./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:59:06,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:59:06,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:59:06,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:59:06,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:59:06,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:59:06,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:59:06,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:59:06,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:59:06,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:59:06,905 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:59:06,906 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:59:06,907 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:59:06,909 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:59:06,909 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:59:06,910 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:59:06,910 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:59:06,911 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:59:06,911 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:59:06,912 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:59:06,912 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:59:06,913 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:59:06,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:59:06,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:59:06,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:59:06,916 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:59:06,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:59:06,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:59:06,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:59:06,918 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:59:06,919 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:59:06,920 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:59:06,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:59:06,920 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:59:06,921 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:59:06,921 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:59:06,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:59:06,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:59:06,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:59:06,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:59:06,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:59:06,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:59:06,923 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:59:06,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:59:06,924 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:59:06,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:59:06,925 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_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2023-11-06 20:59:07,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:59:07,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:59:07,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:59:07,301 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:59:07,303 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:59:07,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/pthread/twostage_3.i [2023-11-06 20:59:10,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:59:10,817 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:59:10,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/sv-benchmarks/c/pthread/twostage_3.i [2023-11-06 20:59:10,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data/19f52c75e/8793aaa4b26e419bb54d915bd59523ba/FLAGb5022b928 [2023-11-06 20:59:10,870 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data/19f52c75e/8793aaa4b26e419bb54d915bd59523ba [2023-11-06 20:59:10,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:59:10,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:59:10,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:10,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:59:10,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:59:10,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:10" (1/1) ... [2023-11-06 20:59:10,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f03aa0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:10, skipping insertion in model container [2023-11-06 20:59:10,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:10" (1/1) ... [2023-11-06 20:59:10,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:59:11,754 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:11,755 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:11,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:11,770 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 20:59:11,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15f5dee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:11, skipping insertion in model container [2023-11-06 20:59:11,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:11,772 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:59:11,774 INFO L158 Benchmark]: Toolchain (without parser) took 894.89ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 107.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 20:59:11,775 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 172.0MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:59:11,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.41ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 107.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 20:59:11,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 172.0MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 892.41ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 107.3MB 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_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:59:14,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:59:14,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:59:14,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:59:14,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:59:14,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:59:14,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:59:14,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:59:14,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:59:14,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:59:14,375 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:59:14,376 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:59:14,376 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:59:14,378 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:59:14,378 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:59:14,379 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:59:14,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:59:14,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:59:14,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:59:14,381 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:59:14,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:59:14,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:59:14,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:59:14,383 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:59:14,383 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:59:14,383 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:59:14,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:59:14,384 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:59:14,385 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:59:14,385 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:59:14,386 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:59:14,387 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:59:14,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:59:14,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:59:14,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:59:14,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:59:14,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:59:14,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:59:14,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:59:14,389 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:59:14,389 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:59:14,390 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:59:14,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:59:14,390 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_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2023-11-06 20:59:14,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:59:14,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:59:14,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:59:14,853 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:59:14,853 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:59:14,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/pthread/twostage_3.i [2023-11-06 20:59:18,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:59:18,543 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:59:18,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/sv-benchmarks/c/pthread/twostage_3.i [2023-11-06 20:59:18,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data/cf009d2d8/7c2119c5b54d4ac68be34e479898aafd/FLAG61c3700ee [2023-11-06 20:59:18,598 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/data/cf009d2d8/7c2119c5b54d4ac68be34e479898aafd [2023-11-06 20:59:18,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:59:18,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:59:18,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:18,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:59:18,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:59:18,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:18" (1/1) ... [2023-11-06 20:59:18,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6a5d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:18, skipping insertion in model container [2023-11-06 20:59:18,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:18" (1/1) ... [2023-11-06 20:59:18,717 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:59:19,702 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:19,706 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:19,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:19,734 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:59:19,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:59:19,847 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:19,850 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:19,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:19,859 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:59:19,938 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:19,945 WARN L1577 CHandler]: Possible shadowing of function lock [2023-11-06 20:59:19,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:20,065 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:59:20,106 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:59:20,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20 WrapperNode [2023-11-06 20:59:20,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:20,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:59:20,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:59:20,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:59:20,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,215 INFO L138 Inliner]: procedures = 378, calls = 62, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 209 [2023-11-06 20:59:20,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:59:20,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:59:20,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:59:20,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:59:20,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:59:20,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:59:20,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:59:20,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:59:20,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (1/1) ... [2023-11-06 20:59:20,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:59:20,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:59:20,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:59:20,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_770415f7-4e13-4b3f-810a-d26b9e582316/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:59:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:59:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2023-11-06 20:59:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2023-11-06 20:59:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2023-11-06 20:59:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2023-11-06 20:59:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-06 20:59:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:59:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:59:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:59:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:59:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:59:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 20:59:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 20:59:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:59:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:59:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:59:20,388 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:59:20,643 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:59:20,645 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:59:21,475 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:59:21,489 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:59:21,490 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 20:59:21,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:59:21 BoogieIcfgContainer [2023-11-06 20:59:21,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:59:21,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:59:21,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:59:21,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:59:21,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:59:18" (1/3) ... [2023-11-06 20:59:21,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1e0372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:59:21, skipping insertion in model container [2023-11-06 20:59:21,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:20" (2/3) ... [2023-11-06 20:59:21,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1e0372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:59:21, skipping insertion in model container [2023-11-06 20:59:21,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:59:21" (3/3) ... [2023-11-06 20:59:21,501 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2023-11-06 20:59:21,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:59:21,522 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-06 20:59:21,522 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:59:21,626 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 20:59:21,681 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:59:21,700 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 269 transitions, 558 flow [2023-11-06 20:59:21,704 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 269 transitions, 558 flow [2023-11-06 20:59:21,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 269 transitions, 558 flow [2023-11-06 20:59:21,954 INFO L124 PetriNetUnfolderBase]: 43/522 cut-off events. [2023-11-06 20:59:21,955 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 20:59:21,966 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. [2023-11-06 20:59:21,978 INFO L119 LiptonReduction]: Number of co-enabled transitions 8236