00,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:14:00,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:14:00,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:14:00,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:14:00,714 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:14:00,714 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:14:00,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:14:00,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:14:00,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:14:00,715 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_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2db589365a4b09ad80a080826d2fb7b41492a300 [2021-10-16 02:14:01,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:14:01,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:14:01,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:14:01,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:14:01,158 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:14:01,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-10-16 02:14:01,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/607c8d19a/e703806094864cde8990879b5dab5df8/FLAG51ebfbde8 [2021-10-16 02:14:01,838 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:14:01,839 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-10-16 02:14:01,848 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/607c8d19a/e703806094864cde8990879b5dab5df8/FLAG51ebfbde8 [2021-10-16 02:14:02,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/data/607c8d19a/e703806094864cde8990879b5dab5df8 [2021-10-16 02:14:02,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:14:02,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:14:02,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:14:02,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:14:02,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:14:02,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac35237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02, skipping insertion in model container [2021-10-16 02:14:02,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:14:02,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:14:02,361 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_04085cdd-b3be-4368-a024-2da403c465f8/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-10-16 02:14:02,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:14:02,382 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:14:02,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:14:02,428 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_04085cdd-b3be-4368-a024-2da403c465f8/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-10-16 02:14:02,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:14:02,451 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:14:02,500 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_04085cdd-b3be-4368-a024-2da403c465f8/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-10-16 02:14:02,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:14:02,520 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:14:02,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02 WrapperNode [2021-10-16 02:14:02,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:14:02,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:14:02,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:14:02,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:14:02,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:14:02,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:14:02,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:14:02,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:14:02,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:14:02,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:14:02,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:14:02,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:14:02,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (1/1) ... [2021-10-16 02:14:02,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:14:02,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:14:02,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:14:02,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:14:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:14:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:14:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 02:14:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 02:14:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-16 02:14:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-16 02:14:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:14:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:14:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:14:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:14:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:14:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:14:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:14:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:14:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:14:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:14:02,676 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:14:03,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:14:03,527 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-16 02:14:03,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:14:03 BoogieIcfgContainer [2021-10-16 02:14:03,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:14:03,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:14:03,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:14:03,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:14:03,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:14:02" (1/3) ... [2021-10-16 02:14:03,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f20120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:14:03, skipping insertion in model container [2021-10-16 02:14:03,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:14:02" (2/3) ... [2021-10-16 02:14:03,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f20120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:14:03, skipping insertion in model container [2021-10-16 02:14:03,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:14:03" (3/3) ... [2021-10-16 02:14:03,537 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2021-10-16 02:14:03,551 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:14:03,552 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:14:03,552 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:14:03,552 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:14:03,609 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,610 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,610 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,610 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,610 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,611 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,612 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,614 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,614 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,615 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,615 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,616 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,616 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,616 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,617 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,617 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,617 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,618 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,618 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,620 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,621 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,622 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,623 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,623 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,623 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,624 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,624 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,624 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,625 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,625 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,627 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,628 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,628 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,628 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,628 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,629 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,630 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,630 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,630 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,630 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,631 