./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG --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 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 ............................................................................................................................................ 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_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG --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 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:22:53,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:22:53,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:22:53,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:22:53,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:22:53,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:22:53,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:22:53,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:22:53,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:22:53,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:22:53,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:22:53,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:22:53,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:22:53,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:22:53,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:22:53,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:22:53,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:22:53,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:22:53,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:22:53,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:22:53,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:22:53,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:22:53,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:22:53,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:22:53,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:22:53,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:22:53,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:22:53,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:22:53,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:22:53,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:22:53,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:22:53,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:22:53,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:22:53,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:22:53,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:22:53,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:22:53,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:22:53,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:22:53,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:22:53,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:22:53,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:22:53,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:22:53,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:22:53,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:22:53,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:22:53,746 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:22:53,746 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:22:53,746 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:22:53,747 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:22:53,747 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:22:53,747 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:22:53,747 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:22:53,748 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:22:53,748 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:22:53,748 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:22:53,748 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:22:53,749 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:22:53,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:22:53,750 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:22:53,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:22:53,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:22:53,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:22:53,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:22:53,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:22:53,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:22:53,752 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:22:53,752 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:22:53,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:22:53,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:22:53,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:22:53,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:22:53,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:22:53,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:53,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:22:53,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:22:53,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:22:53,754 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:22:53,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:22:53,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:22:53,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:22:53,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:22:53,755 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_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2021-10-29 05:22:54,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:22:54,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:22:54,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:22:54,174 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:22:54,175 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:22:54,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-10-29 05:22:54,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/327e2bd19/a2974647a7184caeabcc18f2611bc3ac/FLAGa584548d9 [2021-10-29 05:22:55,057 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:22:55,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-10-29 05:22:55,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/327e2bd19/a2974647a7184caeabcc18f2611bc3ac/FLAGa584548d9 [2021-10-29 05:22:55,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/327e2bd19/a2974647a7184caeabcc18f2611bc3ac [2021-10-29 05:22:55,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:22:55,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:22:55,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:55,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:22:55,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:22:55,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72cf4386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55, skipping insertion in model container [2021-10-29 05:22:55,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:55" (1/1) ... [2021-10-29 05:22:55,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:22:55,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:55,773 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_af3b307d-8753-42d0-8454-23c9ccf7c5f4/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-10-29 05:22:55,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:55,819 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) [2021-10-29 05:22:55,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4dc042d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:55, skipping insertion in model container [2021-10-29 05:22:55,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:55,821 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:22:55,825 INFO L168 Benchmark]: Toolchain (without parser) took 453.99 ms. Allocated memory is still 111.1 MB. Free memory was 75.2 MB in the beginning and 87.1 MB in the end (delta: -11.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:55,827 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:55,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.46 ms. Allocated memory is still 111.1 MB. Free memory was 75.1 MB in the beginning and 87.1 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:55,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 432.46 ms. Allocated memory is still 111.1 MB. Free memory was 75.1 MB in the beginning and 87.1 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 126]: 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-b2eff8b [2021-10-29 