./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8 --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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:24:57,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:24:57,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:24:57,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:24:57,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:24:57,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:24:57,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:24:57,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:24:57,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:24:57,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:24:57,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:24:57,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:24:57,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:24:57,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:24:57,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:24:57,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:24:57,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:24:57,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:24:57,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:24:57,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:24:57,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:24:57,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:24:57,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:24:57,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:24:57,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:24:57,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:24:57,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:24:57,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:24:57,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:24:57,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:24:57,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:24:57,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:24:57,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:24:57,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:24:57,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:24:57,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:24:57,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:24:57,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:24:57,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:24:57,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:24:57,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:24:57,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:24:57,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:24:57,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:24:57,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:24:57,412 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:24:57,413 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:24:57,413 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:24:57,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:24:57,413 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:24:57,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:24:57,414 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:24:57,415 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:24:57,415 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:24:57,415 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:24:57,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:24:57,416 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:24:57,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:24:57,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:24:57,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:24:57,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:24:57,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:24:57,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:24:57,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:24:57,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:24:57,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:24:57,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:24:57,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:24:57,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:24:57,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:24:57,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:24:57,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:24:57,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:24:57,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:24:57,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:24:57,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:24:57,422 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:24:57,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:24:57,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:24:57,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:24:57,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:24:57,423 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_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2021-11-07 02:24:57,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:24:57,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:24:57,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:24:57,733 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:24:57,734 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:24:57,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-07 02:24:57,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/33f5656a4/82812e8684694d73980d93e7657eb8dd/FLAG6fc56e790 [2021-11-07 02:24:58,276 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:24:58,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-07 02:24:58,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/33f5656a4/82812e8684694d73980d93e7657eb8dd/FLAG6fc56e790 [2021-11-07 02:24:58,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/33f5656a4/82812e8684694d73980d93e7657eb8dd [2021-11-07 02:24:58,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:24:58,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:24:58,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:24:58,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:24:58,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:24:58,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:24:58" (1/1) ... [2021-11-07 02:24:58,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644cf4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:58, skipping insertion in model container [2021-11-07 02:24:58,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:24:58" (1/1) ... [2021-11-07 02:24:58,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:24:58,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:24:58,923 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_d8f1380a-956f-4455-afdd-e9af64b5c7d4/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-07 02:24:58,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:24:58,943 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) [2021-11-07 02:24:58,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2dbfc13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:58, skipping insertion in model container [2021-11-07 02:24:58,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:24:58,944 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:24:58,947 INFO L168 Benchmark]: Toolchain (without parser) took 276.62 ms. Allocated memory is still 113.2 MB. Free memory was 76.2 MB in the beginning and 87.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:58,948 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 86.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:24:58,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.86 ms. Allocated memory is still 113.2 MB. Free memory was 76.2 MB in the beginning and 87.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:58,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 86.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.86 ms. Allocated memory is still 113.2 MB. Free memory was 76.2 MB in the beginning and 87.9 MB in the end (delta: -11.7 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: 153]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8 --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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:25:01,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:25:01,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:25:01,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:25:01,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:25:01,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:25:01,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:25:01,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:25:01,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:25:01,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:25:01,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:25:01,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:25:01,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:25:01,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:25:01,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:25:01,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:25:01,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:25:01,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:25:01,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:25:01,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:25:01,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:25:01,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:25:01,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:25:01,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:25:01,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:25:01,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:25:01,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:25:01,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:25:01,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:25:01,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:25:01,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:25:01,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:25:01,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:25:01,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:25:01,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:25:01,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:25:01,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:25:01,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:25:01,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:25:01,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:25:01,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:25:01,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:25:01,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:25:01,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:25:01,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:25:01,465 