./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-simple-queue.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_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/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_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/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_e456b8a2-0e28-4776-86e6-8594e73b5855/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 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 ............................................................................................................................................ 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_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/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_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/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_e456b8a2-0e28-4776-86e6-8594e73b5855/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 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:36:29,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:36:29,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:36:29,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:36:29,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:36:29,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:36:29,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:36:29,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:36:29,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:36:29,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:36:29,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:36:29,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:36:29,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:36:29,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:36:29,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:36:29,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:36:29,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:36:29,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:36:29,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:36:29,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:36:29,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:36:29,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:36:29,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:36:29,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:36:29,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:36:29,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:36:29,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:36:29,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:36:29,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:36:29,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:36:29,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:36:29,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:36:29,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:36:29,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:36:29,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:36:29,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:36:29,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:36:29,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:36:29,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:36:29,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:36:29,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:36:29,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:36:29,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:36:29,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:36:29,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:36:29,697 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:36:29,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:36:29,697 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:36:29,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:36:29,698 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:36:29,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:36:29,702 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:36:29,703 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:36:29,703 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:36:29,703 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:36:29,704 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:36:29,704 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:36:29,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:36:29,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:36:29,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:36:29,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:36:29,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:36:29,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:36:29,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:36:29,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:36:29,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:36:29,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:36:29,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:36:29,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:36:29,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:36:29,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:36:29,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:36:29,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:36:29,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:36:29,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:36:29,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:36:29,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:36:29,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:36:29,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:36:29,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:36:29,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:36:29,715 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_e456b8a2-0e28-4776-86e6-8594e73b5855/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 [2021-10-29 04:36:30,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:36:30,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:36:30,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:36:30,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:36:30,039 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:36:30,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2021-10-29 04:36:30,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/ac92f45ab/d17c51f5ff1545789d81a694cba91d28/FLAG7f42e88e5 [2021-10-29 04:36:30,825 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:36:30,830 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2021-10-29 04:36:30,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/ac92f45ab/d17c51f5ff1545789d81a694cba91d28/FLAG7f42e88e5 [2021-10-29 04:36:31,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/ac92f45ab/d17c51f5ff1545789d81a694cba91d28 [2021-10-29 04:36:31,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:36:31,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:36:31,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:36:31,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:36:31,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:36:31,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:36:31" (1/1) ... [2021-10-29 04:36:31,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7064f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:31, skipping insertion in model container [2021-10-29 04:36:31,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:36:31" (1/1) ... [2021-10-29 04:36:31,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:36:31,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:36:31,489 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_e456b8a2-0e28-4776-86e6-8594e73b5855/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c[2438,2451] [2021-10-29 04:36:31,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:36:31,517 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 04:36:31,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18ad9ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:31, skipping insertion in model container [2021-10-29 04:36:31,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:36:31,519 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:36:31,522 INFO L168 Benchmark]: Toolchain (without parser) took 363.00 ms. Allocated memory is still 98.6 MB. Free memory was 66.6 MB in the beginning and 76.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:31,523 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:36:31,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.11 ms. Allocated memory is still 98.6 MB. Free memory was 66.4 MB in the beginning and 76.