./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i --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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:05:18,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:05:18,236 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:05:18,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:05:18,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:05:18,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:05:18,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:05:18,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:05:18,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:05:18,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:05:18,289 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:05:18,290 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:05:18,290 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:05:18,292 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:05:18,292 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:05:18,292 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:05:18,293 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:05:18,293 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:05:18,294 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:05:18,294 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:05:18,294 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:05:18,295 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:05:18,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:05:18,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:05:18,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:05:18,299 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:05:18,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:05:18,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:05:18,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:05:18,301 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:05:18,302 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:05:18,302 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:05:18,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:05:18,303 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:05:18,303 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:05:18,303 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:05:18,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:05:18,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:05:18,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:05:18,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:18,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:05:18,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:05:18,305 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:05:18,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:05:18,306 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:05:18,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:05:18,306 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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 [2023-11-06 21:05:18,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:05:18,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:05:18,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:05:18,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:05:18,640 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:05:18,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2023-11-06 21:05:21,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:05:22,393 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:05:22,394 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2023-11-06 21:05:22,441 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data/5eb3767be/3e6d8b34b86a4c7c8bfaa2a9d710ad36/FLAG84d144423 [2023-11-06 21:05:22,462 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data/5eb3767be/3e6d8b34b86a4c7c8bfaa2a9d710ad36 [2023-11-06 21:05:22,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:05:22,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:05:22,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:22,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:05:22,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:05:22,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:22" (1/1) ... [2023-11-06 21:05:22,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cecc0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:22, skipping insertion in model container [2023-11-06 21:05:22,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:22" (1/1) ... [2023-11-06 21:05:22,549 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:05:23,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:24,025 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 21:05:24,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ea74aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:24, skipping insertion in model container [2023-11-06 21:05:24,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:24,027 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 21:05:24,029 INFO L158 Benchmark]: Toolchain (without parser) took 1561.99ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 82.1MB in the end (delta: 45.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-06 21:05:24,029 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:05:24,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1559.38ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 82.6MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-06 21:05:24,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1559.38ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 82.6MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2977]: 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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:05:26,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:05:26,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:05:26,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:05:26,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:05:26,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:05:26,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:05:26,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:05:26,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:05:26,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:05:26,750 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:05:26,751 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:05:26,751 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:05:26,753 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:05:26,754 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:05:26,754 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:05:26,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:05:26,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:05:26,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:05:26,757 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:05:26,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:05:26,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:05:26,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:05:26,759 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:05:26,760 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:05:26,760 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:05:26,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:05:26,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:05:26,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:05:26,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:05:26,763 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:05:26,764 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:05:26,764 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:05:26,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:05:26,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:05:26,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:05:26,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:26,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:05:26,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:05:26,767 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:05:26,767 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:05:26,768 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:05:26,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:05:26,768 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_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 [2023-11-06 21:05:27,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:05:27,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:05:27,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:05:27,226 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:05:27,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:05:27,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2023-11-06 21:05:30,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:05:30,857 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:05:30,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2023-11-06 21:05:30,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data/a2d17a841/71a3bb9b59614f18a93e0327fd80a1af/FLAG4dd7de1d1 [2023-11-06 21:05:30,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/data/a2d17a841/71a3bb9b59614f18a93e0327fd80a1af [2023-11-06 21:05:30,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:05:30,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:05:30,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:30,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:05:30,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:05:30,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:30" (1/1) ... [2023-11-06 21:05:30,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575c946c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:30, skipping insertion in model container [2023-11-06 21:05:30,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:30" (1/1) ... [2023-11-06 21:05:31,050 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:05:32,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:32,934 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:05:32,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:05:33,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:33,217 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:05:33,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:33,675 WARN L672 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:05:33,684 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:05:33,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33 WrapperNode [2023-11-06 21:05:33,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:33,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:05:33,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:05:33,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:05:33,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,863 INFO L138 Inliner]: procedures = 482, calls = 841, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985 [2023-11-06 21:05:33,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:05:33,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:05:33,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:05:33,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:05:33,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:33,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:05:33,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:05:33,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:05:33,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:05:33,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (1/1) ... [2023-11-06 21:05:34,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:34,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:05:34,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:05:34,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:05:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-06 21:05:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-06 21:05:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-06 21:05:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-06 21:05:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:05:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-06 21:05:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 