./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/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_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/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_380423d8-489f-4d45-9a48-f806d99db424/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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:13:06,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:13:06,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:13:06,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:13:06,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:13:06,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:13:06,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:13:06,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:13:06,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:13:06,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:13:06,446 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:13:06,446 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:13:06,447 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:13:06,448 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:13:06,448 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:13:06,449 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:13:06,449 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:13:06,450 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:13:06,451 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:13:06,452 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:13:06,452 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:13:06,453 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:13:06,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:13:06,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:13:06,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:13:06,456 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:13:06,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:13:06,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:13:06,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:13:06,458 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:13:06,458 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:13:06,459 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:13:06,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:13:06,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:13:06,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:13:06,460 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:13:06,461 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:13:06,461 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:13:06,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:13:06,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:06,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:13:06,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:13:06,463 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:13:06,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:13:06,464 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:13:06,464 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:13:06,464 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_380423d8-489f-4d45-9a48-f806d99db424/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-19 04:13:06,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:13:06,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:13:06,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:13:06,769 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:13:06,770 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:13:06,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-19 04:13:09,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:13:10,247 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:13:10,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-19 04:13:10,258 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data/00774a379/2e2783e8babb470aab52a6d9c7f7196b/FLAG0c07e45b4 [2023-11-19 04:13:10,274 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data/00774a379/2e2783e8babb470aab52a6d9c7f7196b [2023-11-19 04:13:10,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:13:10,279 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:13:10,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:10,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:13:10,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:13:10,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eaf28d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10, skipping insertion in model container [2023-11-19 04:13:10,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,339 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:13:10,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:10,596 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 04:13:10,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f7b0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10, skipping insertion in model container [2023-11-19 04:13:10,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:10,597 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:13:10,599 INFO L158 Benchmark]: Toolchain (without parser) took 319.42ms. Allocated memory is still 195.0MB. Free memory was 161.8MB in the beginning and 150.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:13:10,600 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:13:10,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.60ms. Allocated memory is still 195.0MB. Free memory was 161.8MB in the beginning and 150.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:13:10,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.60ms. Allocated memory is still 195.0MB. Free memory was 161.8MB in the beginning and 150.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 195]: 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_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/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_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/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_380423d8-489f-4d45-9a48-f806d99db424/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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:13:13,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:13:13,331 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:13:13,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:13:13,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:13:13,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:13:13,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:13:13,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:13:13,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:13:13,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:13:13,403 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:13:13,403 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:13:13,404 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:13:13,406 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:13:13,406 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:13:13,407 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:13:13,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:13:13,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:13:13,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:13:13,411 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:13:13,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:13:13,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:13:13,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:13:13,413 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:13:13,414 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:13:13,414 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:13:13,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:13:13,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:13:13,415 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:13:13,416 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:13:13,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:13:13,418 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:13:13,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:13:13,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:13:13,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:13:13,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:13:13,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:13,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:13:13,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:13:13,421 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:13:13,421 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:13:13,421 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:13:13,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:13:13,422 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_380423d8-489f-4d45-9a48-f806d99db424/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-19 04:13:13,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:13:13,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:13:13,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:13:13,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:13:13,904 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:13:13,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-19 04:13:17,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:13:17,347 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:13:17,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-19 04:13:17,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data/d525286c6/db5839e9d3e04ecd8ebad02cfb7c2d1a/FLAG303b9eeac [2023-11-19 04:13:17,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/data/d525286c6/db5839e9d3e04ecd8ebad02cfb7c2d1a [2023-11-19 04:13:17,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:13:17,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:13:17,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:17,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:13:17,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:13:17,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310fb9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17, skipping insertion in model container [2023-11-19 04:13:17,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:13:17,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:17,666 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:13:17,673 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:13:17,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:17,726 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:13:17,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:17,780 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:13:17,780 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:13:17,789 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:13:17,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17 WrapperNode [2023-11-19 04:13:17,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:17,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:13:17,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:13:17,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:13:17,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,868 INFO L138 Inliner]: procedures = 28, calls = 94, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 469 [2023-11-19 04:13:17,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:13:17,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:13:17,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:13:17,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:13:17,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:13:17,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:13:17,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:13:17,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:13:17,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (1/1) ... [2023-11-19 04:13:17,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:17,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:13:18,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380423d8-489f-4d45-9a48-f806d99db424/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:13:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:13:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:13:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:13:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:13:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 04:13:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 04:13:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 04:13:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 04:13:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 04:13:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 04:13:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 04:13:18,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 04:13:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:13:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:13:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:13:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:13:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:13:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:13:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:13:18,045 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 04:13:18,196 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:13:18,198 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:13:19,455 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:13:19,903 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:13:19,903 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 04:13:19,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:19 BoogieIcfgContainer [2023-11-19 04:13:19,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:13:19,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:13:19,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:13:19,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:13:19,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:13:17" (1/3) ... [2023-11-19 04:13:19,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403e3527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:19, skipping insertion in model container [2023-11-19 04:13:19,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:17" (2/3) ... [2023-11-19 04:13:19,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403e3527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:19, skipping insertion in model container [2023-11-19 04:13:19,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:19" (3/3) ... [2023-11-19 04:13:19,918 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2023-11-19 04:13:19,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:13:19,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-19 04:13:19,940 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:13:20,130 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 04:13:20,174 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:13:20,189 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 379 places, 397 transitions, 822 flow [2023-11-19 04:13:20,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 379 places, 397 transitions, 822 flow [2023-11-19 04:13:20,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 397 transitions, 822 flow [2023-11-19 04:13:20,365 INFO L124 PetriNetUnfolderBase]: 31/393 cut-off events. [2023-11-19 04:13:20,366 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 04:13:20,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 393 events. 31/393 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 433 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 332. Up to 3 conditions per place. [2023-11-19 04:13:20,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 8364