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:25:01,466 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:25:01,466 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:25:01,466 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:25:01,466 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:25:01,466 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:25:01,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:25:01,469 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:25:01,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:25:01,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:25:01,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:25:01,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:25:01,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:25:01,470 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:25:01,470 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:25:01,471 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:25:01,471 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:25:01,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:25:01,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:25:01,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:25:01,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:25:01,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:25:01,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:25:01,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:25:01,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:25:01,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:25:01,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:25:01,473 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:25:01,473 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:01,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:25:01,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:25:01,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:25:01,474 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_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2021-11-07 02:25:01,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:25:01,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:25:01,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:25:01,907 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:25:01,908 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:25:01,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-07 02:25:01,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/c526b9349/27e969a3022847f59e4b3ea2947354d4/FLAGa4e346005 [2021-11-07 02:25:02,586 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:25:02,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-07 02:25:02,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/c526b9349/27e969a3022847f59e4b3ea2947354d4/FLAGa4e346005 [2021-11-07 02:25:02,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/data/c526b9349/27e969a3022847f59e4b3ea2947354d4 [2021-11-07 02:25:02,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:25:02,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:25:02,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:25:02,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:25:02,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:25:02,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:25:02" (1/1) ... [2021-11-07 02:25:02,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4aa51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:02, skipping insertion in model container [2021-11-07 02:25:02,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:25:02" (1/1) ... [2021-11-07 02:25:03,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:25:03,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:25:03,236 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_d8f1380a-956f-4455-afdd-e9af64b5c7d4/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-07 02:25:03,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:25:03,259 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:25:03,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:25:03,293 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_d8f1380a-956f-4455-afdd-e9af64b5c7d4/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-07 02:25:03,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:25:03,310 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:25:03,336 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_d8f1380a-956f-4455-afdd-e9af64b5c7d4/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-07 02:25:03,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:25:03,358 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:25:03,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03 WrapperNode [2021-11-07 02:25:03,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:25:03,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:25:03,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:25:03,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:25:03,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:25:03,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:25:03,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:25:03,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:25:03,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:25:03,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:25:03,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:25:03,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:25:03,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (1/1) ... [2021-11-07 02:25:03,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:25:03,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:03,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:25:03,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:25:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:25:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:25:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:25:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 02:25:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 02:25:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 02:25:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 02:25:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 02:25:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 02:25:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-07 02:25:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-07 02:25:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 02:25:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 02:25:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:25:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:25:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:25:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:25:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:25:03,621 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 02:25:05,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:25:05,109 INFO L299 CfgBuilder]: Removed 48 assume(true) statements. [2021-11-07 02:25:05,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:25:05 BoogieIcfgContainer [2021-11-07 02:25:05,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:25:05,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:25:05,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:25:05,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:25:05,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:25:02" (1/3) ... [2021-11-07 02:25:05,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e506d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:25:05, skipping insertion in model container [2021-11-07 02:25:05,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:25:03" (2/3) ... [2021-11-07 02:25:05,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e506d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:25:05, skipping insertion in model container [2021-11-07 02:25:05,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:25:05" (3/3) ... [2021-11-07 02:25:05,121 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2021-11-07 02:25:05,127 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 02:25:05,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:25:05,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:25:05,127 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 02:25:05,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,180 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,180 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,180 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,180 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,181 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,181 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,181 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,182 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,191 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,195 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,195 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,196 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,196 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,201 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,209 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,210 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,210 