./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.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_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/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_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/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_7238502b-3c18-4151-a858-d799476c3d1a/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 df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a ............................................................................................................................................ 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_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/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_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/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_7238502b-3c18-4151-a858-d799476c3d1a/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 df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:45:21,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:45:21,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:45:21,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:45:21,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:45:21,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:45:21,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:45:21,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:45:21,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:45:21,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:45:21,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:45:21,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:45:21,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:45:21,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:45:21,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:45:21,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:45:21,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:45:21,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:45:21,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:45:21,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:45:21,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:45:21,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:45:21,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:45:21,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:45:21,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:45:21,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:45:21,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:45:21,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:45:21,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:45:21,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:45:21,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:45:21,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:45:21,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:45:21,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:45:21,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:45:21,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:45:21,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:45:21,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:45:21,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:45:21,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:45:21,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:45:21,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:45:21,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:45:21,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:45:21,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:45:21,521 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:45:21,521 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:45:21,521 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:45:21,521 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:45:21,521 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:45:21,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:45:21,522 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:45:21,522 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:45:21,522 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:45:21,523 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:45:21,523 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:45:21,523 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:45:21,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:45:21,524 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:45:21,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:45:21,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:45:21,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:45:21,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:45:21,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:45:21,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:45:21,526 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:45:21,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:45:21,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:45:21,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:45:21,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:45:21,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:45:21,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:45:21,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:45:21,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:45:21,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:45:21,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:45:21,528 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:45:21,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:45:21,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:45:21,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:45:21,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:45:21,529 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_7238502b-3c18-4151-a858-d799476c3d1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a [2021-10-29 04:45:21,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:45:21,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:45:21,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:45:21,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:45:21,857 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:45:21,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2021-10-29 04:45:21,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/773399fe2/1ea5316c43f54cfb9e0da9e52f5b67d5/FLAG04fe01951 [2021-10-29 04:45:22,429 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:45:22,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2021-10-29 04:45:22,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/773399fe2/1ea5316c43f54cfb9e0da9e52f5b67d5/FLAG04fe01951 [2021-10-29 04:45:22,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/773399fe2/1ea5316c43f54cfb9e0da9e52f5b67d5 [2021-10-29 04:45:22,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:45:22,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:45:22,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:45:22,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:45:22,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:45:22,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:22" (1/1) ... [2021-10-29 04:45:22,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773737f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:22, skipping insertion in model container [2021-10-29 04:45:22,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:22" (1/1) ... [2021-10-29 04:45:22,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:45:22,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:45:23,054 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_7238502b-3c18-4151-a858-d799476c3d1a/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112] [2021-10-29 04:45:23,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:45:23,073 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 04:45:23,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@315134b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:23, skipping insertion in model container [2021-10-29 04:45:23,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:45:23,075 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:45:23,077 INFO L168 Benchmark]: Toolchain (without parser) took 282.25 ms. Allocated memory is still 104.9 MB. Free memory was 62.4 MB in the beginning and 78.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:23,078 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 104.9 MB. Free memory is still 78.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:45:23,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.41 ms. Allocated memory is still 104.9 MB. Free memory was 62.2 MB in the beginning and 78.7 MB in the end (delta: -16.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:23,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 104.9 MB. Free memory is still 78.