05:22:58,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:22:58,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:22:58,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:22:58,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:22:58,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:22:58,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:22:58,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:22:58,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:22:58,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:22:58,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:22:58,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:22:58,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:22:58,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:22:58,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:22:58,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:22:58,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:22:58,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:22:58,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:22:58,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:22:58,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:22:58,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:22:58,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:22:58,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:22:58,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:22:58,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:22:58,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:22:58,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:22:58,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:22:58,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:22:58,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:22:58,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:22:58,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:22:58,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:22:58,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:22:58,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:22:58,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:22:58,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:22:58,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:22:58,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:22:58,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:22:58,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:22:58,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:22:58,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:22:58,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:22:58,724 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:22:58,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:22:58,725 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:22:58,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:22:58,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:22:58,725 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:22:58,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:22:58,727 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:22:58,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:22:58,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:22:58,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:22:58,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:22:58,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:22:58,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:22:58,728 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:22:58,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:22:58,729 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:22:58,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:22:58,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:22:58,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:22:58,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:22:58,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:22:58,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:22:58,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:58,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:22:58,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:22:58,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:22:58,732 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:22:58,732 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:22:58,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:22:58,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:22:58,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:22:58,733 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_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2021-10-29 05:22:59,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:22:59,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:22:59,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:22:59,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:22:59,157 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:22:59,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-10-29 05:22:59,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/f9875038d/e7163f9e70984407b2bc000b1cc8b83e/FLAGca61f6195 [2021-10-29 05:22:59,870 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:22:59,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2021-10-29 05:22:59,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/f9875038d/e7163f9e70984407b2bc000b1cc8b83e/FLAGca61f6195 [2021-10-29 05:23:00,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/data/f9875038d/e7163f9e70984407b2bc000b1cc8b83e [2021-10-29 05:23:00,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:23:00,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:23:00,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:23:00,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:23:00,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:23:00,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b3f942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00, skipping insertion in model container [2021-10-29 05:23:00,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:23:00,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:23:00,482 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_af3b307d-8753-42d0-8454-23c9ccf7c5f4/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-10-29 05:23:00,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:23:00,507 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:23:00,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:23:00,563 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_af3b307d-8753-42d0-8454-23c9ccf7c5f4/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-10-29 05:23:00,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:23:00,590 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:23:00,663 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_af3b307d-8753-42d0-8454-23c9ccf7c5f4/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c[3107,3120] [2021-10-29 05:23:00,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:23:00,709 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:23:00,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00 WrapperNode [2021-10-29 05:23:00,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:23:00,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:23:00,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:23:00,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:23:00,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:23:00,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:23:00,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:23:00,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:23:00,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:23:00,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:23:00,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:23:00,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:23:00,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (1/1) ... [2021-10-29 05:23:00,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:23:00,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:23:00,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:23:00,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:23:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:23:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:23:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:23:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-29 05:23:01,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-29 05:23:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-29 05:23:01,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-29 05:23:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-29 05:23:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-29 05:23:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 05:23:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 05:23:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:23:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:23:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:23:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:23:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:23:01,015 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:23:02,050 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:23:02,050 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-10-29 05:23:02,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:23:02 BoogieIcfgContainer [2021-10-29 05:23:02,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:23:02,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:23:02,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:23:02,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:23:02,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:23:00" (1/3) ... [2021-10-29 05:23:02,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:23:02, skipping insertion in model container [2021-10-29 05:23:02,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:23:00" (2/3) ... [2021-10-29 05:23:02,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:23:02, skipping insertion in model container [2021-10-29 05:23:02,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:23:02" (3/3) ... [2021-10-29 05:23:02,069 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2021-10-29 05:23:02,079 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:23:02,079 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:23:02,080 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:23:02,080 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:23:02,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,157 