./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:51,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:51,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:49:51,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:49:51,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:49:51,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:49:51,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:49:51,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:49:51,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:49:51,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:49:51,554 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:49:51,555 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:49:51,555 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:49:51,558 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:49:51,558 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:49:51,559 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:49:51,559 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:49:51,560 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:49:51,561 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:49:51,561 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:49:51,564 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:49:51,564 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:49:51,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:49:51,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:49:51,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:49:51,582 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:49:51,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:49:51,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:49:51,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:49:51,584 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:49:51,586 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:49:51,586 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:49:51,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:49:51,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:49:51,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:49:51,587 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:49:51,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:49:51,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:49:51,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:49:51,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:51,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:49:51,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:49:51,590 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:49:51,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:49:51,592 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:49:51,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:49:51,592 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_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 [2023-11-19 04:49:52,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:49:52,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:49:52,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:49:52,063 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:49:52,065 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:49:52,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-19 04:49:55,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:49:56,336 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:49:56,336 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-19 04:49:56,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data/ee38b2d5a/1faf4de310c74c0d8eeff8cd32b3fa27/FLAG531991371 [2023-11-19 04:49:56,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data/ee38b2d5a/1faf4de310c74c0d8eeff8cd32b3fa27 [2023-11-19 04:49:56,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:49:56,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:49:56,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:56,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:49:56,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:49:56,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:56" (1/1) ... [2023-11-19 04:49:56,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fcc59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:56, skipping insertion in model container [2023-11-19 04:49:56,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:56" (1/1) ... [2023-11-19 04:49:56,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:49:56,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:56,740 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 04:49:56,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43d92e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:56, skipping insertion in model container [2023-11-19 04:49:56,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:56,741 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:49:56,744 INFO L158 Benchmark]: Toolchain (without parser) took 373.74ms. Allocated memory is still 153.1MB. Free memory was 90.8MB in the beginning and 124.7MB in the end (delta: -33.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-11-19 04:49:56,744 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:49:56,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.61ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 124.7MB in the end (delta: -34.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-11-19 04:49:56,747 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.61ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 124.7MB in the end (delta: -34.0MB). Peak memory consumption was 14.3MB. 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_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:59,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:59,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:50:00,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:50:00,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:50:00,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:50:00,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:50:00,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:50:00,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:50:00,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:50:00,078 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:50:00,079 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:50:00,079 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:50:00,080 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:50:00,081 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:50:00,081 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:50:00,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:50:00,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:50:00,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:50:00,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:50:00,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:50:00,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:50:00,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:50:00,086 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:50:00,087 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:50:00,087 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:50:00,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:50:00,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:50:00,089 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:50:00,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:50:00,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:50:00,091 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:50:00,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:50:00,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:50:00,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:50:00,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:50:00,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:00,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:50:00,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:50:00,094 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:50:00,095 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:50:00,096 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:50:00,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:50:00,097 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_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 [2023-11-19 04:50:00,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:50:00,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:50:00,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:50:00,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:50:00,645 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:50:00,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-19 04:50:04,669 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:50:05,005 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:50:05,006 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-19 04:50:05,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data/fdaa1749f/0bb8bba4ef0c4e83a107737ffdc2fec7/FLAG537055241 [2023-11-19 04:50:05,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/data/fdaa1749f/0bb8bba4ef0c4e83a107737ffdc2fec7 [2023-11-19 04:50:05,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:50:05,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:50:05,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:05,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:50:05,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:50:05,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107b90a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05, skipping insertion in model container [2023-11-19 04:50:05,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,130 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:05,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:05,419 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:50:05,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:05,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:05,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:50:05,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:05,534 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:50:05,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05 WrapperNode [2023-11-19 04:50:05,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:05,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:05,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:50:05,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:50:05,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,636 INFO L138 Inliner]: procedures = 28, calls = 51, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 289 [2023-11-19 04:50:05,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:05,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:50:05,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:50:05,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:50:05,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:50:05,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:50:05,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:50:05,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:50:05,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (1/1) ... [2023-11-19 04:50:05,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:05,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:05,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:50:05,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2b2e25-2b95-4988-9a66-62ca54d83305/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:50:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:50:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:50:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:50:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:50:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:50:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 04:50:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 04:50:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 04:50:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 04:50:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:50:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:50:05,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:50:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 04:50:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:50:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:50:05,865 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:50:06,092 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:06,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:07,265 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:07,299 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:07,299 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:50:07,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:07 BoogieIcfgContainer [2023-11-19 04:50:07,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:07,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:07,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:07,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:07,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:50:05" (1/3) ... [2023-11-19 04:50:07,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7060f127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:07, skipping insertion in model container [2023-11-19 04:50:07,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:05" (2/3) ... [2023-11-19 04:50:07,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7060f127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:07, skipping insertion in model container [2023-11-19 04:50:07,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:07" (3/3) ... [2023-11-19 04:50:07,331 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2023-11-19 04:50:07,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:07,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-19 04:50:07,357 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:50:07,681 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 04:50:07,758 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:50:07,788 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 423 transitions, 860 flow [2023-11-19 04:50:07,791 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 423 transitions, 860 flow [2023-11-19 04:50:07,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 402 places, 423 transitions, 860 flow [2023-11-19 04:50:08,009 INFO L124 PetriNetUnfolderBase]: 28/421 cut-off events. [2023-11-19 04:50:08,012 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 04:50:08,022 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. [2023-11-19 04:50:08,034 INFO L119 LiptonReduction]: Number of co-enabled transitions 11748