./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/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_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/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_97e98f33-507d-4267-9751-dfa1d451017c/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 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:51:48,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:51:48,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:51:48,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:51:48,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:51:48,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:51:48,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:51:48,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:51:48,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:51:48,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:51:48,417 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:51:48,417 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:51:48,418 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:51:48,418 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:51:48,419 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:51:48,419 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:51:48,420 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:51:48,420 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:51:48,421 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:51:48,421 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:51:48,422 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:51:48,422 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:51:48,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:51:48,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:51:48,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:51:48,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:51:48,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:51:48,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:51:48,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:51:48,427 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:51:48,428 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:51:48,428 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:51:48,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:51:48,429 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:51:48,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:51:48,430 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:51:48,430 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:51:48,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:51:48,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:51:48,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:48,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:51:48,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:51:48,432 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:51:48,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:51:48,433 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:51:48,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:51:48,434 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_97e98f33-507d-4267-9751-dfa1d451017c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2023-11-12 00:51:48,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:51:48,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:51:48,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:51:48,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:51:48,787 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:51:48,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-12 00:51:51,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:52,306 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:52,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-12 00:51:52,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data/b7bf6c38c/1ce0ebb841104955aecfcb961ea00af7/FLAG1433596da [2023-11-12 00:51:52,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data/b7bf6c38c/1ce0ebb841104955aecfcb961ea00af7 [2023-11-12 00:51:52,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:52,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:52,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:52,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:52,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:52,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:52" (1/1) ... [2023-11-12 00:51:52,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4a2ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:52, skipping insertion in model container [2023-11-12 00:51:52,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:52" (1/1) ... [2023-11-12 00:51:52,428 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:51:53,167 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:51:53,169 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:51:53,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:53,184 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 00:51:53,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f8fbecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:53, skipping insertion in model container [2023-11-12 00:51:53,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:53,185 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:51:53,187 INFO L158 Benchmark]: Toolchain (without parser) took 832.40ms. Allocated memory is still 125.8MB. Free memory was 78.9MB in the beginning and 61.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:51:53,187 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:51:53,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.68ms. Allocated memory is still 125.8MB. Free memory was 78.9MB in the beginning and 62.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:51:53,189 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.68ms. Allocated memory is still 125.8MB. Free memory was 78.9MB in the beginning and 62.2MB 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: 1284]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/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_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/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_97e98f33-507d-4267-9751-dfa1d451017c/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 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:51:55,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:51:55,685 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:51:55,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:51:55,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:51:55,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:51:55,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:51:55,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:51:55,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:51:55,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:51:55,746 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:51:55,747 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:51:55,747 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:51:55,748 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:51:55,748 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:51:55,749 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:51:55,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:51:55,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:51:55,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:51:55,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:51:55,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:51:55,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:51:55,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:51:55,754 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:51:55,754 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:51:55,755 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:51:55,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:51:55,756 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:51:55,756 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:51:55,757 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:51:55,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:51:55,758 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:51:55,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:51:55,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:51:55,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:51:55,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:51:55,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:55,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:51:55,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:51:55,761 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:51:55,762 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:51:55,762 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:51:55,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:51:55,763 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_97e98f33-507d-4267-9751-dfa1d451017c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2023-11-12 00:51:56,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:51:56,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:51:56,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:51:56,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:51:56,170 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:51:56,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-12 00:51:59,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:59,749 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:59,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-12 00:51:59,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data/99f4fd744/e9c74a3f8fc74d7bae09e1990c786e54/FLAG2cd7bceaa [2023-11-12 00:51:59,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/data/99f4fd744/e9c74a3f8fc74d7bae09e1990c786e54 [2023-11-12 00:51:59,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:59,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:59,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:59,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:59,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:59,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:59" (1/1) ... [2023-11-12 00:51:59,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9c7516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:59, skipping insertion in model container [2023-11-12 00:51:59,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:59" (1/1) ... [2023-11-12 00:51:59,897 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:00,867 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:52:00,871 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:52:00,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:00,894 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:52:00,910 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:00,970 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:52:00,971 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:52:00,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:00,978 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:01,031 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:52:01,033 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 00:52:01,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:01,131 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:01,139 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:01,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01 WrapperNode [2023-11-12 00:52:01,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:01,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:01,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:01,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:01,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,228 INFO L138 Inliner]: procedures = 378, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 196 [2023-11-12 00:52:01,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:01,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:01,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:01,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:01,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:01,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:01,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:01,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:01,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (1/1) ... [2023-11-12 00:52:01,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:01,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:01,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:01,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e98f33-507d-4267-9751-dfa1d451017c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:52:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2023-11-12 00:52:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2023-11-12 00:52:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2023-11-12 00:52:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2023-11-12 00:52:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-12 00:52:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:52:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:52:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:52:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:52:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:52:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 00:52:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:52:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:52:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:01,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:01,418 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 00:52:01,648 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:01,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:02,313 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:02,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:02,322 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:52:02,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:02 BoogieIcfgContainer [2023-11-12 00:52:02,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:02,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:02,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:02,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:02,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:51:59" (1/3) ... [2023-11-12 00:52:02,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4a9e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:02, skipping insertion in model container [2023-11-12 00:52:02,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:01" (2/3) ... [2023-11-12 00:52:02,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4a9e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:02, skipping insertion in model container [2023-11-12 00:52:02,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:02" (3/3) ... [2023-11-12 00:52:02,334 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3-2.i [2023-11-12 00:52:02,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:02,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-12 00:52:02,354 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:52:02,478 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 00:52:02,515 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:52:02,534 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 250 transitions, 520 flow [2023-11-12 00:52:02,544 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 250 transitions, 520 flow [2023-11-12 00:52:02,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 250 transitions, 520 flow [2023-11-12 00:52:02,784 INFO L124 PetriNetUnfolderBase]: 41/503 cut-off events. [2023-11-12 00:52:02,784 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 00:52:02,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 503 events. 41/503 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2205 event pairs, 0 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 275. Up to 8 conditions per place. [2023-11-12 00:52:02,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 8236