./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-node-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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/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_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/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_b53e8157-dd83-4051-a771-7986dd787a6e/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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:49,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:49,717 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 05:15:49,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:49,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:49,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:49,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:49,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:49,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:49,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:49,766 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:49,767 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:49,767 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:49,768 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:15:49,769 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:49,770 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:49,771 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:15:49,772 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:15:49,772 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:49,773 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:15:49,774 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:15:49,775 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:15:49,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:15:49,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:15:49,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:49,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:15:49,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:15:49,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:15:49,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:49,782 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:15:49,782 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:15:49,783 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:15:49,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:49,784 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:15:49,785 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:15:49,786 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:15:49,786 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:49,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:49,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:49,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:49,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:49,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:49,794 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:15:49,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:15:49,795 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:49,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:49,796 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_b53e8157-dd83-4051-a771-7986dd787a6e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2023-11-19 05:15:50,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:50,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:50,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:50,271 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:50,273 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:50,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-19 05:15:54,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:54,586 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:54,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-19 05:15:54,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data/f72c15e7f/ee7c2d4b1071460ba720425487203c09/FLAGb0def5b80 [2023-11-19 05:15:54,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data/f72c15e7f/ee7c2d4b1071460ba720425487203c09 [2023-11-19 05:15:54,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:54,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:54,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:54,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:54,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:54,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:54" (1/1) ... [2023-11-19 05:15:54,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417e5204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:54, skipping insertion in model container [2023-11-19 05:15:54,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:54" (1/1) ... [2023-11-19 05:15:54,690 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:54,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:54,995 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 05:15:54,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@264e5a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:54, skipping insertion in model container [2023-11-19 05:15:54,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:54,997 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:15:55,000 INFO L158 Benchmark]: Toolchain (without parser) took 371.41ms. Allocated memory is still 148.9MB. Free memory was 106.1MB in the beginning and 95.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:15:55,001 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 102.8MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:55,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.71ms. Allocated memory is still 148.9MB. Free memory was 106.1MB in the beginning and 95.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:15:55,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26ms. Allocated memory is still 102.8MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.71ms. Allocated memory is still 148.9MB. Free memory was 106.1MB in the beginning and 95.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 118]: 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_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/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_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/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_b53e8157-dd83-4051-a771-7986dd787a6e/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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:58,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:58,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 05:15:58,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:58,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:58,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:58,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:58,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:58,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:58,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:58,360 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:58,361 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:58,362 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:58,362 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:58,363 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:58,363 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:58,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:15:58,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:15:58,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:58,366 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:15:58,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:15:58,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:15:58,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:58,368 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:15:58,369 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:15:58,369 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:15:58,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:58,370 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:15:58,371 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:15:58,372 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:15:58,372 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:15:58,373 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:15:58,373 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:58,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:58,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:15:58,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:58,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:58,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:58,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:58,375 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:15:58,376 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:58,376 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:58,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:58,377 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_b53e8157-dd83-4051-a771-7986dd787a6e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2023-11-19 05:15:58,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:58,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:58,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:58,891 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:58,892 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:58,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-19 05:16:02,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:16:03,294 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:16:03,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-19 05:16:03,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data/c70250631/588d9ee01d4947598e8d400391137adc/FLAG61daa2ced [2023-11-19 05:16:03,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/data/c70250631/588d9ee01d4947598e8d400391137adc [2023-11-19 05:16:03,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:16:03,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:16:03,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:03,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:16:03,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:16:03,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:03,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63773290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03, skipping insertion in model container [2023-11-19 05:16:03,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:03,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:03,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:03,810 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:16:03,816 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:03,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:03,860 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:16:03,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:03,963 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:16:03,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03 WrapperNode [2023-11-19 05:16:03,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:03,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:03,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:16:03,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:16:03,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:03,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,063 INFO L138 Inliner]: procedures = 29, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 423 [2023-11-19 05:16:04,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:04,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:16:04,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:16:04,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:16:04,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:16:04,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:16:04,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:16:04,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:16:04,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (1/1) ... [2023-11-19 05:16:04,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:04,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:04,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:16:04,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53e8157-dd83-4051-a771-7986dd787a6e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:16:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:16:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:16:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:16:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:16:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:16:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 05:16:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 05:16:04,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 05:16:04,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 05:16:04,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 05:16:04,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 05:16:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:16:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:16:04,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:16:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 05:16:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:16:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:16:04,321 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 05:16:04,512 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:16:04,515 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:16:06,218 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:06,243 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:06,244 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 05:16:06,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:06 BoogieIcfgContainer [2023-11-19 05:16:06,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:16:06,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:16:06,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:16:06,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:16:06,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:16:03" (1/3) ... [2023-11-19 05:16:06,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5311ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:06, skipping insertion in model container [2023-11-19 05:16:06,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:03" (2/3) ... [2023-11-19 05:16:06,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5311ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:06, skipping insertion in model container [2023-11-19 05:16:06,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:06" (3/3) ... [2023-11-19 05:16:06,265 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-11-19 05:16:06,322 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:16:06,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2023-11-19 05:16:06,323 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:16:06,577 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 05:16:06,654 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:16:06,686 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 585 places, 616 transitions, 1253 flow [2023-11-19 05:16:06,693 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 585 places, 616 transitions, 1253 flow [2023-11-19 05:16:06,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 585 places, 616 transitions, 1253 flow [2023-11-19 05:16:07,144 INFO L124 PetriNetUnfolderBase]: 41/613 cut-off events. [2023-11-19 05:16:07,144 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 05:16:07,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 613 events. 41/613 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1073 event pairs, 0 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 507. Up to 2 conditions per place. [2023-11-19 05:16:07,191 INFO L119 LiptonReduction]: Number of co-enabled transitions 33264