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,210 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,212 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,212 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,212 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,213 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,213 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,214 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,214 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,214 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,214 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,214 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,214 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,216 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,217 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,217 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,217 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,218 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,218 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,218 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,219 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,219 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,219 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,221 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,221 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,221 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,222 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,222 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,224 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,225 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,225 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,225 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,225 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,225 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,225 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,225 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,226 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,226 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,226 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,226 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,226 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,226 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,226 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,227 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,227 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,227 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,227 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,227 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,227 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,228 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,228 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,228 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,228 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,228 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,228 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,228 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,229 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,229 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,229 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,229 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,240 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,241 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,241 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,273 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,273 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,273 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,276 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,276 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,276 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,277 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,277 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,277 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,277 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,277 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,277 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,277 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,278 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,278 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,278 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,281 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,281 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,282 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,289 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,289 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,289 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,289 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,289 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,290 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,290 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,291 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,291 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:25:05,308 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-11-07 02:25:05,368 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:25:05,380 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 [2021-11-07 02:25:05,380 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-07 02:25:05,403 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 02:25:05,415 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 182 transitions, 408 flow [2021-11-07 02:25:05,418 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 182 transitions, 408 flow [2021-11-07 02:25:05,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 182 transitions, 408 flow [2021-11-07 02:25:05,497 INFO L129 PetriNetUnfolder]: 14/167 cut-off events. [2021-11-07 02:25:05,498 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 02:25:05,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 167 events. 14/167 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 153 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 142. Up to 3 conditions per place. [2021-11-07 02:25:05,518 INFO L116 LiptonReduction]: Number of co-enabled transitions 2612 [2021-11-07 02:25:21,730 INFO L131 LiptonReduction]: Checked pairs total: 7791 [2021-11-07 02:25:21,730 INFO L133 LiptonReduction]: Total number of compositions: 155 [2021-11-07 02:25:21,740 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 49 transitions, 142 flow [2021-11-07 02:25:21,791 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 471 states, 470 states have (on average 3.3957446808510636) internal successors, (1596), 470 states have internal predecessors, (1596), 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) [2021-11-07 02:25:21,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 470 states have (on average 3.3957446808510636) internal successors, (1596), 470 states have internal predecessors, (1596), 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) [2021-11-07 02:25:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:25:21,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:21,812 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, 1] [2021-11-07 02:25:21,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:21,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:21,818 INFO L85 PathProgramCache]: Analyzing trace with hash 120659033, now seen corresponding path program 1 times [2021-11-07 02:25:21,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:21,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288467640] [2021-11-07 02:25:21,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:21,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:21,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:21,845 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:21,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:25:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:22,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:25:22,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:22,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:22,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:22,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288467640] [2021-11-07 02:25:22,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288467640] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:22,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:22,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:25:22,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365821529] [2021-11-07 02:25:22,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:25:22,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:22,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:25:22,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:25:22,351 INFO L87 Difference]: Start difference. First operand has 471 states, 470 states have (on average 3.3957446808510636) internal successors, (1596), 470 states have internal predecessors, (1596), 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 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-11-07 02:25:22,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:22,532 INFO L93 Difference]: Finished difference Result 1084 states and 3763 transitions. [2021-11-07 02:25:22,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:25:22,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 31 [2021-11-07 02:25:22,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:22,575 INFO L225 Difference]: With dead ends: 1084 [2021-11-07 02:25:22,575 INFO L226 Difference]: Without dead ends: 1065 [2021-11-07 02:25:22,577 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:25:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-11-07 02:25:22,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 721. [2021-11-07 02:25:22,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 3.3930555555555557) internal successors, (2443), 720 states have internal predecessors, (2443), 