./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --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 c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:20,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:21,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:57:21,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:21,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:21,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:21,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:21,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:21,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:21,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:21,071 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:21,071 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:21,072 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:21,073 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:57:21,073 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:21,074 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:21,074 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:57:21,075 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:57:21,076 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:21,076 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:57:21,077 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:57:21,082 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:57:21,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:57:21,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:57:21,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:21,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:21,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:21,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:21,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:21,087 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:57:21,088 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:57:21,089 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:57:21,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:21,090 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:57:21,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:57:21,090 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:21,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:21,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:21,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:21,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:21,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:21,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:21,093 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:57:21,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:57:21,094 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:21,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:21,095 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_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2023-11-12 00:57:21,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:21,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:21,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:21,460 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:21,461 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:21,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 00:57:24,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:24,927 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:24,934 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 00:57:24,959 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data/f1385524f/f5d479f03a15471183e0cfc3c40482ff/FLAGe0686985e [2023-11-12 00:57:24,971 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data/f1385524f/f5d479f03a15471183e0cfc3c40482ff [2023-11-12 00:57:24,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:24,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:24,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:24,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:24,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:24,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ce6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24, skipping insertion in model container [2023-11-12 00:57:24,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:25,048 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:25,938 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:25,943 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:25,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:25,963 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) [2023-11-12 00:57:25,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75a273c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:25, skipping insertion in model container [2023-11-12 00:57:25,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:25,965 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:57:25,967 INFO L158 Benchmark]: Toolchain (without parser) took 990.63ms. Allocated memory is still 169.9MB. Free memory was 121.1MB in the beginning and 104.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:57:25,968 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 169.9MB. Free memory was 135.1MB in the beginning and 135.0MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:57:25,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 987.83ms. Allocated memory is still 169.9MB. Free memory was 120.8MB in the beginning and 104.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:57:25,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 169.9MB. Free memory was 135.1MB in the beginning and 135.0MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 987.83ms. Allocated memory is still 169.9MB. Free memory was 120.8MB in the beginning and 104.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1287]: 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_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --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 c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:28,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:28,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:57:28,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:28,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:28,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:28,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:28,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:28,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:28,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:28,687 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:28,688 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:28,688 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:28,690 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:28,691 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:28,691 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:28,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:57:28,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:57:28,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:28,695 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:28,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:28,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:28,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:28,697 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:57:28,697 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:57:28,698 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:57:28,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:28,699 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:57:28,699 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:57:28,700 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:57:28,701 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:57:28,702 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:28,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:28,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:28,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:57:28,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:28,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:28,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:28,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:28,705 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:57:28,705 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:57:28,706 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:28,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:28,706 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_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2023-11-12 00:57:29,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:29,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:29,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:29,176 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:29,177 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:29,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 00:57:32,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:32,950 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:32,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 00:57:32,973 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data/30a2c7517/10a56bea7e2946a49db91ca51cf57a74/FLAG3209233ef [2023-11-12 00:57:32,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/data/30a2c7517/10a56bea7e2946a49db91ca51cf57a74 [2023-11-12 00:57:32,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:32,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:32,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:32,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:33,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:33,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:32" (1/1) ... [2023-11-12 00:57:33,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48838445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:33, skipping insertion in model container [2023-11-12 00:57:33,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:32" (1/1) ... [2023-11-12 00:57:33,076 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:33,931 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:33,932 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:33,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:33,956 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:57:33,982 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:34,034 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:34,035 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:34,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:34,042 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:34,088 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:34,090 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:57:34,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:34,208 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:34,216 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:34,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34 WrapperNode [2023-11-12 00:57:34,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:34,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:34,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:34,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:34,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,286 INFO L138 Inliner]: procedures = 378, calls = 62, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 209 [2023-11-12 00:57:34,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:34,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:34,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:34,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:34,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:34,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:34,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:34,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:34,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:34,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:34,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:34,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cd800e5-8e1a-43cd-b8b9-dc59d73bc73a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:57:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2023-11-12 00:57:34,460 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2023-11-12 00:57:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2023-11-12 00:57:34,460 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2023-11-12 00:57:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-12 00:57:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:57:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:57:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:57:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:57:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:57:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 00:57:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:57:34,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:57:34,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:34,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:34,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:34,466 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:57:34,665 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:34,668 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:35,344 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:35,356 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:35,356 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:57:35,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:35 BoogieIcfgContainer [2023-11-12 00:57:35,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:35,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:35,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:35,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:35,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:32" (1/3) ... [2023-11-12 00:57:35,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fc1507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:35, skipping insertion in model container [2023-11-12 00:57:35,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34" (2/3) ... [2023-11-12 00:57:35,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fc1507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:35, skipping insertion in model container [2023-11-12 00:57:35,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:35" (3/3) ... [2023-11-12 00:57:35,395 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2023-11-12 00:57:35,415 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:35,416 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-12 00:57:35,416 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:57:35,555 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 00:57:35,613 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:57:35,643 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 269 transitions, 558 flow [2023-11-12 00:57:35,649 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 269 transitions, 558 flow [2023-11-12 00:57:35,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 269 transitions, 558 flow [2023-11-12 00:57:35,916 INFO L124 PetriNetUnfolderBase]: 43/522 cut-off events. [2023-11-12 00:57:35,917 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 00:57:35,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 522 events. 43/522 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2247 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 294. Up to 8 conditions per place. [2023-11-12 00:57:35,939 INFO L119 LiptonReduction]: Number of co-enabled transitions 8236