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:31,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.11 ms. Allocated memory is still 98.6 MB. Free memory was 66.4 MB in the beginning and 76.6 MB in the end (delta: -10.2 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: 95]: 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 04:36:34,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:36:34,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:36:34,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:36:34,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:36:34,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:36:34,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:36:34,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:36:34,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:36:34,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:36:34,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:36:34,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:36:34,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:36:34,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:36:34,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:36:34,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:36:34,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:36:34,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:36:34,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:36:34,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:36:34,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:36:34,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:36:34,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:36:34,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:36:34,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:36:34,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:36:34,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:36:34,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:36:34,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:36:34,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:36:34,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:36:34,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:36:34,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:36:34,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:36:34,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:36:34,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:36:34,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:36:34,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:36:34,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:36:34,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:36:34,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:36:34,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:36:34,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:36:34,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:36:34,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:36:34,530 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:36:34,531 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:36:34,531 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:36:34,531 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:36:34,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:36:34,532 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:36:34,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:36:34,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:36:34,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:36:34,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:36:34,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:36:34,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:36:34,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:36:34,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:36:34,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:36:34,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:36:34,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:36:34,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:36:34,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:36:34,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:36:34,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:36:34,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:36:34,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:36:34,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:36:34,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:36:34,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:36:34,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:36:34,540 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:36:34,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:36:34,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:36:34,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:36:34,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:36:34,541 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_e456b8a2-0e28-4776-86e6-8594e73b5855/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 [2021-10-29 04:36:35,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:36:35,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:36:35,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:36:35,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:36:35,051 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:36:35,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2021-10-29 04:36:35,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/0de462887/0c3f2d8bbf844672b0385f8441afa5b8/FLAG6e08b798c [2021-10-29 04:36:35,859 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:36:35,860 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2021-10-29 04:36:35,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/0de462887/0c3f2d8bbf844672b0385f8441afa5b8/FLAG6e08b798c [2021-10-29 04:36:36,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/data/0de462887/0c3f2d8bbf844672b0385f8441afa5b8 [2021-10-29 04:36:36,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:36:36,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:36:36,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:36:36,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:36:36,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:36:36,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d3f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36, skipping insertion in model container [2021-10-29 04:36:36,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:36:36,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:36:36,507 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_e456b8a2-0e28-4776-86e6-8594e73b5855/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c[2438,2451] [2021-10-29 04:36:36,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:36:36,551 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:36:36,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:36:36,604 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_e456b8a2-0e28-4776-86e6-8594e73b5855/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c[2438,2451] [2021-10-29 04:36:36,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:36:36,648 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:36:36,730 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_e456b8a2-0e28-4776-86e6-8594e73b5855/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c[2438,2451] [2021-10-29 04:36:36,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:36:36,765 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:36:36,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36 WrapperNode [2021-10-29 04:36:36,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:36:36,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:36:36,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:36:36,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:36:36,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:36:36,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:36:36,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:36:36,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:36:36,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:36:36,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:36:36,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:36:36,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:36:36,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (1/1) ... [2021-10-29 04:36:36,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:36:36,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:36:36,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:36:36,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:36:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-29 04:36:37,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-29 04:36:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-29 04:36:37,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-29 04:36:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:36:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:36:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 04:36:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 04:36:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:36:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:36:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:36:37,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:36:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:36:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:36:37,041 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 04:36:37,850 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:36:37,851 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-10-29 04:36:37,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:36:37 BoogieIcfgContainer [2021-10-29 04:36:37,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:36:37,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:36:37,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:36:37,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:36:37,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:36:36" (1/3) ... [2021-10-29 04:36:37,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2081bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:36:37, skipping insertion in model container [2021-10-29 04:36:37,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:36" (2/3) ... [2021-10-29 04:36:37,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2081bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:36:37, skipping insertion in model container [2021-10-29 04:36:37,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:36:37" (3/3) ... [2021-10-29 04:36:37,872 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c [2021-10-29 04:36:37,879 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 04:36:37,879 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:36:37,880 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:36:37,880 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 04:36:37,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,936 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,936 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,936 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,937 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,937 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,937 