./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:26,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:26,528 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:30:26,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:26,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:26,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:26,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:26,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:26,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:30:26,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:30:26,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:26,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:26,594 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:26,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:26,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:30:26,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:26,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:30:26,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:26,599 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:30:26,600 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:30:26,600 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:30:26,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:30:26,601 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:30:26,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:30:26,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:30:26,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:26,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:26,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:26,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:30:26,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:26,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:26,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:30:26,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:30:26,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:30:26,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:30:26,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:30:26,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:30:26,609 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:30:26,609 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2023-11-12 02:30:26,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:26,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:26,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:26,980 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:26,981 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:26,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 02:30:30,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:30,403 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:30,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 02:30:30,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data/6c20bb8de/f56d2fc5d39a441a870ae8f14677cf6b/FLAG7802ae6b6 [2023-11-12 02:30:30,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data/6c20bb8de/f56d2fc5d39a441a870ae8f14677cf6b [2023-11-12 02:30:30,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:30,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:30,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:30,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:30,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:30,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:30" (1/1) ... [2023-11-12 02:30:30,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1599ce7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:30, skipping insertion in model container [2023-11-12 02:30:30,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:30" (1/1) ... [2023-11-12 02:30:30,581 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:31,388 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:31,392 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:31,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:31,411 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 02:30:31,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7f96fb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:31, skipping insertion in model container [2023-11-12 02:30:31,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:31,414 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:30:31,416 INFO L158 Benchmark]: Toolchain (without parser) took 948.78ms. Allocated memory is still 172.0MB. Free memory was 124.5MB in the beginning and 107.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 02:30:31,417 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory was 69.4MB in the beginning and 69.3MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:30:31,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 942.19ms. Allocated memory is still 172.0MB. Free memory was 124.0MB in the beginning and 107.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 02:30:31,420 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory was 69.4MB in the beginning and 69.3MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 942.19ms. Allocated memory is still 172.0MB. Free memory was 124.0MB in the beginning and 107.4MB in the end (delta: 16.6MB). 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:34,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:34,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:30:34,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:34,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:34,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:34,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:34,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:34,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:30:34,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:30:34,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:34,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:34,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:34,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:34,373 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:30:34,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:34,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:30:34,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:34,375 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:30:34,376 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:30:34,376 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:30:34,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:30:34,378 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:30:34,378 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:30:34,379 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:30:34,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:30:34,380 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:30:34,380 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:34,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:34,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:34,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:30:34,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:34,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:34,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:30:34,384 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:30:34,384 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:30:34,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:30:34,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:30:34,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:30:34,385 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:30:34,385 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:30:34,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2023-11-12 02:30:34,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:34,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:34,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:34,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:34,839 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:34,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 02:30:37,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:38,462 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:38,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/sv-benchmarks/c/pthread/twostage_3.i [2023-11-12 02:30:38,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data/8fa296e5b/b274c7700b3645cf9d8377c9367a11c1/FLAG454c36c9d [2023-11-12 02:30:38,516 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/data/8fa296e5b/b274c7700b3645cf9d8377c9367a11c1 [2023-11-12 02:30:38,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:38,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:38,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:38,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:38,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:38,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:38" (1/1) ... [2023-11-12 02:30:38,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67681806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:38, skipping insertion in model container [2023-11-12 02:30:38,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:38" (1/1) ... [2023-11-12 02:30:38,633 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:39,655 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:39,661 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:39,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:39,688 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:30:39,703 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:39,787 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:39,788 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:39,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:39,796 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:30:39,887 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:39,890 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-12 02:30:39,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:40,036 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:30:40,044 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:30:40,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40 WrapperNode [2023-11-12 02:30:40,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:40,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:40,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:30:40,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:30:40,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,139 INFO L138 Inliner]: procedures = 378, calls = 62, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 209 [2023-11-12 02:30:40,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:40,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:30:40,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:30:40,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:30:40,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:30:40,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:30:40,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:30:40,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:30:40,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (1/1) ... [2023-11-12 02:30:40,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:40,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:40,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:30:40,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4c723f-1991-4c04-87c1-b3b1d8e53a27/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:30:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:30:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2023-11-12 02:30:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2023-11-12 02:30:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2023-11-12 02:30:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 02:30:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:30:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:30:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:30:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:30:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:30:40,320 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 02:30:40,526 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:30:40,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:30:41,357 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:41,374 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:41,374 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:30:41,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:41 BoogieIcfgContainer [2023-11-12 02:30:41,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:41,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:30:41,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:30:41,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:30:41,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:30:38" (1/3) ... [2023-11-12 02:30:41,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd515e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:41, skipping insertion in model container [2023-11-12 02:30:41,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:40" (2/3) ... [2023-11-12 02:30:41,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd515e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:41, skipping insertion in model container [2023-11-12 02:30:41,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:41" (3/3) ... [2023-11-12 02:30:41,392 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2023-11-12 02:30:41,414 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:30:41,414 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-12 02:30:41,414 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:30:41,564 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 02:30:41,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 269 transitions, 558 flow [2023-11-12 02:30:41,910 INFO L124 PetriNetUnfolderBase]: 43/522 cut-off events. [2023-11-12 02:30:41,910 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:30:41,921 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 02:30:41,921 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 269 transitions, 558 flow [2023-11-12 02:30:41,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 269 transitions, 558 flow [2023-11-12 02:30:41,946 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:30:41,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 269 transitions, 558 flow [2023-11-12 02:30:41,968 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 269 transitions, 558 flow [2023-11-12 02:30:41,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 269 transitions, 558 flow [2023-11-12 02:30:42,073 INFO L124 PetriNetUnfolderBase]: 43/522 cut-off events. [2023-11-12 02:30:42,073 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:30:42,079 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 02:30:42,092 INFO L119 LiptonReduction]: Number of co-enabled transitions 8236