21:05:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 21:05:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:05:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-06 21:05:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:05:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 21:05:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-06 21:05:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-06 21:05:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:05:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-06 21:05:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-06 21:05:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-06 21:05:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 21:05:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 21:05:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:05:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-06 21:05:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-06 21:05:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:05:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:05:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:05:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:05:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-06 21:05:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-06 21:05:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-06 21:05:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-06 21:05:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:05:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:05:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-06 21:05:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-06 21:05:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 21:05:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:05:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-06 21:05:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 21:05:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:05:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:05:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-06 21:05:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-06 21:05:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:05:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:05:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-06 21:05:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-06 21:05:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 21:05:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-06 21:05:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-06 21:05:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 21:05:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-06 21:05:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:05:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:05:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 21:05:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 21:05:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-06 21:05:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-06 21:05:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-06 21:05:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-06 21:05:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-06 21:05:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-06 21:05:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-06 21:05:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-06 21:05:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-06 21:05:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-06 21:05:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-06 21:05:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-06 21:05:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-06 21:05:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-06 21:05:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 21:05:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-06 21:05:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-06 21:05:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-06 21:05:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-06 21:05:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-06 21:05:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-06 21:05:34,512 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:05:34,515 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:05:40,482 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:05:40,502 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:05:40,503 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 21:05:40,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:05:40 BoogieIcfgContainer [2023-11-06 21:05:40,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:05:40,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:05:40,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:05:40,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:05:40,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:05:30" (1/3) ... [2023-11-06 21:05:40,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584e28c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:05:40, skipping insertion in model container [2023-11-06 21:05:40,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:33" (2/3) ... [2023-11-06 21:05:40,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584e28c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:05:40, skipping insertion in model container [2023-11-06 21:05:40,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:05:40" (3/3) ... [2023-11-06 21:05:40,521 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_pthread_mutex_unlock.i [2023-11-06 21:05:40,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:05:40,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2023-11-06 21:05:40,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:05:40,629 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17c9916a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 21:05:40,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2023-11-06 21:05:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-06 21:05:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 21:05:40,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:40,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:05:40,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-06 21:05:40,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:40,660 INFO L85 PathProgramCache]: Analyzing trace with hash 328182463, now seen corresponding path program 1 times [2023-11-06 21:05:40,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 21:05:40,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657372469] [2023-11-06 21:05:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:40,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:05:40,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 21:05:40,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:05:40,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 21:05:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:41,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:05:41,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:05:41,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:41,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:05:41,393 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 21:05:41,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657372469] [2023-11-06 21:05:41,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657372469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:41,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:41,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:05:41,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216551705] [2023-11-06 21:05:41,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:41,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:05:41,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 21:05:41,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:05:41,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:41,436 INFO L87 Difference]: Start difference. First operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:05:43,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:05:45,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:05:49,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:49,164 INFO L93 Difference]: Finished difference Result 1202 states and 1439 transitions. [2023-11-06 21:05:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:05:49,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 21:05:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:49,192 INFO L225 Difference]: With dead ends: 1202 [2023-11-06 21:05:49,193 INFO L226 Difference]: Without dead ends: 1198 [2023-11-06 21:05:49,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:05:49,198 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 685 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:49,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 2232 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1098 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2023-11-06 21:05:49,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2023-11-06 21:05:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 985. [2023-11-06 21:05:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 592 states have (on average 1.802364864864865) internal successors, (1067), 814 states have internal predecessors, (1067), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-06 21:05:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1343 transitions. [2023-11-06 21:05:49,332 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1343 transitions. Word has length 5 [2023-11-06 21:05:49,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:49,333 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1343 transitions. [2023-11-06 21:05:49,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:05:49,334 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1343 transitions. [2023-11-06 21:05:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 21:05:49,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:49,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:05:49,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:05:49,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:05:49,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-06 21:05:49,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:49,551 INFO L85 PathProgramCache]: Analyzing trace with hash 328182464, now seen corresponding path program 1 times [2023-11-06 21:05:49,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 21:05:49,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214610754] [2023-11-06 21:05:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:49,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:05:49,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 21:05:49,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:05:49,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6374cc-1f22-4f73-80f0-8eb0296de8f7/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 21:05:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:50,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:05:50,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:05:50,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:50,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:05:50,208 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 21:05:50,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214610754] [2023-11-06 21:05:50,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214610754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:50,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:50,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:05:50,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119591674] [2023-11-06 21:05:50,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:50,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:05:50,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 21:05:50,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:05:50,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:50,212 INFO L87 Difference]: Start difference. First operand 985 states and 1343 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)