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) [2021-11-07 02:25:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2443 transitions. [2021-11-07 02:25:22,701 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2443 transitions. Word has length 31 [2021-11-07 02:25:22,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:22,702 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2443 transitions. [2021-11-07 02:25:22,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-11-07 02:25:22,703 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2443 transitions. [2021-11-07 02:25:22,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:25:22,708 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:22,708 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, 1] [2021-11-07 02:25:22,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:22,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:22,943 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:22,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:22,943 INFO L85 PathProgramCache]: Analyzing trace with hash -263421575, now seen corresponding path program 2 times [2021-11-07 02:25:22,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:22,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41392635] [2021-11-07 02:25:22,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:25:22,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:22,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:22,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:22,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:25:23,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 02:25:23,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:23,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:25:23,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:23,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:23,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:23,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41392635] [2021-11-07 02:25:23,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41392635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:23,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:23,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:25:23,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76673632] [2021-11-07 02:25:23,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:25:23,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:25:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:25:23,423 INFO L87 Difference]: Start difference. First operand 721 states and 2443 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 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) [2021-11-07 02:25:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:23,522 INFO L93 Difference]: Finished difference Result 1084 states and 3758 transitions. [2021-11-07 02:25:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:25:23,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 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 31 [2021-11-07 02:25:23,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:23,534 INFO L225 Difference]: With dead ends: 1084 [2021-11-07 02:25:23,534 INFO L226 Difference]: Without dead ends: 1065 [2021-11-07 02:25:23,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:25:23,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-11-07 02:25:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 725. [2021-11-07 02:25:23,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 724 states have (on average 3.388121546961326) internal successors, (2453), 724 states have internal predecessors, (2453), 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) [2021-11-07 02:25:23,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 2453 transitions. [2021-11-07 02:25:23,591 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 2453 transitions. Word has length 31 [2021-11-07 02:25:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:23,592 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 2453 transitions. [2021-11-07 02:25:23,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 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) [2021-11-07 02:25:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 2453 transitions. [2021-11-07 02:25:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:25:23,596 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:23,596 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, 1, 1] [2021-11-07 02:25:23,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 02:25:23,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:23,809 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:23,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:23,809 INFO L85 PathProgramCache]: Analyzing trace with hash -556076993, now seen corresponding path program 1 times [2021-11-07 02:25:23,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:23,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491775365] [2021-11-07 02:25:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:23,811 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:23,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:23,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:23,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:25:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:24,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:25:24,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:24,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:24,645 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:24,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491775365] [2021-11-07 02:25:24,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491775365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:24,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:24,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-07 02:25:24,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632633484] [2021-11-07 02:25:24,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:25:24,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:25:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:25:24,647 INFO L87 Difference]: Start difference. First operand 725 states and 2453 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:25,006 INFO L93 Difference]: Finished difference Result 893 states and 2857 transitions. [2021-11-07 02:25:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:25:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 02:25:25,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:25,015 INFO L225 Difference]: With dead ends: 893 [2021-11-07 02:25:25,015 INFO L226 Difference]: Without dead ends: 693 [2021-11-07 02:25:25,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:25:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-11-07 02:25:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 655. [2021-11-07 02:25:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 3.40519877675841) internal successors, (2227), 654 states have internal predecessors, (2227), 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) [2021-11-07 02:25:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2227 transitions. [2021-11-07 02:25:25,047 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2227 transitions. Word has length 32 [2021-11-07 02:25:25,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:25,048 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 2227 transitions. [2021-11-07 02:25:25,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2227 transitions. [2021-11-07 02:25:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:25:25,052 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:25,052 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, 1, 1] [2021-11-07 02:25:25,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:25,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:25,265 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:25,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:25,266 INFO L85 PathProgramCache]: Analyzing trace with hash -245840893, now seen corresponding path program 2 times [2021-11-07 02:25:25,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:25,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419488180] [2021-11-07 02:25:25,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:25:25,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:25,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:25,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:25,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:25:25,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 02:25:25,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:25,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:25:25,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:26,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:26,237 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:26,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419488180] [2021-11-07 02:25:26,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419488180] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:26,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:26,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 10 [2021-11-07 02:25:26,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286394820] [2021-11-07 02:25:26,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:25:26,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:25:26,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:25:26,239 INFO L87 Difference]: Start difference. First operand 655 states and 2227 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2021-11-07 02:25:26,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:26,834 INFO L93 Difference]: Finished difference Result 951 states and 2985 transitions. [2021-11-07 02:25:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 02:25:26,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 02:25:26,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:26,845 INFO L225 Difference]: With dead ends: 951 [2021-11-07 02:25:26,846 INFO L226 Difference]: Without dead ends: 770 [2021-11-07 02:25:26,846 