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,631 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,631 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,631 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,632 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,632 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,633 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,633 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,634 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,637 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,637 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,637 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,638 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,638 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,639 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,649 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,653 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,659 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:14:03,669 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-16 02:14:03,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:14:03,732 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 [2021-10-16 02:14:03,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 02:14:03,748 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:14:03,760 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 142 transitions, 308 flow [2021-10-16 02:14:03,763 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 142 transitions, 308 flow [2021-10-16 02:14:03,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 142 transitions, 308 flow [2021-10-16 02:14:03,830 INFO L129 PetriNetUnfolder]: 13/139 cut-off events. [2021-10-16 02:14:03,830 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-16 02:14:03,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 13/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 96 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2021-10-16 02:14:03,839 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2021-10-16 02:14:20,152 INFO L131 LiptonReduction]: Checked pairs total: 1501 [2021-10-16 02:14:20,153 INFO L133 LiptonReduction]: Total number of compositions: 135 [2021-10-16 02:14:20,160 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 80 flow [2021-10-16 02:14:20,178 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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) [2021-10-16 02:14:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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) [2021-10-16 02:14:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-16 02:14:20,189 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:20,190 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] [2021-10-16 02:14:20,192 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:14:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:20,197 INFO L82 PathProgramCache]: Analyzing trace with hash -118355113, now seen corresponding path program 1 times [2021-10-16 02:14:20,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:20,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622254960] [2021-10-16 02:14:20,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:20,211 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:20,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:20,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:20,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:14:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:20,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:14:20,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:20,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:21,427 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:21,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622254960] [2021-10-16 02:14:21,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622254960] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:14:21,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:14:21,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-16 02:14:21,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362113646] [2021-10-16 02:14:21,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:14:21,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:14:21,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:14:21,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:14:21,451 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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 4 states, 3 states have (on average 13.333333333333334) 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) [2021-10-16 02:14:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:14:21,512 INFO L93 Difference]: Finished difference Result 204 states and 632 transitions. [2021-10-16 02:14:21,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:14:21,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) 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 20 [2021-10-16 02:14:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:14:21,532 INFO L225 Difference]: With dead ends: 204 [2021-10-16 02:14:21,532 INFO L226 Difference]: Without dead ends: 197 [2021-10-16 02:14:21,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:14:21,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-16 02:14:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-10-16 02:14:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 3.13265306122449) internal successors, (614), 196 states have internal predecessors, (614), 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) [2021-10-16 02:14:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 614 transitions. [2021-10-16 02:14:21,618 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 614 transitions. Word has length 20 [2021-10-16 02:14:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:14:21,618 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 614 transitions. [2021-10-16 02:14:21,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) 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) [2021-10-16 02:14:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 614 transitions. [2021-10-16 02:14:21,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-16 02:14:21,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:21,622 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] [2021-10-16 02:14:21,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:14:21,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:14:21,839 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:14:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:21,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1145268432, now seen corresponding path program 1 times [2021-10-16 02:14:21,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:21,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624192609] [2021-10-16 02:14:21,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:21,841 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:21,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:21,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:14:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:22,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:14:22,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:14:22,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:14:22,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:22,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624192609] [2021-10-16 02:14:22,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624192609] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:14:22,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:14:22,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-16 02:14:22,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546780755] [2021-10-16 02:14:22,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 02:14:22,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:14:22,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 02:14:22,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:14:22,236 INFO L87 Difference]: Start difference. First operand 197 states and 614 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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) [2021-10-16 02:14:22,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:14:22,331 INFO L93 Difference]: Finished difference Result 173 states and 548 transitions. [2021-10-16 02:14:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:14:22,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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 21 [2021-10-16 02:14:22,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:14:22,334 INFO L225 Difference]: With dead ends: 173 [2021-10-16 02:14:22,334 INFO L226 Difference]: Without dead ends: 173 [2021-10-16 02:14:22,335 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:14:22,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-16 