./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:01:30,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:01:30,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:01:30,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:01:30,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:01:30,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:01:30,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:01:30,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:01:30,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:01:30,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:01:30,972 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:01:30,973 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:01:30,974 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:01:30,975 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:01:30,976 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:01:30,976 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:01:30,977 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:01:30,977 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:01:30,977 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:01:30,978 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:01:30,978 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:01:30,979 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:01:30,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:01:30,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:01:30,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:01:30,981 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:01:30,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:01:30,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:01:30,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:01:30,983 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:01:30,984 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:01:30,984 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:01:30,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:01:30,985 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:01:30,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:01:30,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:01:30,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:01:30,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:01:30,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:01:30,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:01:30,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:01:30,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:01:30,987 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:01:30,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:01:30,988 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:01:30,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:01:30,989 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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2023-11-06 21:01:31,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:01:31,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:01:31,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:01:31,318 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:01:31,320 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:01:31,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2023-11-06 21:01:34,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:01:34,604 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:01:34,604 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2023-11-06 21:01:34,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data/b0ea3441a/091ced8c373d45fca36765f2192b3d01/FLAG29daa77d8 [2023-11-06 21:01:34,648 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data/b0ea3441a/091ced8c373d45fca36765f2192b3d01 [2023-11-06 21:01:34,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:01:34,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:01:34,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:34,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:01:34,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:01:34,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:34" (1/1) ... [2023-11-06 21:01:34,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70bae43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:34, skipping insertion in model container [2023-11-06 21:01:34,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:34" (1/1) ... [2023-11-06 21:01:34,713 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:01:34,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:34,997 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 21:01:34,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c07cf7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:34, skipping insertion in model container [2023-11-06 21:01:34,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:34,999 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 21:01:35,002 INFO L158 Benchmark]: Toolchain (without parser) took 343.79ms. Allocated memory is still 140.5MB. Free memory was 95.1MB in the beginning and 84.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:01:35,002 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:01:35,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.38ms. Allocated memory is still 140.5MB. Free memory was 95.1MB in the beginning and 84.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:01:35,006 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.38ms. Allocated memory is still 140.5MB. Free memory was 95.1MB in the beginning and 84.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 153]: 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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:01:37,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:01:37,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:01:37,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:01:37,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:01:37,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:01:37,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:01:37,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:01:37,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:01:37,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:01:37,597 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:01:37,597 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:01:37,598 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:01:37,600 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:01:37,600 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:01:37,601 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:01:37,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:01:37,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:01:37,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:01:37,604 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:01:37,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:01:37,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:01:37,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:01:37,606 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:01:37,607 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:01:37,607 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:01:37,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:01:37,608 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:01:37,609 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:01:37,609 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:01:37,611 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:01:37,611 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:01:37,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:01:37,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:01:37,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:01:37,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:01:37,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:01:37,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:01:37,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:01:37,614 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:01:37,615 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:01:37,615 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:01:37,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:01:37,616 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_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2023-11-06 21:01:38,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:01:38,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:01:38,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:01:38,120 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:01:38,120 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:01:38,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2023-11-06 21:01:41,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:01:41,571 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:01:41,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2023-11-06 21:01:41,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data/a852c7698/31f205d766694dffa375c2bc21c5afce/FLAG79575016e [2023-11-06 21:01:41,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/data/a852c7698/31f205d766694dffa375c2bc21c5afce [2023-11-06 21:01:41,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:01:41,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:01:41,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:41,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:01:41,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:01:41,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:41" (1/1) ... [2023-11-06 21:01:41,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d37f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:41, skipping insertion in model container [2023-11-06 21:01:41,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:41" (1/1) ... [2023-11-06 21:01:41,666 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:01:41,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:41,966 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:01:41,978 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:01:42,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:42,029 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:01:42,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:42,106 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:01:42,108 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:01:42,116 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:01:42,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42 WrapperNode [2023-11-06 21:01:42,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:42,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:01:42,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:01:42,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:01:42,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,204 INFO L138 Inliner]: procedures = 29, calls = 74, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 247 [2023-11-06 21:01:42,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:01:42,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:01:42,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:01:42,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:01:42,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:01:42,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:01:42,297 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:01:42,297 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:01:42,298 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (1/1) ... [2023-11-06 21:01:42,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:01:42,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:01:42,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:01:42,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b19c0b-582c-443e-b5e9-e5cc57e5e00f/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:01:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:01:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:01:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:01:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:01:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:01:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:01:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:01:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:01:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:01:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:01:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-06 21:01:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-06 21:01:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:01:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:01:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:01:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:01:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:01:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:01:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:01:42,404 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 21:01:42,578 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:01:42,580 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:01:43,253 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:01:43,495 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:01:43,495 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 21:01:43,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:01:43 BoogieIcfgContainer [2023-11-06 21:01:43,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:01:43,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:01:43,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:01:43,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:01:43,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:01:41" (1/3) ... [2023-11-06 21:01:43,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da96acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:01:43, skipping insertion in model container [2023-11-06 21:01:43,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:42" (2/3) ... [2023-11-06 21:01:43,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da96acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:01:43, skipping insertion in model container [2023-11-06 21:01:43,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:01:43" (3/3) ... [2023-11-06 21:01:43,507 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2023-11-06 21:01:43,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:01:43,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-06 21:01:43,527 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:01:43,662 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2023-11-06 21:01:43,716 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 21:01:43,742 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 238 transitions, 516 flow [2023-11-06 21:01:43,747 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 238 transitions, 516 flow [2023-11-06 21:01:43,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 238 transitions, 516 flow [2023-11-06 21:01:43,844 INFO L124 PetriNetUnfolderBase]: 14/221 cut-off events. [2023-11-06 21:01:43,845 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 21:01:43,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 221 events. 14/221 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 287 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 180. Up to 3 conditions per place. [2023-11-06 21:01:43,857 INFO L119 LiptonReduction]: Number of co-enabled transitions 4644