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,937 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,938 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,938 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,938 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,939 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,939 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,939 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,939 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,940 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,940 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,941 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,941 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,941 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,942 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,942 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,942 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,942 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,943 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,943 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,943 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,943 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,944 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,944 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,944 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,945 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,945 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,945 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,945 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,949 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,950 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,950 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,951 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,954 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,955 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,955 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,955 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,956 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,956 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,956 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:36:37,963 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-29 04:36:38,020 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:36:38,028 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 04:36:38,028 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:36:38,046 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 04:36:38,059 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 105 transitions, 226 flow [2021-10-29 04:36:38,063 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 105 transitions, 226 flow [2021-10-29 04:36:38,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 226 flow [2021-10-29 04:36:38,140 INFO L129 PetriNetUnfolder]: 9/103 cut-off events. [2021-10-29 04:36:38,140 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-29 04:36:38,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 103 events. 9/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2021-10-29 04:36:38,154 INFO L116 LiptonReduction]: Number of co-enabled transitions 368 [2021-10-29 04:36:49,876 INFO L131 LiptonReduction]: Checked pairs total: 461 [2021-10-29 04:36:49,877 INFO L133 LiptonReduction]: Total number of compositions: 105 [2021-10-29 04:36:49,888 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 18 transitions, 52 flow [2021-10-29 04:36:49,901 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 21 states, 20 states have (on average 2.1) internal successors, (42), 20 states have internal predecessors, (42), 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 04:36:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 20 states have (on average 2.1) internal successors, (42), 20 states have internal predecessors, (42), 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 04:36:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:36:49,911 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:36:49,912 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:36:49,913 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-29 04:36:49,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:36:49,920 INFO L85 PathProgramCache]: Analyzing trace with hash -497065030, now seen corresponding path program 1 times [2021-10-29 04:36:49,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:36:49,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425145348] [2021-10-29 04:36:49,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:36:49,937 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:36:49,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:36:49,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:36:49,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:36:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:36:50,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:36:50,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:36:50,222 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 04:36:50,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:36:50,369 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 04:36:50,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:36:50,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425145348] [2021-10-29 04:36:50,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425145348] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:36:50,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:36:50,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-29 04:36:50,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170947352] [2021-10-29 04:36:50,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:36:50,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:36:50,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:36:50,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:36:50,412 INFO L87 Difference]: Start difference. First operand has 21 states, 20 states have (on average 2.1) internal successors, (42), 20 states have internal predecessors, (42), 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 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 04:36:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:36:50,445 INFO L93 Difference]: Finished difference Result 34 states and 71 transitions. [2021-10-29 04:36:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:36:50,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2021-10-29 04:36:50,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:36:50,465 INFO L225 Difference]: With dead ends: 34 [2021-10-29 04:36:50,466 INFO L226 Difference]: Without dead ends: 27 [2021-10-29 04:36:50,467 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:36:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-29 04:36:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-29 04:36:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 2.1538461538461537) internal successors, (56), 26 states have internal predecessors, (56), 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 04:36:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 56 transitions. [2021-10-29 04:36:50,515 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 56 transitions. Word has length 12 [2021-10-29 04:36:50,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:36:50,516 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 56 transitions. [2021-10-29 04:36:50,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 04:36:50,516 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 56 transitions. [2021-10-29 04:36:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:36:50,517 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:36:50,518 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:36:50,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:36:50,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:36:50,738 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-29 04:36:50,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:36:50,739 INFO L85 PathProgramCache]: Analyzing trace with hash 991081703, now seen corresponding path program 1 times [2021-10-29 04:36:50,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:36:50,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153886145] [2021-10-29 04:36:50,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:36:50,741 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:36:50,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:36:50,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:36:50,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:36:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:36:50,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:36:50,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:36:50,937 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 04:36:50,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:36:51,123 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 04:36:51,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:36:51,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153886145] [2021-10-29 04:36:51,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153886145] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:36:51,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:36:51,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:36:51,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322461738] [2021-10-29 04:36:51,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:36:51,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:36:51,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:36:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:36:51,128 INFO L87 Difference]: Start difference. First operand 27 states and 56 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:36:51,159 INFO L93 Difference]: Finished difference Result 37 states and 72 transitions. [2021-10-29 