02:14:22,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 133. [2021-10-16 02:14:22,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 3.121212121212121) internal successors, (412), 132 states have internal predecessors, (412), 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) [2021-10-16 02:14:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 412 transitions. [2021-10-16 02:14:22,346 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 412 transitions. Word has length 21 [2021-10-16 02:14:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:14:22,347 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 412 transitions. [2021-10-16 02:14:22,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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) [2021-10-16 02:14:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 412 transitions. [2021-10-16 02:14:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-16 02:14:22,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:22,349 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] [2021-10-16 02:14:22,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:14:22,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:14:22,561 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:14:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:22,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1454006564, now seen corresponding path program 1 times [2021-10-16 02:14:22,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:22,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132712098] [2021-10-16 02:14:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:22,563 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:22,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:22,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:22,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:14:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:22,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 02:14:22,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:22,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:14:22,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:14:22,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:22,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132712098] [2021-10-16 02:14:22,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132712098] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:14:22,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:14:22,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-10-16 02:14:22,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721046047] [2021-10-16 02:14:22,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:14:22,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:14:22,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:14:22,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:14:22,987 INFO L87 Difference]: Start difference. First operand 133 states and 412 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2021-10-16 02:14:23,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:14:23,031 INFO L93 Difference]: Finished difference Result 134 states and 413 transitions. [2021-10-16 02:14:23,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:14:23,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2021-10-16 02:14:23,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:14:23,036 INFO L225 Difference]: With dead ends: 134 [2021-10-16 02:14:23,036 INFO L226 Difference]: Without dead ends: 134 [2021-10-16 02:14:23,036 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.0ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:14:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-16 02:14:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-10-16 02:14:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 3.1052631578947367) internal successors, (413), 133 states have internal predecessors, (413), 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) [2021-10-16 02:14:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 413 transitions. [2021-10-16 02:14:23,053 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 413 transitions. Word has length 21 [2021-10-16 02:14:23,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:14:23,053 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 413 transitions. [2021-10-16 02:14:23,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2021-10-16 02:14:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 413 transitions. [2021-10-16 02:14:23,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 02:14:23,057 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:23,057 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] [2021-10-16 02:14:23,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:14:23,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:14:23,271 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:14:23,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:23,271 INFO L82 PathProgramCache]: Analyzing trace with hash 2097297406, now seen corresponding path program 1 times [2021-10-16 02:14:23,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:23,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234659422] [2021-10-16 02:14:23,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:23,272 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:23,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:23,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:14:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:23,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 02:14:23,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:14:23,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:14:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:14:23,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:14:23,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234659422] [2021-10-16 02:14:23,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234659422] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:14:23,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:14:23,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-10-16 02:14:23,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016848463] [2021-10-16 02:14:23,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:14:23,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:14:23,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:14:23,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:14:23,923 INFO L87 Difference]: Start difference. First operand 134 states and 413 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) [2021-10-16 02:14:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:14:24,056 INFO L93 Difference]: Finished difference Result 166 states and 519 transitions. [2021-10-16 02:14:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:14:24,057 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 22 [2021-10-16 02:14:24,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:14:24,059 INFO L225 Difference]: With dead ends: 166 [2021-10-16 02:14:24,059 INFO L226 Difference]: Without dead ends: 166 [2021-10-16 02:14:24,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 114.7ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:14:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-16 02:14:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-10-16 02:14:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 3.1454545454545455) internal successors, (519), 165 states have internal predecessors, (519), 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) [2021-10-16 02:14:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 519 transitions. [2021-10-16 02:14:24,077 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 519 transitions. Word has length 22 [2021-10-16 02:14:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:14:24,077 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 519 transitions. [2021-10-16 02:14:24,078 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) [2021-10-16 02:14:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 519 transitions. [2021-10-16 02:14:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 02:14:24,080 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:14:24,080 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] [2021-10-16 02:14:24,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:14:24,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:14:24,295 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-16 02:14:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:14:24,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1179517079, now seen corresponding path program 1 times [2021-10-16 02:14:24,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:14:24,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97803810] [2021-10-16 02:14:24,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:14:24,297 