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-11-07 02:25:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-11-07 02:25:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 732. [2021-11-07 02:25:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 3.4350205198358412) internal successors, (2511), 731 states have internal predecessors, (2511), 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) [2021-11-07 02:25:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 2511 transitions. [2021-11-07 02:25:26,884 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 2511 transitions. Word has length 32 [2021-11-07 02:25:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:26,884 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 2511 transitions. [2021-11-07 02:25:26,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2021-11-07 02:25:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 2511 transitions. [2021-11-07 02:25:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:25:26,888 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:26,888 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, 1, 1, 1] [2021-11-07 02:25:26,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:27,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:27,101 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:27,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:27,102 INFO L85 PathProgramCache]: Analyzing trace with hash -41755546, now seen corresponding path program 1 times [2021-11-07 02:25:27,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:27,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043692449] [2021-11-07 02:25:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:27,103 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:27,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:27,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:27,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:25:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:27,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:25:27,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:27,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:27,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:27,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043692449] [2021-11-07 02:25:27,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043692449] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:27,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [335565085] [2021-11-07 02:25:27,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:27,871 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:27,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:25:27,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:25:27,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 02:25:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:28,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:25:28,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:28,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:28,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [335565085] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:28,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937247881] [2021-11-07 02:25:28,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:28,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:28,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:28,656 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:28,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 02:25:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:28,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:25:28,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:29,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:29,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937247881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:29,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 02:25:29,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 18 [2021-11-07 02:25:29,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901882277] [2021-11-07 02:25:29,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:25:29,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:25:29,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-11-07 02:25:29,287 INFO L87 Difference]: Start difference. First operand 732 states and 2511 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-11-07 02:25:29,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:29,578 INFO L93 Difference]: Finished difference Result 766 states and 2558 transitions. [2021-11-07 02:25:29,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:25:29,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 02:25:29,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:29,589 INFO L225 Difference]: With dead ends: 766 [2021-11-07 02:25:29,590 INFO L226 Difference]: Without dead ends: 766 [2021-11-07 02:25:29,591 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2021-11-07 02:25:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-11-07 02:25:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 674. [2021-11-07 02:25:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 3.424962852897474) internal successors, (2305), 673 states have internal predecessors, (2305), 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) [2021-11-07 02:25:29,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 2305 transitions. [2021-11-07 02:25:29,643 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 2305 transitions. Word has length 33 [2021-11-07 02:25:29,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:29,644 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 2305 transitions. [2021-11-07 02:25:29,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-11-07 02:25:29,644 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 2305 transitions. [2021-11-07 02:25:29,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:25:29,648 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:29,648 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, 1, 1, 1] [2021-11-07 02:25:29,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:29,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:30,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:30,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:30,252 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:30,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:30,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1846159690, now seen corresponding path program 2 times [2021-11-07 02:25:30,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:30,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950777395] [2021-11-07 02:25:30,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:25:30,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:30,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:30,255 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:30,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:25:30,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 02:25:30,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:30,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:25:30,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:31,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:31,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:31,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:31,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950777395] [2021-11-07 02:25:31,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950777395] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:31,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1403430475] [2021-11-07 02:25:31,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:25:31,317 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:31,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:25:31,319 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:25:31,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-07 02:25:31,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 02:25:31,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:31,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:25:31,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:32,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:32,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1403430475] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:32,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566743363] [2021-11-07 02:25:32,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:25:32,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:32,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:32,409 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:32,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 02:25:32,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 02:25:32,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:32,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:25:32,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:32,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:33,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566743363] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:33,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 02:25:33,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 15 [2021-11-07 02:25:33,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857917894] [2021-11-07 02:25:33,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:25:33,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:33,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:25:33,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:25:33,148 INFO L87 Difference]: Start difference. First operand 674 states and 2305 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:33,633 INFO L93 Difference]: Finished difference Result 1096 states and 3538 transitions. [2021-11-07 02:25:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 02:25:33,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 02:25:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:33,646 INFO L225 Difference]: With dead ends: 1096 [2021-11-07 