./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:07:00,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:07:00,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:07:00,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:07:00,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:07:00,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:07:00,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:07:00,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:07:00,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:07:00,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:07:00,389 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:07:00,391 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:07:00,391 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:07:00,393 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:07:00,393 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:07:00,394 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:07:00,394 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:07:00,394 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:07:00,395 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:07:00,395 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:07:00,396 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:07:00,396 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:07:00,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:07:00,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:07:00,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:07:00,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:07:00,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:07:00,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:07:00,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:07:00,401 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:07:00,402 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:07:00,402 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:07:00,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:07:00,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:07:00,403 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:07:00,403 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:07:00,403 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:07:00,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:07:00,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:07:00,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:07:00,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:07:00,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:07:00,406 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:07:00,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:07:00,407 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:07:00,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:07:00,407 INFO L153 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_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 [2023-11-06 21:07:00,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:07:00,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:07:00,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:07:00,758 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:07:00,760 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:07:00,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-11-06 21:07:03,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:07:04,166 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:07:04,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-11-06 21:07:04,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data/00458632e/a39cdfbe37214d05836f9b93083d6a4e/FLAG9d3ecd13c [2023-11-06 21:07:04,195 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data/00458632e/a39cdfbe37214d05836f9b93083d6a4e [2023-11-06 21:07:04,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:07:04,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:07:04,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:04,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:07:04,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:07:04,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:04" (1/1) ... [2023-11-06 21:07:04,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0a248c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:04, skipping insertion in model container [2023-11-06 21:07:04,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:04" (1/1) ... [2023-11-06 21:07:04,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:07:04,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:04,522 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 21:07:04,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@11fc0bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:04, skipping insertion in model container [2023-11-06 21:07:04,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:04,532 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 21:07:04,534 INFO L158 Benchmark]: Toolchain (without parser) took 330.11ms. Allocated memory is still 151.0MB. Free memory was 106.5MB in the beginning and 96.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:07:04,535 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:07:04,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.52ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 96.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:07:04,538 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.52ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 96.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 144]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:07:06,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:07:07,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:07:07,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:07:07,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:07:07,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:07:07,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:07:07,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:07:07,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:07:07,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:07:07,152 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:07:07,152 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:07:07,153 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:07:07,154 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:07:07,155 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:07:07,155 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:07:07,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:07:07,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:07:07,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:07:07,158 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:07:07,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:07:07,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:07:07,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:07:07,160 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:07:07,160 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:07:07,161 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:07:07,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:07:07,161 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:07:07,162 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:07:07,162 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:07:07,164 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:07:07,164 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:07:07,164 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:07:07,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:07:07,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:07:07,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:07:07,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:07:07,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:07:07,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:07:07,167 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:07:07,167 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:07:07,167 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:07:07,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:07:07,168 INFO L153 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_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 [2023-11-06 21:07:07,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:07:07,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:07:07,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:07:07,580 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:07:07,581 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:07:07,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-11-06 21:07:10,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:07:11,014 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:07:11,015 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-11-06 21:07:11,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data/615ab2730/0d3750096b7c48b197d982328d4ceea0/FLAG1b5eb6d6e [2023-11-06 21:07:11,044 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/data/615ab2730/0d3750096b7c48b197d982328d4ceea0 [2023-11-06 21:07:11,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:07:11,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:07:11,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:11,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:07:11,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:07:11,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4b2b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11, skipping insertion in model container [2023-11-06 21:07:11,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:07:11,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:11,404 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:07:11,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:07:11,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:11,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:07:11,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:11,559 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:07:11,560 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:07:11,568 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:07:11,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11 WrapperNode [2023-11-06 21:07:11,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:11,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:07:11,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:07:11,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:07:11,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,662 INFO L138 Inliner]: procedures = 28, calls = 56, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 262 [2023-11-06 21:07:11,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:07:11,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:07:11,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:07:11,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:07:11,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:07:11,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:07:11,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:07:11,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:07:11,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (1/1) ... [2023-11-06 21:07:11,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:07:11,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:07:11,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:07:11,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67771c2d-5730-4a86-85ef-482ae089a2a2/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:07:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:07:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:07:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:07:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:07:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:07:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:07:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:07:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:07:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:07:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:07:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:07:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:07:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:07:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:07:11,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:07:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:07:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:07:11,816 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:07:11,946 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:07:11,949 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:07:12,855 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:07:13,048 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:07:13,048 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 21:07:13,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:07:13 BoogieIcfgContainer [2023-11-06 21:07:13,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:07:13,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:07:13,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:07:13,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:07:13,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:07:11" (1/3) ... [2023-11-06 21:07:13,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6af9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:07:13, skipping insertion in model container [2023-11-06 21:07:13,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:11" (2/3) ... [2023-11-06 21:07:13,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6af9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:07:13, skipping insertion in model container [2023-11-06 21:07:13,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:07:13" (3/3) ... [2023-11-06 21:07:13,061 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2023-11-06 21:07:13,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:07:13,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 21:07:13,083 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:07:13,174 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 21:07:13,232 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 21:07:13,246 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 256 transitions, 533 flow [2023-11-06 21:07:13,249 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 256 transitions, 533 flow [2023-11-06 21:07:13,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 256 transitions, 533 flow [2023-11-06 21:07:13,347 INFO L124 PetriNetUnfolderBase]: 18/253 cut-off events. [2023-11-06 21:07:13,348 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:07:13,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 253 events. 18/253 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 256 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 199. Up to 3 conditions per place. [2023-11-06 21:07:13,359 INFO L119 LiptonReduction]: Number of co-enabled transitions 3380