./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX --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 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:16,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:16,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:08:16,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:16,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:16,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:16,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:16,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:16,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:16,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:16,322 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:16,323 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:16,324 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:16,327 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:08:16,327 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:16,328 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:16,328 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:08:16,329 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:08:16,330 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:16,330 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:08:16,331 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:08:16,332 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:08:16,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:08:16,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:08:16,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:16,336 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:08:16,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:16,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:08:16,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:16,338 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:08:16,340 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:08:16,340 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:08:16,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:16,341 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:08:16,341 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:08:16,342 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:08:16,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:16,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:16,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:16,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:16,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:16,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:16,345 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:08:16,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:08:16,346 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:16,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:16,347 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_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 [2023-11-12 00:08:16,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:16,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:16,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:16,729 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:16,731 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:16,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-12 00:08:20,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:20,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:20,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-12 00:08:20,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data/dab1197ba/32fa2fe10b204f7595b8a15b5de629fe/FLAG90c068422 [2023-11-12 00:08:20,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data/dab1197ba/32fa2fe10b204f7595b8a15b5de629fe [2023-11-12 00:08:20,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:20,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:20,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:20,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:20,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:20,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:20" (1/1) ... [2023-11-12 00:08:20,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ca5136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:20, skipping insertion in model container [2023-11-12 00:08:20,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:20" (1/1) ... [2023-11-12 00:08:20,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:20,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:20,830 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) [2023-11-12 00:08:20,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@33852785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:20, skipping insertion in model container [2023-11-12 00:08:20,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:20,832 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:08:20,834 INFO L158 Benchmark]: Toolchain (without parser) took 351.50ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 113.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:08:20,835 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:08:20,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.86ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 113.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:08:20,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.86ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 113.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 123]: 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_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX --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 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:23,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:23,854 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:08:23,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:23,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:23,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:23,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:23,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:23,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:23,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:23,939 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:23,940 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:23,940 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:23,942 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:23,942 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:23,943 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:23,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:08:23,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:08:23,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:23,946 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:08:23,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:23,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:08:23,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:23,948 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:08:23,948 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:08:23,948 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:08:23,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:23,949 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:08:23,949 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:08:23,950 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:08:23,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:08:23,952 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:08:23,952 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:23,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:23,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:08:23,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:23,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:23,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:23,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:23,954 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:08:23,954 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:08:23,955 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:23,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:23,955 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_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 [2023-11-12 00:08:24,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:24,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:24,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:24,384 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:24,384 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:24,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-12 00:08:27,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:27,975 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:27,976 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-12 00:08:27,986 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data/f98a3e4af/6c0c49a716254538b9df570fb3c55d84/FLAG240ec3746 [2023-11-12 00:08:28,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/data/f98a3e4af/6c0c49a716254538b9df570fb3c55d84 [2023-11-12 00:08:28,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:28,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:28,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:28,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:28,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:28,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c89617b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28, skipping insertion in model container [2023-11-12 00:08:28,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:28,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:28,469 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:08:28,489 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:28,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:28,583 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:28,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:28,663 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:28,663 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:28,673 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:28,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28 WrapperNode [2023-11-12 00:08:28,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:28,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:28,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:28,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:28,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,775 INFO L138 Inliner]: procedures = 28, calls = 58, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 235 [2023-11-12 00:08:28,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:28,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:28,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:28,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:28,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:28,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:28,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:28,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:28,851 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (1/1) ... [2023-11-12 00:08:28,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:28,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:28,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:28,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3844c-ab3c-403d-8115-c1ad260ddc11/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:08:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:08:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:08:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:08:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:08:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 00:08:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 00:08:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:08:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:08:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:08:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:08:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:08:28,984 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:08:29,175 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:29,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:08:30,155 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:08:30,339 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:08:30,339 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 00:08:30,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:30 BoogieIcfgContainer [2023-11-12 00:08:30,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:08:30,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:08:30,349 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:08:30,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:08:30,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:28" (1/3) ... [2023-11-12 00:08:30,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3758b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:30, skipping insertion in model container [2023-11-12 00:08:30,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:28" (2/3) ... [2023-11-12 00:08:30,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3758b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:30, skipping insertion in model container [2023-11-12 00:08:30,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:30" (3/3) ... [2023-11-12 00:08:30,359 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2023-11-12 00:08:30,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:08:30,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2023-11-12 00:08:30,380 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:08:30,577 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 00:08:30,631 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:08:30,654 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 369 transitions, 759 flow [2023-11-12 00:08:30,659 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 369 transitions, 759 flow [2023-11-12 00:08:30,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 369 transitions, 759 flow [2023-11-12 00:08:30,869 INFO L124 PetriNetUnfolderBase]: 27/366 cut-off events. [2023-11-12 00:08:30,870 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 00:08:30,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 366 events. 27/366 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 457 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 281. Up to 2 conditions per place. [2023-11-12 00:08:30,886 INFO L119 LiptonReduction]: Number of co-enabled transitions 5962