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.41 ms. Allocated memory is still 104.9 MB. Free memory was 62.2 MB in the beginning and 78.7 MB in the end (delta: -16.4 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: 157]: 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 04:45:25,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:45:25,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:45:25,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:45:25,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:45:25,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:45:25,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:45:25,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:45:25,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:45:25,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:45:25,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:45:25,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:45:25,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:45:25,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:45:25,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:45:25,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:45:25,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:45:25,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:45:25,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:45:25,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:45:25,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:45:25,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:45:25,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:45:25,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:45:25,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:45:25,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:45:25,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:45:25,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:45:25,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:45:25,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:45:25,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:45:25,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:45:25,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:45:25,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:45:25,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:45:25,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:45:25,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:45:25,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:45:25,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:45:25,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:45:25,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:45:25,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:45:25,533 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:45:25,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:45:25,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:45:25,535 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:45:25,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:45:25,535 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:45:25,535 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:45:25,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:45:25,536 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:45:25,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:45:25,538 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:45:25,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:45:25,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:45:25,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:45:25,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:45:25,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:45:25,540 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:45:25,540 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:45:25,540 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:45:25,541 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:45:25,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:45:25,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:45:25,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:45:25,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:45:25,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:45:25,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:45:25,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:45:25,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:45:25,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:45:25,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:45:25,543 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:45:25,543 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:45:25,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:45:25,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:45:25,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:45:25,545 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_7238502b-3c18-4151-a858-d799476c3d1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a [2021-10-29 04:45:25,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:45:25,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:45:25,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:45:25,959 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:45:25,960 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:45:25,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2021-10-29 04:45:26,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/79472f4ac/d80433e549ee4142859d078d3e00ea70/FLAG4830205c3 [2021-10-29 04:45:26,676 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:45:26,680 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2021-10-29 04:45:26,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/79472f4ac/d80433e549ee4142859d078d3e00ea70/FLAG4830205c3 [2021-10-29 04:45:27,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/data/79472f4ac/d80433e549ee4142859d078d3e00ea70 [2021-10-29 04:45:27,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:45:27,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:45:27,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:45:27,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:45:27,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:45:27,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18889ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27, skipping insertion in model container [2021-10-29 04:45:27,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:45:27,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:45:27,318 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_7238502b-3c18-4151-a858-d799476c3d1a/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112] [2021-10-29 04:45:27,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:45:27,369 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:45:27,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:45:27,444 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_7238502b-3c18-4151-a858-d799476c3d1a/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112] [2021-10-29 04:45:27,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:45:27,473 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:45:27,518 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_7238502b-3c18-4151-a858-d799476c3d1a/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112] [2021-10-29 04:45:27,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:45:27,567 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:45:27,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27 WrapperNode [2021-10-29 04:45:27,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:45:27,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:45:27,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:45:27,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:45:27,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:45:27,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:45:27,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:45:27,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:45:27,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:45:27,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:45:27,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:45:27,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:45:27,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (1/1) ... [2021-10-29 04:45:27,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:45:27,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:45:27,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:45:27,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:45:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:45:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:45:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:45:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-29 04:45:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-29 04:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-29 04:45:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-29 04:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-29 04:45:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-29 04:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-29 04:45:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-29 04:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 04:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 04:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:45:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:45:27,816 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 04:45:29,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:45:29,497 INFO L299 CfgBuilder]: Removed 50 assume(true) statements. [2021-10-29 04:45:29,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:45:29 BoogieIcfgContainer [2021-10-29 04:45:29,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:45:29,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:45:29,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:45:29,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:45:29,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:45:27" (1/3) ... [2021-10-29 04:45:29,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e43359b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:45:29, skipping insertion in model container [2021-10-29 04:45:29,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:27" (2/3) ... [2021-10-29 04:45:29,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e43359b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:45:29, skipping insertion in model container [2021-10-29 04:45:29,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:45:29" (3/3) ... [2021-10-29 04:45:29,510 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2021-10-29 04:45:29,516 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 04:45:29,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:45:29,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:45:29,517 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 04:45:29,573 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,573 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,574 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,574 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,574 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,574 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,576 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,579 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,579 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,580 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,580 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,580 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,583 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,584 