./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 cf1a7837 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_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:23,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:23,637 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:57:23,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:23,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:23,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:23,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:23,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:23,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:23,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:23,693 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:23,694 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:23,695 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:23,697 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:57:23,697 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:23,698 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:23,698 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:57:23,699 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:57:23,700 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:23,700 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:57:23,701 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:57:23,701 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:57:23,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:57:23,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:57:23,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:23,704 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:23,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:23,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:23,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:23,714 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:57:23,716 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:57:23,716 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:57:23,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:23,717 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:57:23,718 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:57:23,718 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:23,718 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:23,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:23,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:23,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:23,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:23,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:23,721 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:57:23,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:57:23,722 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:23,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:23,723 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_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 [2023-11-12 00:57:24,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:24,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:24,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:24,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:24,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:24,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-12 00:57:27,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:27,567 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:27,568 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-12 00:57:27,577 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data/11d826204/fa9bd87d92d2459784fe5ec48f31bbb6/FLAG891acc458 [2023-11-12 00:57:27,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data/11d826204/fa9bd87d92d2459784fe5ec48f31bbb6 [2023-11-12 00:57:27,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:27,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:27,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:27,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:27,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:27,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:27,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c52466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27, skipping insertion in model container [2023-11-12 00:57:27,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:27,653 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:27,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:27,927 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 00:57:27,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76a4a1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27, skipping insertion in model container [2023-11-12 00:57:27,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:27,929 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:57:27,932 INFO L158 Benchmark]: Toolchain (without parser) took 324.33ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 84.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:57:27,932 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:57:27,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.66ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 84.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:57:27,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.66ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 84.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:30,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:30,608 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:57:30,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:30,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:30,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:30,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:30,675 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:30,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:30,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:30,680 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:30,680 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:30,681 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:30,681 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:30,682 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:30,682 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:30,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:57:30,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:57:30,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:30,685 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:30,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:30,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:30,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:30,687 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:57:30,687 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:57:30,688 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:57:30,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:30,689 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:57:30,689 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:57:30,690 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:57:30,691 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:57:30,691 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:30,692 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:30,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:30,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:57:30,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:30,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:30,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:30,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:30,695 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:57:30,695 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:57:30,695 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:30,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:30,696 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_01f6a388-12e5-4d3b-a69b-27b4f2254b24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b28fb6889d0d92f72216f98e0edff81bbc7a955814acfd4caad3db76eb7ead3 [2023-11-12 00:57:31,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:31,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:31,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:31,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:31,158 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:31,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-12 00:57:34,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:34,761 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:34,762 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-12 00:57:34,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data/562931eed/c27d65fa31b74139bbacee577f420398/FLAGa3eb89c3b [2023-11-12 00:57:34,788 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/data/562931eed/c27d65fa31b74139bbacee577f420398 [2023-11-12 00:57:34,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:34,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:34,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:34,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:34,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:34,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656d0c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:34, skipping insertion in model container [2023-11-12 00:57:34,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:34" (1/1) ... [2023-11-12 00:57:34,828 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:35,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:35,145 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:57:35,158 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:35,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:35,189 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:35,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:35,266 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:35,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35 WrapperNode [2023-11-12 00:57:35,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:35,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:35,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:35,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:35,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,359 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 188 [2023-11-12 00:57:35,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:35,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:35,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:35,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:35,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:35,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:35,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:35,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:35,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (1/1) ... [2023-11-12 00:57:35,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:35,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:35,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:35,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f6a388-12e5-4d3b-a69b-27b4f2254b24/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:57:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:57:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:57:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:57:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:57:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:57:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:57:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:57:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:35,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:57:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:57:35,555 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 00:57:35,691 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:35,693 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:36,475 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:36,486 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:36,486 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:57:36,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:36 BoogieIcfgContainer [2023-11-12 00:57:36,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:36,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:36,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:36,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:36,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:34" (1/3) ... [2023-11-12 00:57:36,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb0f4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:36, skipping insertion in model container [2023-11-12 00:57:36,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:35" (2/3) ... [2023-11-12 00:57:36,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb0f4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:36, skipping insertion in model container [2023-11-12 00:57:36,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:36" (3/3) ... [2023-11-12 00:57:36,498 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2023-11-12 00:57:36,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:36,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-12 00:57:36,519 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:57:36,711 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 00:57:36,775 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:57:36,798 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 258 places, 272 transitions, 558 flow [2023-11-12 00:57:36,804 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 258 places, 272 transitions, 558 flow [2023-11-12 00:57:36,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 272 transitions, 558 flow [2023-11-12 00:57:36,995 INFO L124 PetriNetUnfolderBase]: 21/270 cut-off events. [2023-11-12 00:57:36,995 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 00:57:37,006 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. [2023-11-12 00:57:37,015 INFO L119 LiptonReduction]: Number of co-enabled transitions 8848