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,159 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,160 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,164 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,165 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,166 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,166 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,167 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,167 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,168 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,168 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,168 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,169 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,169 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,171 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,171 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,171 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,172 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,172 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,172 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,172 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,173 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,173 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,174 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,174 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,174 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,175 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,175 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,175 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,176 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,176 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,176 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,177 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,177 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,178 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,178 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,178 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,180 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,180 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,180 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,180 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,181 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,181 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,181 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,182 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,182 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,184 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,184 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,185 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,186 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,186 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,187 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,192 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,194 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,199 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,200 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,205 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,206 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~b~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,206 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,211 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,219 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,220 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:23:02,233 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-29 05:23:02,316 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:23:02,328 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, mAutomataTypeConcurrency=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 [2021-10-29 05:23:02,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-29 05:23:02,357 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:23:02,386 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 278 flow [2021-10-29 05:23:02,391 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 278 flow [2021-10-29 05:23:02,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 278 flow [2021-10-29 05:23:02,508 INFO L129 PetriNetUnfolder]: 10/124 cut-off events. [2021-10-29 05:23:02,509 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-29 05:23:02,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 124 events. 10/124 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2021-10-29 05:23:02,522 INFO L116 LiptonReduction]: Number of co-enabled transitions 1216 [2021-10-29 05:23:19,643 INFO L131 LiptonReduction]: Checked pairs total: 2073 [2021-10-29 05:23:19,643 INFO L133 LiptonReduction]: Total number of compositions: 115 [2021-10-29 05:23:19,651 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 30 transitions, 84 flow [2021-10-29 05:23:19,675 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 157 states, 156 states have (on average 2.9871794871794872) internal successors, (466), 156 states have internal predecessors, (466), 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) [2021-10-29 05:23:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 156 states have (on average 2.9871794871794872) internal successors, (466), 156 states have internal predecessors, (466), 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) [2021-10-29 05:23:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:23:19,689 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:19,690 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:23:19,691 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-29 05:23:19,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:19,696 INFO L85 PathProgramCache]: Analyzing trace with hash 818070578, now seen corresponding path program 1 times [2021-10-29 05:23:19,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:19,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503247417] [2021-10-29 05:23:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:23:19,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:19,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:19,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:19,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:23:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:23:19,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:23:19,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:19,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:20,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:20,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503247417] [2021-10-29 05:23:20,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503247417] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:20,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:20,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 05:23:20,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868356818] [2021-10-29 05:23:20,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:23:20,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:20,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:23:20,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:23:20,164 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 2.9871794871794872) internal successors, (466), 156 states have internal predecessors, (466), 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 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-10-29 05:23:20,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:20,342 INFO L93 Difference]: Finished difference Result 143 states and 411 transitions. [2021-10-29 05:23:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:23:20,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 05:23:20,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:20,364 INFO L225 Difference]: With dead ends: 143 [2021-10-29 05:23:20,365 INFO L226 Difference]: Without dead ends: 143 [2021-10-29 05:23:20,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:23:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-29 05:23:20,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 133. [2021-10-29 05:23:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.909090909090909) internal successors, (384), 132 states have internal predecessors, (384), 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) [2021-10-29 05:23:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 384 transitions. [2021-10-29 05:23:20,457 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 384 transitions. Word has length 19 [2021-10-29 05:23:20,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:20,458 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 384 transitions. [2021-10-29 05:23:20,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-10-29 05:23:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 384 transitions. [2021-10-29 05:23:20,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:23:20,465 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:20,465 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:23:20,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:20,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:20,680 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-29 05:23:20,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash -774297270, now seen corresponding path program 2 times [2021-10-29 