02:25:33,646 INFO L226 Difference]: Without dead ends: 1036 [2021-11-07 02:25:33,647 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2021-11-07 02:25:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-07 02:25:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 650. [2021-11-07 02:25:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 3.354391371340524) internal successors, (2177), 649 states have internal predecessors, (2177), 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) [2021-11-07 02:25:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2177 transitions. [2021-11-07 02:25:33,691 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2177 transitions. Word has length 33 [2021-11-07 02:25:33,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:33,692 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 2177 transitions. [2021-11-07 02:25:33,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2177 transitions. [2021-11-07 02:25:33,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:25:33,697 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:33,697 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, 1, 1, 1] [2021-11-07 02:25:33,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:33,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:34,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:34,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:34,320 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:34,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2119857026, now seen corresponding path program 3 times [2021-11-07 02:25:34,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:34,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42412569] [2021-11-07 02:25:34,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:25:34,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:34,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:34,336 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:34,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:25:34,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-07 02:25:34,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:34,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:25:34,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:35,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:35,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:35,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:35,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42412569] [2021-11-07 02:25:35,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42412569] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:35,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [418453496] [2021-11-07 02:25:35,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:25:35,326 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:35,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:25:35,333 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:25:35,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 02:25:35,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-07 02:25:35,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:35,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:25:35,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:36,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:36,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:36,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [418453496] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:36,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413984419] [2021-11-07 02:25:36,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:25:36,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:36,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:36,387 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:36,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 02:25:36,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-07 02:25:36,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:36,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:25:36,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:37,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:37,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413984419] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 02:25:37,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-11-07 02:25:37,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5, 5, 5, 6] total 17 [2021-11-07 02:25:37,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517417568] [2021-11-07 02:25:37,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:25:37,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:37,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:25:37,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:25:37,279 INFO L87 Difference]: Start difference. First operand 650 states and 2177 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:37,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:37,390 INFO L93 Difference]: Finished difference Result 896 states and 3051 transitions. [2021-11-07 02:25:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:25:37,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 02:25:37,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:37,400 INFO L225 Difference]: With dead ends: 896 [2021-11-07 02:25:37,400 INFO L226 Difference]: Without dead ends: 896 [2021-11-07 02:25:37,401 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:25:37,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2021-11-07 02:25:37,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 668. [2021-11-07 02:25:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 667 states have (on average 3.3793103448275863) internal successors, (2254), 667 states have internal predecessors, (2254), 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) [2021-11-07 02:25:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 2254 transitions. [2021-11-07 02:25:37,437 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 2254 transitions. Word has length 33 [2021-11-07 02:25:37,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:37,437 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 2254 transitions. [2021-11-07 02:25:37,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:37,438 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 2254 transitions. [2021-11-07 02:25:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:25:37,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:37,440 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, 1, 1, 1] [2021-11-07 02:25:37,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:37,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-07 02:25:37,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:38,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:38,045 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:38,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:38,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1890421302, now seen corresponding path program 4 times [2021-11-07 02:25:38,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:38,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737718249] [2021-11-07 02:25:38,046 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 02:25:38,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:38,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:38,047 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:38,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 02:25:38,439 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 02:25:38,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:38,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:25:38,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:38,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:38,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:38,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:38,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737718249] [2021-11-07 02:25:38,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737718249] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:38,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [920086057] [2021-11-07 02:25:38,853 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 02:25:38,853 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:38,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:25:38,859 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:25:38,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-07 02:25:39,427 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 02:25:39,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:39,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:25:39,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:39,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:39,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [920086057] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:39,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679141201] [2021-11-07 02:25:39,805 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 02:25:39,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:39,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:39,807 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:39,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 02:25:40,252 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 02:25:40,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:40,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:25:40,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:40,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:40,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679141201] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:40,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:25:40,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 20 [2021-11-07 02:25:40,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509856873] [2021-11-07 02:25:40,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 02:25:40,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:40,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 