./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:16,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:16,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:34:16,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:16,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:16,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:16,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:16,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:16,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:16,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:16,998 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:16,999 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:17,000 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:17,001 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:34:17,002 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:17,002 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:17,003 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:34:17,003 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:34:17,004 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:17,005 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:34:17,005 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:34:17,006 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:34:17,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:17,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:17,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:17,009 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:34:17,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:17,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:34:17,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:17,010 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:17,012 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:17,012 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:17,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:17,013 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:17,013 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:17,014 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:34:17,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:17,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:17,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:17,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:17,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:17,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:17,016 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:34:17,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:34:17,017 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:17,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:17,018 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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 [2023-11-06 20:34:17,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:17,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:17,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:17,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:17,399 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:17,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2023-11-06 20:34:20,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:20,695 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:20,696 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2023-11-06 20:34:20,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data/ed782c7dc/d661cf1494cd488aac1cda880add1d0e/FLAG26947858b [2023-11-06 20:34:20,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data/ed782c7dc/d661cf1494cd488aac1cda880add1d0e [2023-11-06 20:34:20,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:20,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:20,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:20,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:20,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:20,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:20" (1/1) ... [2023-11-06 20:34:20,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291524fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:20, skipping insertion in model container [2023-11-06 20:34:20,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:20" (1/1) ... [2023-11-06 20:34:20,837 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:21,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:21,044 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 20:34:21,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c443d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:21, skipping insertion in model container [2023-11-06 20:34:21,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:21,045 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:34:21,047 INFO L158 Benchmark]: Toolchain (without parser) took 280.44ms. Allocated memory is still 155.2MB. Free memory was 128.5MB in the beginning and 118.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:34:21,048 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:34:21,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.63ms. Allocated memory is still 155.2MB. Free memory was 128.5MB in the beginning and 118.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:34:21,050 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 155.2MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.63ms. Allocated memory is still 155.2MB. Free memory was 128.5MB in the beginning and 118.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 109]: 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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:23,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:23,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:34:23,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:23,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:23,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:23,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:23,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:23,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:23,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:23,632 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:23,633 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:23,633 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:23,635 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:23,636 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:23,636 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:23,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:23,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:23,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:23,639 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:34:23,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:23,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:34:23,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:23,641 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:23,642 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:23,642 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:23,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:23,643 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:23,643 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:34:23,644 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:34:23,645 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:23,646 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:34:23,646 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:23,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:23,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:34:23,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:23,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:23,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:23,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:23,649 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:34:23,649 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:34:23,650 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:23,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:23,650 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_bf01c92d-84d4-4f3e-a7ec-b63e97537791/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 [2023-11-06 20:34:24,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:24,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:24,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:24,090 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:24,091 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:24,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2023-11-06 20:34:27,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:27,657 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:27,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2023-11-06 20:34:27,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data/4e87f1e40/4ed7662dc87e4e93a5c5a57c355d5276/FLAG197b7a71d [2023-11-06 20:34:27,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/data/4e87f1e40/4ed7662dc87e4e93a5c5a57c355d5276 [2023-11-06 20:34:27,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:27,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:27,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:27,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:27,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:27,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:27" (1/1) ... [2023-11-06 20:34:27,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52211a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:27, skipping insertion in model container [2023-11-06 20:34:27,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:27" (1/1) ... [2023-11-06 20:34:27,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:27,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:28,011 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:34:28,016 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:28,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:28,042 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:34:28,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:28,081 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:28,081 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:28,088 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:34:28,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28 WrapperNode [2023-11-06 20:34:28,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:28,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:28,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:34:28,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:34:28,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,131 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-06 20:34:28,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:28,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:34:28,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:34:28,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:34:28,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:34:28,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:34:28,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:34:28,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:34:28,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (1/1) ... [2023-11-06 20:34:28,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:28,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:34:28,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:34:28,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf01c92d-84d4-4f3e-a7ec-b63e97537791/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:34:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:34:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:34:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:34:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:34:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:34:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:34:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:34:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:34:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 20:34:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 20:34:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:34:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:34:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:34:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:34:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:34:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:34:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:34:28,330 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:34:28,480 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:34:28,483 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:34:29,270 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:34:29,396 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:34:29,396 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 20:34:29,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:29 BoogieIcfgContainer [2023-11-06 20:34:29,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:34:29,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:34:29,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:34:29,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:34:29,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:34:27" (1/3) ... [2023-11-06 20:34:29,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b4c8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:29, skipping insertion in model container [2023-11-06 20:34:29,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:28" (2/3) ... [2023-11-06 20:34:29,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b4c8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:29, skipping insertion in model container [2023-11-06 20:34:29,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:29" (3/3) ... [2023-11-06 20:34:29,409 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array.wvr.c [2023-11-06 20:34:29,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:34:29,430 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 20:34:29,430 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:34:29,569 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 20:34:29,627 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:34:29,647 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 186 transitions, 393 flow [2023-11-06 20:34:29,651 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 186 transitions, 393 flow [2023-11-06 20:34:29,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 186 transitions, 393 flow [2023-11-06 20:34:29,772 INFO L124 PetriNetUnfolderBase]: 12/183 cut-off events. [2023-11-06 20:34:29,772 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 20:34:29,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 183 events. 12/183 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 228 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-11-06 20:34:29,784 INFO L119 LiptonReduction]: Number of co-enabled transitions 2970