./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX --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 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:01:58,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:01:58,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 01:01:58,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:01:58,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:01:58,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:01:58,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:01:58,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:01:58,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:01:58,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:01:58,904 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:01:58,904 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:01:58,905 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:01:58,906 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:01:58,907 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:01:58,907 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:01:58,908 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:01:58,908 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:01:58,909 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:01:58,909 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:01:58,910 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:01:58,910 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:01:58,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 01:01:58,911 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 01:01:58,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:01:58,912 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:01:58,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:01:58,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:01:58,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:01:58,914 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 01:01:58,915 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 01:01:58,915 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 01:01:58,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:01:58,916 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:01:58,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:01:58,916 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:01:58,916 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:01:58,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:01:58,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:01:58,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:58,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:01:58,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:01:58,918 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:01:58,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:01:58,919 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:01:58,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:01:58,919 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_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 [2023-11-12 01:01:59,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:01:59,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:01:59,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:01:59,241 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:01:59,242 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:01:59,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-12 01:02:02,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:02,620 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:02,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-12 01:02:02,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data/f51d0bec2/b40309a4d9404a268ffd14abae6777eb/FLAGb3626bfc5 [2023-11-12 01:02:02,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data/f51d0bec2/b40309a4d9404a268ffd14abae6777eb [2023-11-12 01:02:02,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:02,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:02,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:02,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:02,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:02,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:02" (1/1) ... [2023-11-12 01:02:02,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a495a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:02, skipping insertion in model container [2023-11-12 01:02:02,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:02" (1/1) ... [2023-11-12 01:02:02,692 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:02,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:02,916 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-12 01:02:02,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1fe8b6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:02, skipping insertion in model container [2023-11-12 01:02:02,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:02,917 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 01:02:02,919 INFO L158 Benchmark]: Toolchain (without parser) took 263.35ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 122.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 01:02:02,920 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 178.3MB. Free memory was 153.6MB in the beginning and 153.5MB in the end (delta: 151.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:02:02,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.69ms. Allocated memory is still 178.3MB. Free memory was 132.8MB in the beginning and 122.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 01:02:02,922 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 178.3MB. Free memory was 153.6MB in the beginning and 153.5MB in the end (delta: 151.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.69ms. Allocated memory is still 178.3MB. Free memory was 132.8MB in the beginning and 122.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 102]: 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_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX --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 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:05,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:05,554 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 01:02:05,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:05,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:05,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:05,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:05,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:05,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:05,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:05,611 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:05,612 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:05,612 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:05,613 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:05,614 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:05,615 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:05,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 01:02:05,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 01:02:05,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:05,618 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:05,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:05,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:05,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:05,620 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 01:02:05,620 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 01:02:05,621 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 01:02:05,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:05,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:02:05,623 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 01:02:05,623 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 01:02:05,624 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:02:05,624 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:05,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:05,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:05,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 01:02:05,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:05,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:05,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:05,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:05,629 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 01:02:05,629 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 01:02:05,630 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:05,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:05,631 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_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 [2023-11-12 01:02:06,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:06,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:06,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:06,096 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:06,097 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:06,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-12 01:02:09,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:09,543 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:09,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-12 01:02:09,552 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data/b040d58c6/8dade728e65c48188bc010c27147b3b7/FLAGf513d3cd0 [2023-11-12 01:02:09,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/data/b040d58c6/8dade728e65c48188bc010c27147b3b7 [2023-11-12 01:02:09,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:09,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:09,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:09,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:09,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:09,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:09,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e20243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09, skipping insertion in model container [2023-11-12 01:02:09,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:09,607 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:09,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:09,862 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 01:02:09,867 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:09,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:09,902 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:09,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:09,982 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:09,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09 WrapperNode [2023-11-12 01:02:09,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:09,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:09,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:09,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:09,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,053 INFO L138 Inliner]: procedures = 28, calls = 51, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 289 [2023-11-12 01:02:10,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:10,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:10,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:10,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:10,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:10,151 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:10,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:10,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:10,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (1/1) ... [2023-11-12 01:02:10,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:10,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:10,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:10,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fd21dd-6441-47f7-98e5-c6a51aa0db07/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 01:02:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 01:02:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:02:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 01:02:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 01:02:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 01:02:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 01:02:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 01:02:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:02:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-12 01:02:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:02:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 01:02:10,250 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 01:02:10,399 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:10,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:11,300 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:11,312 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:11,312 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 01:02:11,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:11 BoogieIcfgContainer [2023-11-12 01:02:11,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:11,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:11,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:11,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:11,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:09" (1/3) ... [2023-11-12 01:02:11,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e895d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:11, skipping insertion in model container [2023-11-12 01:02:11,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:09" (2/3) ... [2023-11-12 01:02:11,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e895d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:11, skipping insertion in model container [2023-11-12 01:02:11,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:11" (3/3) ... [2023-11-12 01:02:11,324 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2023-11-12 01:02:11,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:11,344 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-12 01:02:11,344 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 01:02:11,519 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 01:02:11,560 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:02:11,579 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 423 transitions, 860 flow [2023-11-12 01:02:11,588 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 423 transitions, 860 flow [2023-11-12 01:02:11,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 402 places, 423 transitions, 860 flow [2023-11-12 01:02:11,812 INFO L124 PetriNetUnfolderBase]: 28/421 cut-off events. [2023-11-12 01:02:11,812 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 01:02:11,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 421 events. 28/421 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 592 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 320. Up to 2 conditions per place. [2023-11-12 01:02:11,849 INFO L119 LiptonReduction]: Number of co-enabled transitions 11748