05:23:20,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:20,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960085204] [2021-10-29 05:23:20,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:23:20,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:20,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:20,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:20,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:23:20,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-29 05:23:20,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:23:20,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:23:20,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:20,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:21,068 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:21,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960085204] [2021-10-29 05:23:21,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960085204] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:21,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:21,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 05:23:21,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414617359] [2021-10-29 05:23:21,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:23:21,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:21,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:23:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:23:21,073 INFO L87 Difference]: Start difference. First operand 133 states and 384 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-10-29 05:23:21,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:21,235 INFO L93 Difference]: Finished difference Result 157 states and 444 transitions. [2021-10-29 05:23:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:23:21,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 05:23:21,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:21,243 INFO L225 Difference]: With dead ends: 157 [2021-10-29 05:23:21,243 INFO L226 Difference]: Without dead ends: 157 [2021-10-29 05:23:21,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:23:21,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-29 05:23:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 133. [2021-10-29 05:23:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.9242424242424243) internal successors, (386), 132 states have internal predecessors, (386), 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) [2021-10-29 05:23:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 386 transitions. [2021-10-29 05:23:21,268 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 386 transitions. Word has length 19 [2021-10-29 05:23:21,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:21,270 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 386 transitions. [2021-10-29 05:23:21,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-10-29 05:23:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 386 transitions. [2021-10-29 05:23:21,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:23:21,282 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:21,282 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:23:21,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:21,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:21,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-29 05:23:21,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:21,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1295761672, now seen corresponding path program 3 times [2021-10-29 05:23:21,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:21,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025205637] [2021-10-29 05:23:21,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 05:23:21,485 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:21,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:21,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:21,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:23:21,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-29 05:23:21,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:23:21,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:23:21,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:21,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:21,899 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:21,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025205637] [2021-10-29 05:23:21,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025205637] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:21,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:21,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 05:23:21,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783504228] [2021-10-29 05:23:21,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:23:21,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:21,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:23:21,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:23:21,906 INFO L87 Difference]: Start difference. First operand 133 states and 386 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-10-29 05:23:22,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:22,056 INFO L93 Difference]: Finished difference Result 211 states and 616 transitions. [2021-10-29 05:23:22,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:23:22,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 05:23:22,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:22,060 INFO L225 Difference]: With dead ends: 211 [2021-10-29 05:23:22,060 INFO L226 Difference]: Without dead ends: 151 [2021-10-29 05:23:22,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:23:22,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-29 05:23:22,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2021-10-29 05:23:22,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 2.869565217391304) internal successors, (396), 138 states have internal predecessors, (396), 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) [2021-10-29 05:23:22,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 396 transitions. [2021-10-29 05:23:22,085 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 396 transitions. Word has length 19 [2021-10-29 05:23:22,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:22,085 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 396 transitions. [2021-10-29 05:23:22,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-10-29 05:23:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 396 transitions. [2021-10-29 05:23:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:23:22,087 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:22,087 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:23:22,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:22,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:22,301 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-29 05:23:22,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1265731025, now seen corresponding path program 1 times [2021-10-29 05:23:22,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:22,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419954159] [2021-10-29 05:23:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:23:22,302 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:22,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:22,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:22,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:23:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:23:22,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:23:22,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:22,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:22,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:23:22,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:22,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419954159] [2021-10-29 05:23:22,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419954159] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:22,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:22,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:23:22,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090712156] [2021-10-29 05:23:22,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:23:22,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:22,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:23:22,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:23:22,734 INFO L87 Difference]: Start difference. First operand 139 states and 396 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-10-29 05:23:22,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:22,762 INFO L93 Difference]: Finished difference Result 125 states and 358 transitions. [2021-10-29 05:23:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:23:22,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 [2021-10-29 05:23:22,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:22,768 INFO L225 Difference]: With dead ends: 125 [2021-10-29 05:23:22,768 INFO L226 Difference]: Without dead ends: 125 [2021-10-29 05:23:22,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:23:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-29 05:23:22,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-29 05:23:22,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 2.8870967741935485) internal successors, (358), 124 states have internal predecessors, (358), 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) [2021-10-29 05:23:22,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 