./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 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_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/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_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/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_300a361e-a5bd-45d2-b524-6c9336fd438c/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 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:05,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:05,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:34:05,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:05,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:05,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:05,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:05,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:05,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:05,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:05,928 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:05,929 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:05,930 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:05,930 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:34:05,931 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:05,931 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:05,932 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:34:05,933 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:34:05,933 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:05,934 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:34:05,935 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:34:05,935 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:34:05,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:05,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:05,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:05,938 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:34:05,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:05,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:34:05,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:05,940 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:05,941 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:05,941 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:05,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:05,942 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:05,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:05,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:34:05,943 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:05,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:05,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:05,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:05,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:05,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:05,945 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:34:05,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:34:05,946 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:05,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:05,946 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_300a361e-a5bd-45d2-b524-6c9336fd438c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f [2023-11-06 20:34:06,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:06,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:06,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:06,340 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:06,342 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:06,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-06 20:34:09,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:09,828 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:09,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-06 20:34:09,842 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data/a7a8e6f9b/7270759cffc642aeb93931c43730205b/FLAG381e7807d [2023-11-06 20:34:09,864 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data/a7a8e6f9b/7270759cffc642aeb93931c43730205b [2023-11-06 20:34:09,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:09,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:09,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:09,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:09,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:09,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:09" (1/1) ... [2023-11-06 20:34:09,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6103b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:09, skipping insertion in model container [2023-11-06 20:34:09,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:09" (1/1) ... [2023-11-06 20:34:09,928 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:10,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:10,247 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 20:34:10,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b25e85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:10, skipping insertion in model container [2023-11-06 20:34:10,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:10,248 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:34:10,250 INFO L158 Benchmark]: Toolchain (without parser) took 374.16ms. Allocated memory is still 127.9MB. Free memory was 89.9MB in the beginning and 97.4MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:34:10,251 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 127.9MB. Free memory was 98.6MB in the beginning and 98.5MB in the end (delta: 71.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:34:10,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.16ms. Allocated memory is still 127.9MB. Free memory was 89.9MB in the beginning and 97.4MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:34:10,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 127.9MB. Free memory was 98.6MB in the beginning and 98.5MB in the end (delta: 71.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.16ms. Allocated memory is still 127.9MB. Free memory was 89.9MB in the beginning and 97.4MB in the end (delta: -7.5MB). 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/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_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/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_300a361e-a5bd-45d2-b524-6c9336fd438c/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 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:12,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:12,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:34:12,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:12,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:13,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:13,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:13,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:13,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:13,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:13,066 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:13,067 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:13,067 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:13,069 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:13,070 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:13,070 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:13,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:13,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:13,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:13,074 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:34:13,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:13,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:34:13,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:13,076 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:13,077 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:13,077 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:13,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:13,078 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:13,079 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:34:13,079 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:34:13,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:13,081 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:34:13,081 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:13,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:13,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:34:13,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:13,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:13,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:13,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:13,084 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:34:13,085 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:34:13,085 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:13,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:13,086 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_300a361e-a5bd-45d2-b524-6c9336fd438c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f [2023-11-06 20:34:13,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:13,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:13,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:13,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:13,582 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:13,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-06 20:34:16,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:17,142 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:17,143 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-06 20:34:17,152 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data/86faef3f0/99acbbe9e2904731860e054d8af9e710/FLAG783b53e95 [2023-11-06 20:34:17,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/data/86faef3f0/99acbbe9e2904731860e054d8af9e710 [2023-11-06 20:34:17,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:17,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:17,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:17,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:17,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:17,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54dd8e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17, skipping insertion in model container [2023-11-06 20:34:17,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,211 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:17,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:17,549 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:34:17,558 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:17,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:17,625 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:34:17,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:17,700 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:34:17,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17 WrapperNode [2023-11-06 20:34:17,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:17,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:17,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:34:17,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:34:17,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,803 INFO L138 Inliner]: procedures = 28, calls = 51, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 287 [2023-11-06 20:34:17,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:17,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:34:17,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:34:17,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:34:17,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,902 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:34:17,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:34:17,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:34:17,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:34:17,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (1/1) ... [2023-11-06 20:34:17,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:17,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:34:17,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:34:17,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300a361e-a5bd-45d2-b524-6c9336fd438c/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:34:18,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:34:18,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 20:34:18,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:34:18,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:34:18,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:34:18,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:34:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:34:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:34:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:34:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:34:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:34:18,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:34:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 20:34:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:34:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:34:18,015 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 20:34:18,210 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:34:18,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:34:19,197 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:34:19,212 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:34:19,212 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 20:34:19,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:19 BoogieIcfgContainer [2023-11-06 20:34:19,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:34:19,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:34:19,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:34:19,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:34:19,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:34:17" (1/3) ... [2023-11-06 20:34:19,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcb9e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:19, skipping insertion in model container [2023-11-06 20:34:19,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:17" (2/3) ... [2023-11-06 20:34:19,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcb9e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:19, skipping insertion in model container [2023-11-06 20:34:19,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:19" (3/3) ... [2023-11-06 20:34:19,224 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2023-11-06 20:34:19,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:34:19,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-06 20:34:19,245 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:34:19,403 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 20:34:19,453 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:34:19,466 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 400 places, 421 transitions, 856 flow [2023-11-06 20:34:19,469 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 400 places, 421 transitions, 856 flow [2023-11-06 20:34:19,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 421 transitions, 856 flow [2023-11-06 20:34:19,641 INFO L124 PetriNetUnfolderBase]: 28/419 cut-off events. [2023-11-06 20:34:19,641 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 20:34:19,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 419 events. 28/419 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 598 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 319. Up to 2 conditions per place. [2023-11-06 20:34:19,659 INFO L119 LiptonReduction]: Number of co-enabled transitions 11440