./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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 b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:59:38,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:59:38,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:59:38,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:59:38,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:59:38,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:59:38,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:59:38,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:59:38,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:59:38,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:59:38,781 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:59:38,781 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:59:38,782 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:59:38,782 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:59:38,783 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:59:38,783 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:59:38,784 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:59:38,785 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:59:38,785 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:59:38,786 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:59:38,786 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:59:38,787 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:59:38,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:59:38,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:59:38,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:59:38,790 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:59:38,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:59:38,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:59:38,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:59:38,792 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:59:38,792 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:59:38,793 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:59:38,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:59:38,794 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:59:38,795 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:59:38,795 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:59:38,796 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:59:38,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:59:38,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:59:38,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:59:38,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:59:38,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:59:38,799 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:59:38,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:59:38,800 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:59:38,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:59:38,800 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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2023-11-06 20:59:39,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:59:39,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:59:39,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:59:39,111 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:59:39,112 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:59:39,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-11-06 20:59:42,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:59:42,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:59:42,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-11-06 20:59:42,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data/bf089168b/62dbd3b78c9048bebbd29f574b7127b9/FLAG628840286 [2023-11-06 20:59:42,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data/bf089168b/62dbd3b78c9048bebbd29f574b7127b9 [2023-11-06 20:59:42,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:59:42,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:59:42,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:42,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:59:42,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:59:42,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:42" (1/1) ... [2023-11-06 20:59:42,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed4d51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:42, skipping insertion in model container [2023-11-06 20:59:42,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:42" (1/1) ... [2023-11-06 20:59:42,500 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:59:42,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:42,783 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 20:59:42,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23cbd046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:42, skipping insertion in model container [2023-11-06 20:59:42,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:42,784 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:59:42,786 INFO L158 Benchmark]: Toolchain (without parser) took 330.92ms. Allocated memory is still 169.9MB. Free memory was 128.2MB in the beginning and 118.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 20:59:42,787 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:59:42,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.13ms. Allocated memory is still 169.9MB. Free memory was 127.8MB in the beginning and 118.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 20:59:42,790 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.13ms. Allocated memory is still 169.9MB. Free memory was 127.8MB in the beginning and 118.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 101]: 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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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 b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:59:45,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:59:45,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:59:45,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:59:45,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:59:45,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:59:45,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:59:45,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:59:45,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:59:45,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:59:45,498 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:59:45,498 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:59:45,499 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:59:45,500 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:59:45,501 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:59:45,501 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:59:45,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:59:45,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:59:45,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:59:45,503 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:59:45,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:59:45,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:59:45,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:59:45,505 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:59:45,506 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:59:45,506 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:59:45,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:59:45,507 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:59:45,508 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:59:45,508 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:59:45,509 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:59:45,510 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:59:45,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:59:45,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:59:45,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:59:45,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:59:45,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:59:45,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:59:45,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:59:45,513 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:59:45,513 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:59:45,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:59:45,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:59:45,514 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_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2023-11-06 20:59:45,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:59:45,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:59:45,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:59:45,999 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:59:45,999 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:59:46,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-11-06 20:59:49,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:59:49,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:59:49,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-11-06 20:59:49,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data/0ed478b8c/1fa5234433304dac93208a18b9fac3bd/FLAGeb7ee0a39 [2023-11-06 20:59:49,636 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/data/0ed478b8c/1fa5234433304dac93208a18b9fac3bd [2023-11-06 20:59:49,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:59:49,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:59:49,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:49,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:59:49,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:59:49,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:49" (1/1) ... [2023-11-06 20:59:49,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5f2547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:49, skipping insertion in model container [2023-11-06 20:59:49,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:59:49" (1/1) ... [2023-11-06 20:59:49,683 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:59:49,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:49,977 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:59:49,989 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:59:50,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:50,016 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:59:50,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:59:50,060 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:59:50,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50 WrapperNode [2023-11-06 20:59:50,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:59:50,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:59:50,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:59:50,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:59:50,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,137 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 199 [2023-11-06 20:59:50,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:59:50,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:59:50,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:59:50,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:59:50,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:59:50,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:59:50,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:59:50,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:59:50,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (1/1) ... [2023-11-06 20:59:50,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:59:50,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:59:50,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:59:50,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afcecd2-d5bb-4f69-99ff-e6b33ddfbe5f/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:59:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:59:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:59:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:59:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:59:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:59:50,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:59:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:59:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:59:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:59:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:59:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:59:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:59:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:59:50,302 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 20:59:50,466 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:59:50,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:59:51,293 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:59:51,320 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:59:51,321 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 20:59:51,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:59:51 BoogieIcfgContainer [2023-11-06 20:59:51,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:59:51,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:59:51,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:59:51,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:59:51,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:59:49" (1/3) ... [2023-11-06 20:59:51,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edcc954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:59:51, skipping insertion in model container [2023-11-06 20:59:51,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:59:50" (2/3) ... [2023-11-06 20:59:51,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edcc954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:59:51, skipping insertion in model container [2023-11-06 20:59:51,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:59:51" (3/3) ... [2023-11-06 20:59:51,339 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2023-11-06 20:59:51,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:59:51,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-06 20:59:51,356 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:59:51,540 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 20:59:51,594 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:59:51,619 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 289 transitions, 592 flow [2023-11-06 20:59:51,624 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 289 transitions, 592 flow [2023-11-06 20:59:51,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 289 transitions, 592 flow [2023-11-06 20:59:51,794 INFO L124 PetriNetUnfolderBase]: 21/287 cut-off events. [2023-11-06 20:59:51,794 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 20:59:51,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 287 events. 21/287 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 519 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 179. Up to 3 conditions per place. [2023-11-06 20:59:51,817 INFO L119 LiptonReduction]: Number of co-enabled transitions 9120