358 transitions. [2021-10-29 05:23:22,780 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 358 transitions. Word has length 21 [2021-10-29 05:23:22,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:22,780 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 358 transitions. [2021-10-29 05:23:22,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-10-29 05:23:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 358 transitions. [2021-10-29 05:23:22,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:23:22,782 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:23:22,783 INFO L513 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] [2021-10-29 05:23:22,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:22,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:22,995 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-29 05:23:22,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:23:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash 148235336, now seen corresponding path program 1 times [2021-10-29 05:23:22,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:23:22,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163332347] [2021-10-29 05:23:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:23:22,997 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:23:22,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:23:22,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:23:23,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:23:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:23:23,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:23:23,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:23:23,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:23,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:23:23,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:23:23,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163332347] [2021-10-29 05:23:23,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163332347] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:23:23,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:23:23,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:23:23,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065928275] [2021-10-29 05:23:23,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:23:23,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:23:23,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:23:23,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:23:23,374 INFO L87 Difference]: Start difference. First operand 125 states and 358 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:23:23,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:23:23,381 INFO L93 Difference]: Finished difference Result 23 states and 38 transitions. [2021-10-29 05:23:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:23:23,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-29 05:23:23,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:23:23,384 INFO L225 Difference]: With dead ends: 23 [2021-10-29 05:23:23,384 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:23:23,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:23:23,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:23:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:23:23,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:23:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:23:23,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-10-29 05:23:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:23:23,386 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:23:23,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:23:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:23:23,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:23:23,389 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:23:23,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:23:23,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 05:23:23,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 05:23:23,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:23:23,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:23:23,605 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-10-29 05:23:23,607 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:23:23,608 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:23:23,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:23:23 BasicIcfg [2021-10-29 05:23:23,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:23:23,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:23:23,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:23:23,611 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:23:23,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:23:02" (3/4) ... [2021-10-29 05:23:23,615 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:23:23,621 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-29 05:23:23,621 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-29 05:23:23,622 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-29 05:23:23,629 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-10-29 05:23:23,629 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:23:23,630 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:23:23,630 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:23:23,680 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:23:23,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:23:23,682 INFO L168 Benchmark]: Toolchain (without parser) took 23472.41 ms. Allocated memory was 52.4 MB in the beginning and 88.1 MB in the end (delta: 35.7 MB). Free memory was 29.3 MB in the beginning and 33.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:23,687 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:23:23,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.99 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.2 MB in the beginning and 50.9 MB in the end (delta: -21.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:23,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.72 ms. Allocated memory is still 69.2 MB. Free memory was 50.9 MB in the beginning and 49.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:23,689 INFO L168 Benchmark]: Boogie Preprocessor took 91.69 ms. Allocated memory is still 69.2 MB. Free memory was 48.7 MB in the beginning and 47.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:23,690 INFO L168 Benchmark]: RCFGBuilder took 1154.29 ms. Allocated memory is still 69.2 MB. Free memory was 47.1 MB in the beginning and 41.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:23,691 INFO L168 Benchmark]: TraceAbstraction took 21553.99 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 41.0 MB in the beginning and 37.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:23,691 INFO L168 Benchmark]: Witness Printer took 69.91 ms. Allocated memory is still 88.1 MB. Free memory was 37.4 MB in the beginning and 33.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:23:23,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.99 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.2 MB in the beginning and 50.9 MB in the end (delta: -21.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.72 ms. Allocated memory is still 69.2 MB. Free memory was 50.9 MB in the beginning and 49.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.69 ms. Allocated memory is still 69.2 MB. Free memory was 48.7 MB in the beginning and 47.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1154.29 ms. Allocated memory is still 69.2 MB. Free memory was 47.1 MB in the beginning and 41.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21553.99 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 41.0 MB in the beginning and 37.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * Witness Printer took 69.91 ms. Allocated memory is still 88.1 MB. Free memory was 37.4 MB in the beginning and 33.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.2s, 127 PlacesBefore, 36 PlacesAfterwards, 127 TransitionsBefore, 30 TransitionsAfterwards, 1216 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 6 ConcurrentYvCompositions, 6 ChoiceCompositions, 115 TotalNumberOfCompositions, 2073 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1620, positive: 1545, positive conditional: 0, positive unconditional: 1545, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 843, positive: 821, positive conditional: 0, positive unconditional: 821, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 843, positive: 819, positive conditional: 0, positive unconditional: 819, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 924, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 864, negative conditional: 0, negative unconditional: 864, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1620, positive: 724, positive conditional: 0, positive unconditional: 724, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 843, unknown conditional: 0, unknown unconditional: 843] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 148 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 21.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 118 SDtfs, 150 SDslu, 239 SDs, 0 SdLazy, 142 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 46 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 SizeOfPredicates, 15 NumberOfNonLiveVariables, 458 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:23:23,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3b307d-8753-42d0-8454-23c9ccf7c5f4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...