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,585 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,585 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,585 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,586 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,586 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,587 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,587 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,587 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,587 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,587 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,588 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,589 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,589 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,589 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,589 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,589 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,590 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,590 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,590 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,590 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,590 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,591 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,591 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,591 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,592 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,592 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,592 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,592 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,592 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,593 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,593 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,593 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,594 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,595 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,599 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,599 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,599 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,601 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,601 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,602 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,602 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,602 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,602 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,608 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,609 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,609 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,609 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,609 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,609 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,610 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,610 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,610 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,610 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,611 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,612 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,612 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,612 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,612 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,612 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,613 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,613 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,613 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,613 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,613 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,614 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,615 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,618 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,618 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,618 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,622 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,622 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,623 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,623 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,623 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,623 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,623 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,624 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,625 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,627 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,627 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,627 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,627 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,628 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,628 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,628 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,628 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,630 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,631 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,631 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,631 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,631 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,632 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,632 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,633 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,634 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,636 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:45:29,645 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-29 04:45:29,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:45:29,720 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 04:45:29,721 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-29 04:45:29,753 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 04:45:29,765 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 201 transitions, 434 flow [2021-10-29 04:45:29,768 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 201 transitions, 434 flow [2021-10-29 04:45:29,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 201 transitions, 434 flow [2021-10-29 04:45:29,893 INFO L129 PetriNetUnfolder]: 18/197 cut-off events. [2021-10-29 04:45:29,893 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-29 04:45:29,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 197 events. 18/197 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 109 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 161. Up to 2 conditions per place. [2021-10-29 04:45:29,908 INFO L116 LiptonReduction]: Number of co-enabled transitions 1824 [2021-10-29 04:45:58,134 INFO L131 LiptonReduction]: Checked pairs total: 2936 [2021-10-29 04:45:58,134 INFO L133 LiptonReduction]: Total number of compositions: 190 [2021-10-29 04:45:58,149 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 40 transitions, 112 flow [2021-10-29 04:45:58,194 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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 04:45:58,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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 04:45:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:45:58,219 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:45:58,220 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:45:58,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-29 04:45:58,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:45:58,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1637141200, now seen corresponding path program 1 times [2021-10-29 04:45:58,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:45:58,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442495289] [2021-10-29 04:45:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:58,241 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:45:58,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:45:58,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:45:58,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:45:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:58,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:45:58,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:58,602 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 04:45:58,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:58,772 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 04:45:58,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:45:58,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442495289] [2021-10-29 04:45:58,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442495289] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:45:58,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:45:58,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-29 04:45:58,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544084081] [2021-10-29 04:45:58,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:45:58,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:45:58,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:45:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:45:58,834 INFO L87 Difference]: Start difference. First operand has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 04:45:58,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:45:58,992 INFO L93 Difference]: Finished difference Result 777 states and 3199 transitions. [2021-10-29 04:45:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:45:58,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2021-10-29 04:45:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:45:59,037 INFO L225 Difference]: With dead ends: 777 [2021-10-29 04:45:59,041 INFO L226 Difference]: Without dead ends: 748 [2021-10-29 04:45:59,042 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 04:45:59,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-10-29 04:45:59,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-10-29 04:45:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 747 states have (on average 4.127175368139223) internal successors, (3083), 747 states have internal predecessors, (3083), 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 04:45:59,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 3083 transitions. [2021-10-29 04:45:59,191 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 3083 