02:25:40,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2021-11-07 02:25:40,684 INFO L87 Difference]: Start difference. First operand 668 states and 2254 transitions. Second operand has 20 states, 20 states have (on average 3.6) internal successors, (72), 20 states have internal predecessors, (72), 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) [2021-11-07 02:25:42,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:42,281 INFO L93 Difference]: Finished difference Result 1524 states and 5099 transitions. [2021-11-07 02:25:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 02:25:42,283 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.6) internal successors, (72), 20 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 02:25:42,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:42,295 INFO L225 Difference]: With dead ends: 1524 [2021-11-07 02:25:42,295 INFO L226 Difference]: Without dead ends: 1524 [2021-11-07 02:25:42,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=236, Invalid=954, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 02:25:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2021-11-07 02:25:42,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1078. [2021-11-07 02:25:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 3.384401114206128) internal successors, (3645), 1077 states have internal predecessors, (3645), 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) [2021-11-07 02:25:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 3645 transitions. [2021-11-07 02:25:42,350 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 3645 transitions. Word has length 33 [2021-11-07 02:25:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:42,351 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 3645 transitions. [2021-11-07 02:25:42,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.6) internal successors, (72), 20 states have internal predecessors, (72), 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) [2021-11-07 02:25:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 3645 transitions. [2021-11-07 02:25:42,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 02:25:42,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:42,355 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, 1, 1, 1, 1] [2021-11-07 02:25:42,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:42,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:42,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:42,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:42,972 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:42,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:42,972 INFO L85 PathProgramCache]: Analyzing trace with hash -719525482, now seen corresponding path program 1 times [2021-11-07 02:25:42,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:42,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035799672] [2021-11-07 02:25:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:42,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:42,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:42,974 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:43,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 02:25:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:43,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:25:43,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:43,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:43,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:43,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035799672] [2021-11-07 02:25:43,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035799672] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:43,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1464683375] [2021-11-07 02:25:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:43,927 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:43,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:25:43,928 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:25:43,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-07 02:25:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:44,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:25:44,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:44,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:44,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1464683375] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:44,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079522736] [2021-11-07 02:25:44,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:44,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:44,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:44,873 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:44,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-07 02:25:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:45,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 02:25:45,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:45,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:25:45,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079522736] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:45,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:25:45,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 20 [2021-11-07 02:25:45,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257855589] [2021-11-07 02:25:45,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 02:25:45,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:45,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 02:25:45,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2021-11-07 02:25:45,895 INFO L87 Difference]: Start difference. First operand 1078 states and 3645 transitions. Second operand has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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) [2021-11-07 02:25:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:47,567 INFO L93 Difference]: Finished difference Result 1300 states and 4128 transitions. [2021-11-07 02:25:47,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 02:25:47,568 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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 34 [2021-11-07 02:25:47,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:47,580 INFO L225 Difference]: With dead ends: 1300 [2021-11-07 02:25:47,580 INFO L226 Difference]: Without dead ends: 1183 [2021-11-07 02:25:47,581 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=236, Invalid=954, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 02:25:47,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-11-07 02:25:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 639. [2021-11-07 02:25:47,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 638 states have (on average 3.2978056426332287) internal successors, (2104), 638 states have internal predecessors, (2104), 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) [2021-11-07 02:25:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 2104 transitions. [2021-11-07 02:25:47,640 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 2104 transitions. Word has length 34 [2021-11-07 02:25:47,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:47,640 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 2104 transitions. [2021-11-07 02:25:47,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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) [2021-11-07 02:25:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 2104 transitions. [2021-11-07 02:25:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:25:47,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:47,644 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:47,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:47,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:48,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:48,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:48,245 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATION, thread1Err4INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2021-11-07 02:25:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash 886945517, now seen corresponding path program 1 times [2021-11-07 02:25:48,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:48,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400017143] [2021-11-07 02:25:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:48,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:48,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:48,247 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:48,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-07 02:25:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:48,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-07 02:25:48,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:48,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 49 [2021-11-07 02:25:49,257 INFO L354 Elim1Store]: treesize reduction 163, result has 15.1 percent of original size [2021-11-07 02:25:49,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 39 [2021-11-07 02:33:00,279 WARN L207 SmtUtils]: Spent 7.04 m on a formula simplification. DAG size of input: 376 DAG size of output: 186 [2021-11-07 02:33:00,282 INFO L354 Elim1Store]: treesize reduction 1586, result has 28.0 percent of original size [2021-11-07 02:33:00,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 108 treesize of output 659 [2021-11-07 02:33:37,922 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-07 02:33:37,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:33:37,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400017143] [2021-11-07 02:33:37,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-07 02:33:37,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-07 02:33:37,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1181391567] [2021-11-07 02:33:37,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:33:37,925 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:33:37,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:33:37,926 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:33:37,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-07 