./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ --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 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:10:59,947 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:00,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:11:00,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:00,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:00,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:00,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:00,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:00,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:00,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:00,063 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:00,064 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:00,064 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:00,069 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:11:00,069 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:00,070 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:00,071 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:11:00,074 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:11:00,074 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:00,075 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:11:00,075 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:11:00,076 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:11:00,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:11:00,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:11:00,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:00,077 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:00,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:00,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:00,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:00,079 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:11:00,079 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:11:00,080 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:11:00,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:00,080 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:11:00,080 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:11:00,080 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:00,081 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:00,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:00,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:00,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:00,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:00,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:00,082 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:11:00,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:11:00,083 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:00,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:00,083 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_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 [2023-11-19 04:11:00,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:00,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:00,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:00,353 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:00,355 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:00,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-19 04:11:03,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:04,289 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:04,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-19 04:11:04,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data/347780a2f/6a0263f6c72e44ed9033b88e4f9ccaa4/FLAGf3e62c1ca [2023-11-19 04:11:04,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data/347780a2f/6a0263f6c72e44ed9033b88e4f9ccaa4 [2023-11-19 04:11:04,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:04,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:04,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:04,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:04,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:04,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:04" (1/1) ... [2023-11-19 04:11:04,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bfc40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:04, skipping insertion in model container [2023-11-19 04:11:04,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:04" (1/1) ... [2023-11-19 04:11:04,372 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:04,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:04,664 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) [2023-11-19 04:11:04,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d951071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:04, skipping insertion in model container [2023-11-19 04:11:04,665 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:04,666 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:11:04,668 INFO L158 Benchmark]: Toolchain (without parser) took 343.77ms. Allocated memory is still 157.3MB. Free memory was 125.1MB in the beginning and 114.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:11:04,669 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:11:04,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.20ms. Allocated memory is still 157.3MB. Free memory was 124.7MB in the beginning and 114.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:11:04,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.20ms. Allocated memory is still 157.3MB. Free memory was 124.7MB in the beginning and 114.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 138]: 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_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ --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 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:11:07,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:07,709 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:11:07,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:07,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:07,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:07,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:07,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:07,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:07,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:07,788 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:07,789 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:07,790 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:07,791 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:07,792 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:07,792 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:07,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:11:07,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:11:07,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:07,796 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:07,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:07,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:07,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:07,799 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:11:07,799 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:11:07,800 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:11:07,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:07,801 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:11:07,802 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:11:07,803 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:11:07,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:11:07,804 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:07,804 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:07,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:07,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:11:07,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:07,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:07,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:07,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:07,808 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:11:07,808 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:07,809 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:07,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:07,810 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_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 [2023-11-19 04:11:08,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:08,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:08,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:08,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:08,338 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:08,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-19 04:11:11,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:12,246 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:12,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-19 04:11:12,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data/f8b63dc12/06bc70c9b23a4ad589e38ed1f783df2b/FLAGb795e895a [2023-11-19 04:11:12,285 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/data/f8b63dc12/06bc70c9b23a4ad589e38ed1f783df2b [2023-11-19 04:11:12,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:12,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:12,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:12,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:12,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:12,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db3d275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12, skipping insertion in model container [2023-11-19 04:11:12,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:12,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:12,592 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:11:12,599 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:12,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:12,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:11:12,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:12,709 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:11:12,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12 WrapperNode [2023-11-19 04:11:12,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:12,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:12,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:11:12,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:11:12,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,830 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 180 [2023-11-19 04:11:12,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:12,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:11:12,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:11:12,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:11:12,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:11:12,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:11:12,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:11:12,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:11:12,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (1/1) ... [2023-11-19 04:11:12,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:12,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:12,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:11:12,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb97672-2c85-415d-ab44-e21c31603f44/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:11:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:11:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:11:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:11:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:11:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 04:11:13,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 04:11:13,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 04:11:13,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 04:11:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 04:11:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 04:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:11:13,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:11:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:11:13,017 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:11:13,176 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:11:13,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:11:14,308 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:11:14,334 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:11:14,334 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 04:11:14,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:14 BoogieIcfgContainer [2023-11-19 04:11:14,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:11:14,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:11:14,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:11:14,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:11:14,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:11:12" (1/3) ... [2023-11-19 04:11:14,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd9d6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:14, skipping insertion in model container [2023-11-19 04:11:14,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:12" (2/3) ... [2023-11-19 04:11:14,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd9d6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:14, skipping insertion in model container [2023-11-19 04:11:14,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:14" (3/3) ... [2023-11-19 04:11:14,358 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2023-11-19 04:11:14,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:11:14,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-19 04:11:14,383 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:11:14,610 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 04:11:14,677 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:11:14,706 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 364 transitions, 749 flow [2023-11-19 04:11:14,709 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 364 transitions, 749 flow [2023-11-19 04:11:14,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 364 transitions, 749 flow [2023-11-19 04:11:14,924 INFO L124 PetriNetUnfolderBase]: 29/361 cut-off events. [2023-11-19 04:11:14,924 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 04:11:14,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 361 events. 29/361 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 669 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 273. Up to 3 conditions per place. [2023-11-19 04:11:14,947 INFO L119 LiptonReduction]: Number of co-enabled transitions 13920