transitions. Word has length 27 [2021-10-29 04:45:59,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:45:59,193 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 3083 transitions. [2021-10-29 04:45:59,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 04:45:59,195 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 3083 transitions. [2021-10-29 04:45:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-29 04:45:59,210 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:45:59,210 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:45:59,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:59,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:45:59,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-29 04:45:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:45:59,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1571659656, now seen corresponding path program 1 times [2021-10-29 04:45:59,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:45:59,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214614011] [2021-10-29 04:45:59,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:59,414 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:45:59,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:45:59,415 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:45:59,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:45:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:59,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:45:59,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:59,955 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 04:45:59,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:00,272 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 04:46:00,273 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:00,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214614011] [2021-10-29 04:46:00,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214614011] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:00,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:00,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 04:46:00,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442686466] [2021-10-29 04:46:00,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:46:00,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:00,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:46:00,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:46:00,277 INFO L87 Difference]: Start difference. First operand 748 states and 3083 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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 04:46:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:00,921 INFO L93 Difference]: Finished difference Result 1188 states and 4623 transitions. [2021-10-29 04:46:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 04:46:00,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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 29 [2021-10-29 04:46:00,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:00,937 INFO L225 Difference]: With dead ends: 1188 [2021-10-29 04:46:00,937 INFO L226 Difference]: Without dead ends: 1146 [2021-10-29 04:46:00,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:46:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2021-10-29 04:46:01,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 946. [2021-10-29 04:46:01,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 4.058201058201059) internal successors, (3835), 945 states have internal predecessors, (3835), 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 04:46:01,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3835 transitions. [2021-10-29 04:46:01,027 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3835 transitions. Word has length 29 [2021-10-29 04:46:01,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:01,028 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3835 transitions. [2021-10-29 04:46:01,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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 04:46:01,028 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3835 transitions. [2021-10-29 04:46:01,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-29 04:46:01,033 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:01,034 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:46:01,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:01,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:01,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-29 04:46:01,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:01,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1030735046, now seen corresponding path program 1 times [2021-10-29 04:46:01,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:01,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196075363] [2021-10-29 04:46:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:01,249 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:01,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:01,250 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:01,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:46:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:01,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:46:01,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:01,538 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 04:46:01,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:01,736 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 04:46:01,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:01,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196075363] [2021-10-29 04:46:01,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196075363] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:01,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:01,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:46:01,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082223197] [2021-10-29 04:46:01,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:46:01,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:01,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:46:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:46:01,739 INFO L87 Difference]: Start difference. First operand 946 states and 3835 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 04:46:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:01,806 INFO L93 Difference]: Finished difference Result 1298 states and 5030 transitions. [2021-10-29 04:46:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:46:01,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 29 [2021-10-29 04:46:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:01,827 INFO L225 Difference]: With dead ends: 1298 [2021-10-29 04:46:01,827 INFO L226 Difference]: Without dead ends: 1238 [2021-10-29 04:46:01,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 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 04:46:01,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2021-10-29 04:46:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1148. [2021-10-29 04:46:01,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 3.96512641673932) internal successors, (4548), 1147 states have internal predecessors, (4548), 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 04:46:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4548 transitions. [2021-10-29 04:46:01,888 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4548 transitions. Word has length 29 [2021-10-29 04:46:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:01,889 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4548 transitions. [2021-10-29 04:46:01,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 04:46:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4548 transitions. [2021-10-29 04:46:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 04:46:01,895 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:01,895 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:46:01,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:02,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:02,109 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-29 04:46:02,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:02,109 INFO L85 PathProgramCache]: Analyzing trace with hash -83229274, now seen corresponding path program 1 times [2021-10-29 04:46:02,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:02,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956669468] [2021-10-29 04:46:02,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:02,110 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:02,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:02,111 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:02,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:46:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:02,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:46:02,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:02,494 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 04:46:02,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:02,610 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 04:46:02,610 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:02,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956669468] [2021-10-29 04:46:02,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956669468] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:02,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:02,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:46:02,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513564138] [2021-10-29 04:46:02,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:46:02,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:02,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:46:02,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:46:02,614 INFO L87 Difference]: Start difference. First operand 1148 states and 4548 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 04:46:02,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:02,644 INFO L93 Difference]: Finished difference Result 590 states and 2012 transitions. [2021-10-29 04:46:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:46:02,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 30 [2021-10-29 04:46:02,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:02,652 INFO