./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:30:11,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:30:12,041 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:30:12,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:30:12,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:30:12,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:30:12,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:30:12,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:30:12,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:30:12,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:30:12,099 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:30:12,100 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:30:12,101 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:30:12,103 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:30:12,103 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:30:12,104 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:30:12,105 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:30:12,106 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:30:12,106 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:30:12,107 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:30:12,107 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:30:12,108 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:30:12,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:30:12,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:30:12,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:30:12,111 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:30:12,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:30:12,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:30:12,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:30:12,113 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:30:12,114 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:30:12,115 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:30:12,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:30:12,115 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:30:12,116 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:30:12,116 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:30:12,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:30:12,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:30:12,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:30:12,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:30:12,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:30:12,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:30:12,119 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:30:12,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:30:12,120 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:30:12,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:30:12,120 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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c [2023-11-06 20:30:12,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:30:12,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:30:12,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:30:12,481 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:30:12,482 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:30:12,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2023-11-06 20:30:15,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:30:15,801 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:30:15,802 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2023-11-06 20:30:15,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data/600b41f36/8395052121aa4a3f9ca89adcdca422d5/FLAG050fe0d91 [2023-11-06 20:30:15,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data/600b41f36/8395052121aa4a3f9ca89adcdca422d5 [2023-11-06 20:30:15,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:30:15,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:30:15,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:15,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:30:15,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:30:15,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:15" (1/1) ... [2023-11-06 20:30:15,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14076225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:15, skipping insertion in model container [2023-11-06 20:30:15,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:15" (1/1) ... [2023-11-06 20:30:15,901 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:30:16,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:16,176 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 20:30:16,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50311f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:16, skipping insertion in model container [2023-11-06 20:30:16,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:16,178 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:30:16,180 INFO L158 Benchmark]: Toolchain (without parser) took 329.73ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 96.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 20:30:16,181 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory was 58.8MB in the beginning and 58.7MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:30:16,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.45ms. Allocated memory is still 148.9MB. Free memory was 106.4MB in the beginning and 96.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:30:16,184 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory was 58.8MB in the beginning and 58.7MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.45ms. Allocated memory is still 148.9MB. Free memory was 106.4MB in the beginning and 96.8MB in the end (delta: 9.6MB). 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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:30:18,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:30:18,685 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:30:18,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:30:18,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:30:18,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:30:18,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:30:18,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:30:18,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:30:18,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:30:18,772 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:30:18,772 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:30:18,773 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:30:18,774 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:30:18,775 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:30:18,775 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:30:18,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:30:18,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:30:18,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:30:18,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:30:18,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:30:18,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:30:18,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:30:18,780 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:30:18,781 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:30:18,781 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:30:18,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:30:18,782 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:30:18,783 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:30:18,783 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:30:18,784 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:30:18,785 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:30:18,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:30:18,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:30:18,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:30:18,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:30:18,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:30:18,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:30:18,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:30:18,787 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:30:18,788 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:30:18,788 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:30:18,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:30:18,789 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_1a1abd92-9f5b-422f-9b5c-c1287d39471c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c [2023-11-06 20:30:19,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:30:19,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:30:19,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:30:19,224 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:30:19,227 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:30:19,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2023-11-06 20:30:22,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:30:22,740 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:30:22,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2023-11-06 20:30:22,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data/5244d9288/aca2471590e44aab861061074e8266fd/FLAG9d102ac43 [2023-11-06 20:30:22,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/data/5244d9288/aca2471590e44aab861061074e8266fd [2023-11-06 20:30:22,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:30:22,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:30:22,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:22,769 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:30:22,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:30:22,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:22" (1/1) ... [2023-11-06 20:30:22,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c333876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22, skipping insertion in model container [2023-11-06 20:30:22,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:22" (1/1) ... [2023-11-06 20:30:22,805 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:30:23,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:23,050 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:30:23,066 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:30:23,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:23,103 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:30:23,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:23,148 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:23,148 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:23,157 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:30:23,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23 WrapperNode [2023-11-06 20:30:23,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:23,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:30:23,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:30:23,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:30:23,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,205 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2023-11-06 20:30:23,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:30:23,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:30:23,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:30:23,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:30:23,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:30:23,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:30:23,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:30:23,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:30:23,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (1/1) ... [2023-11-06 20:30:23,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:30:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:30:23,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:30:23,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a1abd92-9f5b-422f-9b5c-c1287d39471c/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:30:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:30:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:30:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:30:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:30:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:30:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:30:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:30:23,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:30:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 20:30:23,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 20:30:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:30:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:30:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:30:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:30:23,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:30:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:30:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:30:23,331 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 20:30:23,458 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:30:23,461 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:30:24,102 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:30:24,266 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:30:24,266 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 20:30:24,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:24 BoogieIcfgContainer [2023-11-06 20:30:24,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:30:24,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:30:24,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:30:24,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:30:24,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:30:22" (1/3) ... [2023-11-06 20:30:24,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d607336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:24, skipping insertion in model container [2023-11-06 20:30:24,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:23" (2/3) ... [2023-11-06 20:30:24,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d607336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:24, skipping insertion in model container [2023-11-06 20:30:24,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:24" (3/3) ... [2023-11-06 20:30:24,282 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2023-11-06 20:30:24,302 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:30:24,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 20:30:24,302 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:30:24,443 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 20:30:24,494 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:30:24,515 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 187 transitions, 395 flow [2023-11-06 20:30:24,520 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 187 transitions, 395 flow [2023-11-06 20:30:24,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 187 transitions, 395 flow [2023-11-06 20:30:24,652 INFO L124 PetriNetUnfolderBase]: 12/184 cut-off events. [2023-11-06 20:30:24,652 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 20:30:24,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 184 events. 12/184 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. 0/144 useless extension candidates. Maximal degree in co-relation 129. Up to 2 conditions per place. [2023-11-06 20:30:24,666 INFO L119 LiptonReduction]: Number of co-enabled transitions 2970