04:36:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:36:51,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 04:36:51,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:36:51,162 INFO L225 Difference]: With dead ends: 37 [2021-10-29 04:36:51,162 INFO L226 Difference]: Without dead ends: 31 [2021-10-29 04:36:51,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 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 04:36:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-29 04:36:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-29 04:36:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 2.1) internal successors, (63), 30 states have internal predecessors, (63), 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 04:36:51,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 63 transitions. [2021-10-29 04:36:51,171 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 63 transitions. Word has length 13 [2021-10-29 04:36:51,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:36:51,171 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 63 transitions. [2021-10-29 04:36:51,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:51,172 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 63 transitions. [2021-10-29 04:36:51,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:36:51,173 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:36:51,173 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:36:51,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:36:51,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:36:51,392 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-29 04:36:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:36:51,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1816795860, now seen corresponding path program 1 times [2021-10-29 04:36:51,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:36:51,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422792975] [2021-10-29 04:36:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:36:51,394 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:36:51,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:36:51,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:36:51,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:36:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:36:51,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:36:51,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:36:51,668 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 04:36:51,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:36:51,719 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 04:36:51,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:36:51,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422792975] [2021-10-29 04:36:51,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422792975] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:36:51,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:36:51,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:36:51,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001152849] [2021-10-29 04:36:51,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:36:51,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:36:51,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:36:51,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:36:51,724 INFO L87 Difference]: Start difference. First operand 31 states and 63 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:36:51,725 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-29 04:36:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:36:51,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 04:36:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:36:51,731 INFO L225 Difference]: With dead ends: 7 [2021-10-29 04:36:51,731 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:36:51,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 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 04:36:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:36:51,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:36:51,733 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 04:36:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:36:51,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-29 04:36:51,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:36:51,734 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:36:51,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:36:51,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:36:51,737 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:36:51,738 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 04:36:51,739 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 04:36:51,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:36:51,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:36:51,949 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 04:36:51,959 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 04:36:51,959 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:36:51,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:36:51 BasicIcfg [2021-10-29 04:36:51,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:36:51,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:36:51,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:36:51,962 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:36:51,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:36:37" (3/4) ... [2021-10-29 04:36:51,966 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:36:51,971 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-29 04:36:51,972 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-29 04:36:51,977 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-29 04:36:51,977 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 04:36:51,977 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:36:51,978 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:36:52,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:36:52,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:36:52,042 INFO L168 Benchmark]: Toolchain (without parser) took 15826.33 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 46.2 MB in the beginning and 66.5 MB in the end (delta: -20.4 MB). Peak memory consumption was 853.6 kB. Max. memory is 16.1 GB. [2021-10-29 04:36:52,042 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory is still 32.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:36:52,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.76 ms. Allocated memory is still 69.2 MB. Free memory was 45.9 MB in the beginning and 50.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:52,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.04 ms. Allocated memory is still 69.2 MB. Free memory was 50.3 MB in the beginning and 48.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:52,044 INFO L168 Benchmark]: Boogie Preprocessor took 78.86 ms. Allocated memory is still 69.2 MB. Free memory was 48.3 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:52,044 INFO L168 Benchmark]: RCFGBuilder took 924.34 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 49.2 MB in the end (delta: -2.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:52,045 INFO L168 Benchmark]: TraceAbstraction took 14101.44 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 48.7 MB in the beginning and 69.3 MB in the end (delta: -20.7 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:52,046 INFO L168 Benchmark]: Witness Printer took 77.60 ms. Allocated memory is still 90.2 MB. Free memory was 69.3 MB in the beginning and 66.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:52,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory is still 32.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 549.76 ms. Allocated memory is still 69.2 MB. Free memory was 45.9 MB in the beginning and 50.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.04 ms. Allocated memory is still 69.2 MB. Free memory was 50.3 MB in the beginning and 48.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.86 ms. Allocated memory is still 69.2 MB. Free memory was 48.3 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 924.34 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 49.2 MB in the end (delta: -2.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14101.44 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 48.7 MB in the beginning and 69.3 MB in the end (delta: -20.7 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. * Witness Printer took 77.60 ms. Allocated memory is still 90.2 MB. Free memory was 69.3 MB in the beginning and 66.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8s, 103 PlacesBefore, 22 PlacesAfterwards, 105 TransitionsBefore, 18 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 7 FixpointIterations, 65 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 105 TotalNumberOfCompositions, 461 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 461, positive: 447, positive conditional: 0, positive unconditional: 447, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 300, positive: 297, positive conditional: 0, positive unconditional: 297, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 300, positive: 297, positive conditional: 0, positive unconditional: 297, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 461, positive: 150, positive conditional: 0, positive unconditional: 150, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 300, unknown conditional: 0, unknown unconditional: 300] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - 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: 86]: 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 5 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 9 SDslu, 25 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=2, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 11 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 04:36:52,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e456b8a2-0e28-4776-86e6-8594e73b5855/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...