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:14:24,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:14:24,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:14:24,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:14:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:14:24,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-16 02:14:24,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:14:24,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 207 [2021-10-16 02:14:25,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:25,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:25,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:25,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:25,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:25,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:26,111 INFO L354 Elim1Store]: treesize reduction 923, result has 6.4 percent of original size [2021-10-16 02:14:26,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 137 treesize of output 113 [2021-10-16 02:14:31,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:31,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:31,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:31,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:14:31,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:17:09,882 WARN L207 SmtUtils]: Spent 2.64 m on a formula simplification. DAG size of input: 347 DAG size of output: 120 [2021-10-16 02:17:09,884 INFO L354 Elim1Store]: treesize reduction 1685, result has 19.2 percent of original size [2021-10-16 02:17:09,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 179 treesize of output 471 [2021-10-16 02:23:47,040 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-16 02:23:47,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:23:47,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97803810] [2021-10-16 02:23:47,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-16 02:23:47,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [371866737] [2021-10-16 02:23:47,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:47,042 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:23:47,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:23:47,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:23:47,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-16 02:23:47,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-16 02:23:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:47,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-16 02:23:47,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:47,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:23:47,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927212704] [2021-10-16 02:23:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:47,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:23:47,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:23:47,676 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:23:47,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-16 02:23:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:47,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-16 02:23:47,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:47,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:23:47,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:47,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-16 02:23:47,970 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-16 02:23:47,970 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-16 02:23:47,975 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:23:47,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 02:23:47,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 02:23:47,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-16 02:23:47,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:48,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:48,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:48,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04085cdd-b3be-4368-a024-2da403c465f8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:23:48,589 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 02:23:48,589 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:23:48,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:23:48 BasicIcfg [2021-10-16 02:23:48,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:23:48,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:23:48,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:23:48,606 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:23:48,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:14:03" (3/4) ... [2021-10-16 02:23:48,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:23:48,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:23:48,611 INFO L168 Benchmark]: Toolchain (without parser) took 586452.00 ms. Allocated memory was 62.9 MB in the beginning and 130.0 MB in the end (delta: 67.1 MB). Free memory was 43.3 MB in the beginning and 65.4 MB in the end (delta: -22.2 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:48,611 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:23:48,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.99 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 45.1 MB in the end (delta: -1.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:48,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.23 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 43.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:48,613 INFO L168 Benchmark]: Boogie Preprocessor took 36.27 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 41.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:48,614 INFO L168 Benchmark]: RCFGBuilder took 928.72 ms. Allocated memory was 62.9 MB in the beginning and 102.8 MB in the end (delta: 39.8 MB). Free memory was 41.6 MB in the beginning and 75.0 MB in the end (delta: -33.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:48,614 INFO L168 Benchmark]: TraceAbstraction took 585074.66 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 74.5 MB in the beginning and 65.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:48,615 INFO L168 Benchmark]: Witness Printer took 3.88 ms. Allocated memory is still 130.0 MB. Free memory is still 65.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:23:48,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.99 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 45.1 MB in the end (delta: -1.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.23 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 43.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.27 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 41.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 928.72 ms. Allocated memory was 62.9 MB in the beginning and 102.8 MB in the end (delta: 39.8 MB). Free memory was 41.6 MB in the beginning and 75.0 MB in the end (delta: -33.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 585074.66 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 74.5 MB in the beginning and 65.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.88 ms. Allocated memory is still 130.0 MB. Free memory is still 65.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16390.0ms, 139 PlacesBefore, 34 PlacesAfterwards, 142 TransitionsBefore, 28 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 7 FixpointIterations, 74 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 6 ConcurrentYvCompositions, 9 ChoiceCompositions, 135 TotalNumberOfCompositions, 1501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1424, positive: 1392, positive conditional: 0, positive unconditional: 1392, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 897, positive: 887, positive conditional: 0, positive unconditional: 887, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 897, positive: 887, positive conditional: 0, positive unconditional: 887, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 433, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 433, negative conditional: 0, negative unconditional: 433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1424, positive: 505, positive conditional: 0, positive unconditional: 505, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 897, unknown conditional: 0, unknown unconditional: 897] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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 - UnprovableResult [Line: 100]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40] 0 int* A; [L41] 0 int max1, max2, max3, M, N; [L82] 0 pthread_t t1, t2, t3; [L85] 0 M = __VERIFIER_nondet_int() [L86] 0 N = __VERIFIER_nondet_int() [L37] COND FALSE 0 !(!cond) [L37] COND TRUE 0 !cond [L109] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L110] 0 int i = 0; [L110] COND TRUE 0 i < size [L111] 0 arr[i] = __VERIFIER_nondet_int() [L110] 0 i++ [L110] COND FALSE 0 !(i < size) [L113] 0 return arr; [L87] 0 A = create_fresh_int_array(N) [L37] COND TRUE 0 !cond [L92] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L46] 1 int i=0; [L46] COND TRUE 1 i