./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-send-receive.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_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/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_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/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_5f79b53c-008e-4703-a239-f36880aa05a9/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 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:57:48,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:57:49,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:57:49,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:57:49,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:57:49,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:57:49,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:57:49,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:57:49,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:57:49,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:57:49,096 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:57:49,097 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:57:49,098 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:57:49,100 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:57:49,100 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:57:49,101 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:57:49,101 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:57:49,102 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:57:49,103 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:57:49,103 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:57:49,104 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:57:49,105 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:57:49,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:57:49,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:57:49,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:57:49,108 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:57:49,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:57:49,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:57:49,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:57:49,110 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:57:49,112 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:57:49,112 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:57:49,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:57:49,113 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:57:49,113 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:57:49,113 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:57:49,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:57:49,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:57:49,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:57:49,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:57:49,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:57:49,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:57:49,116 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:57:49,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:57:49,117 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:57:49,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:57:49,118 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_5f79b53c-008e-4703-a239-f36880aa05a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2023-11-06 20:57:49,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:57:49,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:57:49,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:57:49,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:57:49,498 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:57:49,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2023-11-06 20:57:52,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:57:52,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:57:52,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2023-11-06 20:57:52,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data/2666f871d/1878b1c278df496a83522f39447da1db/FLAG337b3c810 [2023-11-06 20:57:52,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data/2666f871d/1878b1c278df496a83522f39447da1db [2023-11-06 20:57:53,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:57:53,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:57:53,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:57:53,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:57:53,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:57:53,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:57:52" (1/1) ... [2023-11-06 20:57:53,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2e5864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:53, skipping insertion in model container [2023-11-06 20:57:53,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:57:52" (1/1) ... [2023-11-06 20:57:53,057 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:57:53,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:57:53,265 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 20:57:53,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31065aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:53, skipping insertion in model container [2023-11-06 20:57:53,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:57:53,266 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:57:53,270 INFO L158 Benchmark]: Toolchain (without parser) took 262.75ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 107.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:57:53,270 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:57:53,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.53ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 107.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:57:53,273 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.53ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 107.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 126]: 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_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/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_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/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_5f79b53c-008e-4703-a239-f36880aa05a9/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 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:57:55,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:57:55,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:57:55,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:57:55,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:57:56,025 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:57:56,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:57:56,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:57:56,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:57:56,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:57:56,035 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:57:56,035 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:57:56,036 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:57:56,038 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:57:56,038 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:57:56,039 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:57:56,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:57:56,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:57:56,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:57:56,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:57:56,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:57:56,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:57:56,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:57:56,044 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:57:56,044 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:57:56,045 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:57:56,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:57:56,046 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:57:56,046 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:57:56,047 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:57:56,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:57:56,049 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:57:56,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:57:56,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:57:56,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:57:56,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:57:56,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:57:56,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:57:56,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:57:56,053 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:57:56,053 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:57:56,053 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:57:56,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:57:56,054 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_5f79b53c-008e-4703-a239-f36880aa05a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2023-11-06 20:57:56,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:57:56,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:57:56,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:57:56,575 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:57:56,576 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:57:56,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2023-11-06 20:57:59,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:58:00,196 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:58:00,196 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2023-11-06 20:58:00,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data/27a751e12/2a4b73a8d88b440f9414546d96d28c57/FLAGebad8aa76 [2023-11-06 20:58:00,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/data/27a751e12/2a4b73a8d88b440f9414546d96d28c57 [2023-11-06 20:58:00,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:58:00,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:58:00,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:58:00,222 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:58:00,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:58:00,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61cd6eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00, skipping insertion in model container [2023-11-06 20:58:00,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,259 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:58:00,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:58:00,463 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:58:00,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:58:00,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:58:00,525 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:58:00,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:58:00,596 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:58:00,597 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:58:00,604 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:58:00,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00 WrapperNode [2023-11-06 20:58:00,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:58:00,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:58:00,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:58:00,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:58:00,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,682 INFO L138 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 163 [2023-11-06 20:58:00,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:58:00,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:58:00,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:58:00,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:58:00,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:58:00,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:58:00,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:58:00,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:58:00,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (1/1) ... [2023-11-06 20:58:00,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:58:00,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:58:00,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:58:00,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f79b53c-008e-4703-a239-f36880aa05a9/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:58:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:58:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:58:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:58:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:58:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:58:00,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:58:00,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:58:00,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:58:00,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 20:58:00,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 20:58:00,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:58:00,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:58:00,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:58:00,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:58:00,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:58:00,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:58:00,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:58:00,872 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 20:58:01,090 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:58:01,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:58:01,676 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:58:01,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:58:01,884 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 20:58:01,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:58:01 BoogieIcfgContainer [2023-11-06 20:58:01,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:58:01,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:58:01,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:58:01,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:58:01,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:58:00" (1/3) ... [2023-11-06 20:58:01,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b34315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:58:01, skipping insertion in model container [2023-11-06 20:58:01,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:58:00" (2/3) ... [2023-11-06 20:58:01,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b34315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:58:01, skipping insertion in model container [2023-11-06 20:58:01,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:58:01" (3/3) ... [2023-11-06 20:58:01,899 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2023-11-06 20:58:01,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:58:01,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-06 20:58:01,920 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:58:02,062 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 20:58:02,101 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:58:02,116 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 166 transitions, 353 flow [2023-11-06 20:58:02,119 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 166 transitions, 353 flow [2023-11-06 20:58:02,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 166 transitions, 353 flow [2023-11-06 20:58:02,193 INFO L124 PetriNetUnfolderBase]: 10/163 cut-off events. [2023-11-06 20:58:02,193 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 20:58:02,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 163 events. 10/163 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 171 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-11-06 20:58:02,203 INFO L119 LiptonReduction]: Number of co-enabled transitions 2120