02:33:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:33:39,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-07 02:33:39,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:33:39,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-07 02:33:39,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96266174] [2021-11-07 02:33:39,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:33:39,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:33:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:33:39,236 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:33:39,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-07 02:33:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:33:39,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-07 02:33:39,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:33:39,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-07 02:33:39,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:33:39,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 02:33:39,866 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 02:33:39,866 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 02:33:39,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:33:39,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0INUSE_VIOLATION [2021-11-07 02:33:39,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4INUSE_VIOLATION [2021-11-07 02:33:39,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 02:33:39,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-11-07 02:33:39,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork1Err2INUSE_VIOLATION [2021-11-07 02:33:39,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork1Err5INUSE_VIOLATION [2021-11-07 02:33:39,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2021-11-07 02:33:40,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-07 02:33:40,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-11-07 02:33:40,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f1380a-956f-4455-afdd-e9af64b5c7d4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:33:40,478 INFO L731 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1] [2021-11-07 02:33:40,481 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 02:33:40,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:33:40,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:33:40 BasicIcfg [2021-11-07 02:33:40,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:33:40,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:33:40,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:33:40,514 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:33:40,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:25:05" (3/4) ... [2021-11-07 02:33:40,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:33:40,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:33:40,521 INFO L168 Benchmark]: Toolchain (without parser) took 517530.56 ms. Allocated memory was 54.5 MB in the beginning and 146.8 MB in the end (delta: 92.3 MB). Free memory was 29.7 MB in the beginning and 34.0 MB in the end (delta: -4.3 MB). Peak memory consumption was 87.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:33:40,521 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 24.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:33:40,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.05 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 31.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:33:40,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.76 ms. Allocated memory is still 54.5 MB. Free memory was 31.9 MB in the beginning and 29.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:33:40,523 INFO L168 Benchmark]: Boogie Preprocessor took 95.94 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 27.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:33:40,523 INFO L168 Benchmark]: RCFGBuilder took 1579.15 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.5 MB in the beginning and 43.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:33:40,524 INFO L168 Benchmark]: TraceAbstraction took 515400.19 ms. Allocated memory was 67.1 MB in the beginning and 146.8 MB in the end (delta: 79.7 MB). Free memory was 43.3 MB in the beginning and 34.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 87.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:33:40,525 INFO L168 Benchmark]: Witness Printer took 6.00 ms. Allocated memory is still 146.8 MB. Free memory is still 34.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:33:40,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 24.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.05 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 31.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.76 ms. Allocated memory is still 54.5 MB. Free memory was 31.9 MB in the beginning and 29.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.94 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 27.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1579.15 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.5 MB in the beginning and 43.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 515400.19 ms. Allocated memory was 67.1 MB in the beginning and 146.8 MB in the end (delta: 79.7 MB). Free memory was 43.3 MB in the beginning and 34.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 87.8 MB. Max. memory is 16.1 GB. * Witness Printer took 6.00 ms. Allocated memory is still 146.8 MB. Free memory is still 34.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3s, 181 PlacesBefore, 56 PlacesAfterwards, 182 TransitionsBefore, 49 TransitionsAfterwards, 2612 CoEnabledTransitionPairs, 8 FixpointIterations, 93 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 10 ConcurrentYvCompositions, 8 ChoiceCompositions, 155 TotalNumberOfCompositions, 7791 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5247, positive: 5020, positive conditional: 0, positive unconditional: 5020, negative: 227, negative conditional: 0, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1911, positive: 1872, positive conditional: 0, positive unconditional: 1872, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1911, positive: 1865, positive conditional: 0, positive unconditional: 1865, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 791, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 759, negative conditional: 0, negative unconditional: 759, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5247, positive: 3148, positive conditional: 0, positive unconditional: 3148, negative: 188, negative conditional: 0, negative unconditional: 188, unknown: 1911, unknown conditional: 0, unknown unconditional: 1911] , Statistics on independence cache: Total cache size (in pairs): 273, Positive cache size: 253, Positive conditional cache size: 0, Positive unconditional cache size: 253, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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 - UnprovableResult [Line: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L41] 0 int* X_0; [L42] 0 int n_1, s_2, i_3, t_4, t_5, s_6, i_7, t_8; [L123] 0 pthread_t t1, t4; [L126] 0 n_1 = __VERIFIER_nondet_int() [L127] 0 s_2 = __VERIFIER_nondet_int() [L128] 0 i_3 = __VERIFIER_nondet_int() [L129] 0 t_4 = __VERIFIER_nondet_int() [L130] 0 t_5 = __VERIFIER_nondet_int() [L131] 0 s_6 = __VERIFIER_nondet_int() [L132] 0 i_7 = __VERIFIER_nondet_int() [L133] 0 t_8 = __VERIFIER_nondet_int() [L38] COND TRUE 0 !cond [L38] COND FALSE 0 !(!cond) [L38] COND TRUE 0 !cond [L153] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L154] 0 int i = 0; [L154] COND TRUE 0 i < size [L155] 0 arr[i] = __VERIFIER_nondet_int() [L154] 0 i++ [L154] COND TRUE 0 i < size [L155] 0 arr[i] = __VERIFIER_nondet_int() [L154] 0 i++ [L157] 0 return arr; [L135] 0 X_0 = create_fresh_int_array(n_1 + 1) [L138] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L84] 1 pthread_t t2, t3; [L87] 1 i_3 = 0 [L88] 1 s_2 = 0 [L91] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) [L48] COND TRUE 2 __VERIFIER_nondet_bool() [L38] COND FALSE 2 !(!cond) [L51] 2 i_3++ [L52] EXPR 2 X_0[i_3] [L52] 2 t_4 = X_0[i_3] [L38] COND FALSE 2 !(!cond) [L38] COND FALSE 2 !(!cond) [L163] 2 return a + b; [L55] 2 s_2 = plus(s_2, t_4) [L38] COND FALSE 2 !(!cond) [L62] 2 return 0; [L92] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) [L38] COND TRUE 3 !cond [L80] 3 return 0; [L93] 1 \read(t2) [L93] FCALL, JOIN 2 pthread_join(t2, 0) [L94] 1 \read(t3) [L94] FCALL, JOIN 3 pthread_join(t3, 0) [L96] 1 return 0; [L96] 1 return 0; [L96] 1 return 0; [L139] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L140] 0 \read(t1) [L140] FCALL, JOIN 1 pthread_join(t1, 0) [L141] 0 \read(t4) [L101] 4 i_7 = 0 [L102] 4 s_6 = 0 [L105] COND TRUE 4 __VERIFIER_nondet_bool() [L38] COND TRUE 4 !cond [L108] 4 i_7++ [L109] EXPR 4 X_0[i_7] [L109] 4 t_8 = X_0[i_7] [L38] COND TRUE 4 !cond [L38] COND FALSE 4 !(!cond) [L163] 4 return a + b; [L112] 4 s_6 = plus(s_6, t_8) [L38] COND FALSE 4 !(!cond) [L119] 4 return 0; [L141] FCALL, JOIN 4 pthread_join(t4, 0) [L38] COND TRUE 0 !cond [L144] 0 reach_error() - UnprovableResult [Line: 92]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 139]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 138]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 220 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 515.1s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 16.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 827 SDtfs, 1812 SDslu, 3488 SDs, 0 SdLazy, 1054 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1288 GetRequests, 1140 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1078occurred in iteration=8, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 2456 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 477.6s InterpolantComputationTime, 660 NumberOfCodeBlocks, 660 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1210 ConstructedInterpolants, 0 QuantifiedInterpolants, 5327 SizeOfPredicates, 105 NumberOfNonLiveVariables, 2705 ConjunctsInSsa, 219 ConjunctsInUnsatCore, 38 InterpolantComputations, 13 PerfectInterpolantSequences, 39/64 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN