./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:00:07,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:00:07,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 05:00:07,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:00:07,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:00:07,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:00:07,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:00:07,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:00:07,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:00:07,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:00:07,748 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:00:07,749 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:00:07,749 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:00:07,750 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:00:07,750 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:00:07,751 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:00:07,751 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:00:07,752 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:00:07,752 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:00:07,753 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:00:07,753 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:00:07,754 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:00:07,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:00:07,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:00:07,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:00:07,756 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:00:07,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:00:07,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:00:07,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:00:07,768 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:00:07,769 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:00:07,770 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:00:07,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:00:07,770 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:00:07,771 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:00:07,771 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:00:07,771 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:00:07,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:00:07,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:00:07,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:07,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:00:07,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:00:07,773 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:00:07,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:00:07,774 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:00:07,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:00:07,774 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_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 [2023-11-19 05:00:08,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:00:08,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:00:08,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:00:08,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:00:08,146 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:00:08,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-19 05:00:11,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:00:11,586 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:00:11,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-19 05:00:11,601 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data/f1942fa22/2bf41513f3224d2e9d33a114431a4647/FLAGf5eb0e571 [2023-11-19 05:00:11,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data/f1942fa22/2bf41513f3224d2e9d33a114431a4647 [2023-11-19 05:00:11,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:00:11,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:00:11,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:11,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:00:11,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:00:11,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:11" (1/1) ... [2023-11-19 05:00:11,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a53297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:11, skipping insertion in model container [2023-11-19 05:00:11,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:11" (1/1) ... [2023-11-19 05:00:11,668 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:00:11,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:11,918 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 05:00:11,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24ec1b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:11, skipping insertion in model container [2023-11-19 05:00:11,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:11,920 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:00:11,921 INFO L158 Benchmark]: Toolchain (without parser) took 292.94ms. Allocated memory is still 184.5MB. Free memory was 154.3MB in the beginning and 143.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:00:11,922 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:00:11,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.31ms. Allocated memory is still 184.5MB. Free memory was 154.0MB in the beginning and 143.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:00:11,925 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.31ms. Allocated memory is still 184.5MB. Free memory was 154.0MB in the beginning and 143.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 116]: 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_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:00:14,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:00:14,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 05:00:14,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:00:14,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:00:14,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:00:14,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:00:14,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:00:14,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:00:14,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:00:14,544 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:00:14,545 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:00:14,545 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:00:14,547 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:00:14,547 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:00:14,548 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:00:14,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:00:14,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:00:14,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:00:14,551 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:00:14,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:00:14,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:00:14,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:00:14,553 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:00:14,553 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:00:14,554 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:00:14,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:00:14,554 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:00:14,555 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:00:14,555 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:00:14,557 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:00:14,557 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:00:14,557 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:00:14,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:00:14,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:00:14,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:00:14,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:14,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:00:14,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:00:14,560 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:00:14,560 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:00:14,561 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:00:14,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:00:14,561 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_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 [2023-11-19 05:00:15,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:00:15,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:00:15,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:00:15,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:00:15,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:00:15,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-19 05:00:18,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:00:18,611 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:00:18,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-19 05:00:18,624 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data/1b78d337d/d93c664f5f20431f9050895f283bd22f/FLAG3a292ce17 [2023-11-19 05:00:18,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/data/1b78d337d/d93c664f5f20431f9050895f283bd22f [2023-11-19 05:00:18,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:00:18,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:00:18,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:18,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:00:18,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:00:18,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:18" (1/1) ... [2023-11-19 05:00:18,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a494cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:18, skipping insertion in model container [2023-11-19 05:00:18,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:18" (1/1) ... [2023-11-19 05:00:18,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:00:18,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:18,941 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:00:18,948 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:00:18,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:19,005 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:00:19,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:19,072 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:00:19,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19 WrapperNode [2023-11-19 05:00:19,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:19,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:19,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:00:19,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:00:19,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,125 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 188 [2023-11-19 05:00:19,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:19,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:00:19,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:00:19,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:00:19,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:00:19,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:00:19,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:00:19,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:00:19,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (1/1) ... [2023-11-19 05:00:19,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:19,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:19,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:00:19,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6759e59d-a18a-4031-be70-73cb53657dd1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:00:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:00:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:00:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:00:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:00:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 05:00:19,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 05:00:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 05:00:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 05:00:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:00:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:00:19,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:00:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:00:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:00:19,273 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:00:19,394 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:00:19,396 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:00:20,058 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:00:20,071 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:00:20,071 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 05:00:20,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:20 BoogieIcfgContainer [2023-11-19 05:00:20,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:00:20,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:00:20,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:00:20,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:00:20,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:00:18" (1/3) ... [2023-11-19 05:00:20,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45886f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:20, skipping insertion in model container [2023-11-19 05:00:20,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:19" (2/3) ... [2023-11-19 05:00:20,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45886f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:20, skipping insertion in model container [2023-11-19 05:00:20,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:20" (3/3) ... [2023-11-19 05:00:20,087 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2023-11-19 05:00:20,104 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:00:20,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-19 05:00:20,104 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:00:20,256 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 05:00:20,295 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:00:20,309 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 258 places, 272 transitions, 558 flow [2023-11-19 05:00:20,312 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 258 places, 272 transitions, 558 flow [2023-11-19 05:00:20,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 272 transitions, 558 flow [2023-11-19 05:00:20,460 INFO L124 PetriNetUnfolderBase]: 21/270 cut-off events. [2023-11-19 05:00:20,461 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 05:00:20,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 21/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 572 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 163. Up to 2 conditions per place. [2023-11-19 05:00:20,476 INFO L119 LiptonReduction]: Number of co-enabled transitions 8848