L225 Difference]: With dead ends: 590 [2021-10-29 04:46:02,652 INFO L226 Difference]: Without dead ends: 500 [2021-10-29 04:46:02,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 04:46:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-10-29 04:46:02,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2021-10-29 04:46:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 3.414829659318637) internal successors, (1704), 499 states have internal predecessors, (1704), 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 04:46:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 1704 transitions. [2021-10-29 04:46:02,675 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 1704 transitions. Word has length 30 [2021-10-29 04:46:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:02,675 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 1704 transitions. [2021-10-29 04:46:02,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 04:46:02,676 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 1704 transitions. [2021-10-29 04:46:02,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 04:46:02,679 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:02,680 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:46:02,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:02,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:02,894 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-29 04:46:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1073228866, now seen corresponding path program 1 times [2021-10-29 04:46:02,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:02,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267123033] [2021-10-29 04:46:02,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:02,896 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:02,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:02,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:02,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:46:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:03,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:46:03,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:03,270 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 04:46:03,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:03,364 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 04:46:03,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:03,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267123033] [2021-10-29 04:46:03,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267123033] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:03,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:03,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:46:03,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655022251] [2021-10-29 04:46:03,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:46:03,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:03,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:46:03,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:46:03,367 INFO L87 Difference]: Start difference. First operand 500 states and 1704 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:46:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:03,369 INFO L93 Difference]: Finished difference Result 116 states and 306 transitions. [2021-10-29 04:46:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:46:03,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-29 04:46:03,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:03,370 INFO L225 Difference]: With dead ends: 116 [2021-10-29 04:46:03,370 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:46:03,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 04:46:03,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:46:03,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:46:03,372 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 04:46:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:46:03,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-10-29 04:46:03,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:03,372 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:46:03,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:46:03,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:46:03,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:46:03,375 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:46:03,376 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 04:46:03,376 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 04:46:03,377 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 04:46:03,377 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-29 04:46:03,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:03,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:03,593 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 04:46:03,595 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 04:46:03,595 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:46:03,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:46:03 BasicIcfg [2021-10-29 04:46:03,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:46:03,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:46:03,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:46:03,598 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:46:03,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:45:29" (3/4) ... [2021-10-29 04:46:03,601 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:46:03,607 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-29 04:46:03,608 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-29 04:46:03,608 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-29 04:46:03,608 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-10-29 04:46:03,618 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-10-29 04:46:03,618 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 04:46:03,619 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:46:03,619 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:46:03,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:46:03,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:46:03,675 INFO L168 Benchmark]: Toolchain (without parser) took 36620.04 ms. Allocated memory was 60.8 MB in the beginning and 94.4 MB in the end (delta: 33.6 MB). Free memory was 40.8 MB in the beginning and 32.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:03,676 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:46:03,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.58 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 41.4 MB in the end (delta: -808.2 kB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:03,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.48 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 38.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:03,681 INFO L168 Benchmark]: Boogie Preprocessor took 64.62 ms. Allocated memory is still 60.8 MB. Free memory was 38.8 MB in the beginning and 36.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:03,682 INFO L168 Benchmark]: RCFGBuilder took 1779.06 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 36.5 MB in the beginning and 49.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:03,682 INFO L168 Benchmark]: TraceAbstraction took 34095.68 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 48.6 MB in the beginning and 37.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:03,683 INFO L168 Benchmark]: Witness Printer took 76.30 ms. Allocated memory is still 94.4 MB. Free memory was 37.0 MB in the beginning and 32.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:03,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 512.58 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 41.4 MB in the end (delta: -808.2 kB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.48 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 38.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.62 ms. Allocated memory is still 60.8 MB. Free memory was 38.8 MB in the beginning and 36.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1779.06 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 36.5 MB in the beginning and 49.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 34095.68 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 48.6 MB in the beginning and 37.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * Witness Printer took 76.30 ms. Allocated memory is still 94.4 MB. Free memory was 37.0 MB in the beginning and 32.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.3s, 196 PlacesBefore, 47 PlacesAfterwards, 201 TransitionsBefore, 40 TransitionsAfterwards, 1824 CoEnabledTransitionPairs, 7 FixpointIterations, 124 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 8 ConcurrentYvCompositions, 12 ChoiceCompositions, 190 TotalNumberOfCompositions, 2936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2432, positive: 2362, positive conditional: 0, positive unconditional: 2362, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1198, positive: 1179, positive conditional: 0, positive unconditional: 1179, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1198, positive: 1177, positive conditional: 0, positive unconditional: 1177, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 847, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 626, negative conditional: 0, negative unconditional: 626, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2432, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 1198, unknown conditional: 0, unknown unconditional: 1198] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 148]: 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 9 procedures, 216 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 33.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 28.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 192 SDtfs, 203 SDslu, 284 SDs, 0 SdLazy, 128 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1148occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 290 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 932 SizeOfPredicates, 22 NumberOfNonLiveVariables, 737 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 12/12 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 04:46:03,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7238502b-3c18-4151-a858-d799476c3d1a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...