./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/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_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/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_960dc63b-15d2-4538-bb6c-c66d932b345c/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 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:05:46,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:05:46,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:05:46,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:05:46,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:05:46,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:05:46,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:05:46,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:05:46,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:05:46,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:05:46,442 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:05:46,443 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:05:46,444 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:05:46,446 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:05:46,446 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:05:46,446 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:05:46,447 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:05:46,447 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:05:46,448 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:05:46,448 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:05:46,449 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:05:46,449 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:05:46,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:05:46,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:05:46,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:05:46,452 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:05:46,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:05:46,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:05:46,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:05:46,453 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:05:46,455 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:05:46,455 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:05:46,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:05:46,456 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:05:46,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:05:46,456 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:05:46,456 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:05:46,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:05:46,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:05:46,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:46,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:05:46,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:05:46,458 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:05:46,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:05:46,459 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:05:46,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:05:46,459 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_960dc63b-15d2-4538-bb6c-c66d932b345c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2023-11-06 21:05:46,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:05:46,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:05:46,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:05:46,805 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:05:46,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:05:46,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-06 21:05:50,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:05:50,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:05:50,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-06 21:05:50,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data/6ea785525/9903d7f8e7c6491286e247eba76f51fe/FLAGcf20dcb25 [2023-11-06 21:05:50,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data/6ea785525/9903d7f8e7c6491286e247eba76f51fe [2023-11-06 21:05:50,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:05:50,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:05:50,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:50,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:05:50,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:05:50,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:50" (1/1) ... [2023-11-06 21:05:50,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b48007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:50, skipping insertion in model container [2023-11-06 21:05:50,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:50" (1/1) ... [2023-11-06 21:05:51,051 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:05:52,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:52,796 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 21:05:52,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a697ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:52, skipping insertion in model container [2023-11-06 21:05:52,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:52,797 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 21:05:52,799 INFO L158 Benchmark]: Toolchain (without parser) took 1861.80ms. Allocated memory is still 138.4MB. Free memory was 102.9MB in the beginning and 58.4MB in the end (delta: 44.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-06 21:05:52,800 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:05:52,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1859.03ms. Allocated memory is still 138.4MB. Free memory was 102.4MB in the beginning and 58.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-06 21:05:52,802 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 109.1MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1859.03ms. Allocated memory is still 138.4MB. Free memory was 102.4MB in the beginning and 58.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2975]: 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_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/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_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/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_960dc63b-15d2-4538-bb6c-c66d932b345c/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 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:05:55,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:05:55,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:05:55,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:05:55,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:05:55,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:05:55,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:05:55,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:05:55,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:05:55,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:05:55,449 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:05:55,449 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:05:55,450 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:05:55,450 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:05:55,451 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:05:55,452 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:05:55,453 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:05:55,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:05:55,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:05:55,454 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:05:55,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:05:55,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:05:55,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:05:55,456 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:05:55,457 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:05:55,457 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:05:55,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:05:55,458 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:05:55,458 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:05:55,459 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:05:55,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:05:55,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:05:55,460 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:05:55,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:05:55,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:05:55,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:05:55,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:55,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:05:55,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:05:55,462 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:05:55,462 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:05:55,462 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:05:55,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:05:55,463 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_960dc63b-15d2-4538-bb6c-c66d932b345c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2023-11-06 21:05:55,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:05:55,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:05:55,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:05:55,951 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:05:55,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:05:55,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-06 21:05:59,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:05:59,937 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:05:59,937 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-06 21:05:59,976 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data/588b81d30/cff4ad4db32c4b36b992803635a3e1c3/FLAG1ad79e23c [2023-11-06 21:05:59,997 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/data/588b81d30/cff4ad4db32c4b36b992803635a3e1c3 [2023-11-06 21:06:00,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:06:00,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:06:00,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:06:00,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:06:00,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:06:00,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:06:00" (1/1) ... [2023-11-06 21:06:00,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:00, skipping insertion in model container [2023-11-06 21:06:00,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:06:00" (1/1) ... [2023-11-06 21:06:00,127 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:06:01,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:06:01,693 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:06:01,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:06:01,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:06:01,995 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:06:02,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:06:02,467 WARN L672 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:06:02,475 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:06:02,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02 WrapperNode [2023-11-06 21:06:02,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:06:02,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:06:02,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:06:02,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:06:02,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,681 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985 [2023-11-06 21:06:02,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:06:02,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:06:02,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:06:02,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:06:02,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:06:02,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:06:02,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:06:02,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:06:02,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (1/1) ... [2023-11-06 21:06:02,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:06:02,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:06:02,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:06:02,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:06:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-06 21:06:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-06 21:06:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-06 21:06:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-06 21:06:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:06:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-06 21:06:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 21:06:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 21:06:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:06:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-06 21:06:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:06:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 21:06:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-06 21:06:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-06 21:06:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:06:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-06 21:06:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-06 21:06:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-06 21:06:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 21:06:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 21:06:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:06:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-06 21:06:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-06 21:06:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:06:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:06:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:06:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:06:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-06 21:06:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-06 21:06:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-06 21:06:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-06 21:06:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:06:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:06:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-06 21:06:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-06 21:06:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 21:06:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:06:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-06 21:06:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 21:06:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:06:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:06:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-06 21:06:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-06 21:06:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:06:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:06:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-06 21:06:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-06 21:06:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 21:06:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-06 21:06:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-06 21:06:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 21:06:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-06 21:06:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:06:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:06:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 21:06:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 21:06:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-06 21:06:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-06 21:06:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-06 21:06:03,000 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-06 21:06:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-06 21:06:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-06 21:06:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-06 21:06:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-06 21:06:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-06 21:06:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-06 21:06:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-06 21:06:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-06 21:06:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-06 21:06:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-06 21:06:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 21:06:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-06 21:06:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-06 21:06:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-06 21:06:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-06 21:06:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-06 21:06:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-06 21:06:03,367 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:06:03,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:06:09,248 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:06:09,261 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:06:09,261 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 21:06:09,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:06:09 BoogieIcfgContainer [2023-11-06 21:06:09,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:06:09,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:06:09,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:06:09,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:06:09,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:06:00" (1/3) ... [2023-11-06 21:06:09,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692509aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:06:09, skipping insertion in model container [2023-11-06 21:06:09,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:06:02" (2/3) ... [2023-11-06 21:06:09,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692509aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:06:09, skipping insertion in model container [2023-11-06 21:06:09,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:06:09" (3/3) ... [2023-11-06 21:06:09,273 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb_p.i [2023-11-06 21:06:09,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:06:09,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2023-11-06 21:06:09,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:06:09,371 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2041feca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 21:06:09,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2023-11-06 21:06:09,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-06 21:06:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 21:06:09,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:06:09,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:06:09,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-06 21:06:09,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:06:09,400 INFO L85 PathProgramCache]: Analyzing trace with hash 328182463, now seen corresponding path program 1 times [2023-11-06 21:06:09,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 21:06:09,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156170562] [2023-11-06 21:06:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:06:09,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:06:09,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 21:06:09,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:06:09,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 21:06:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:06:09,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:06:09,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:06:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:06:10,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:06:10,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 21:06:10,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156170562] [2023-11-06 21:06:10,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156170562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:06:10,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:06:10,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:06:10,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113461484] [2023-11-06 21:06:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:06:10,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:06:10,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 21:06:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:06:10,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:06:10,129 INFO L87 Difference]: Start difference. First operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:06:12,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:06:14,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:06:18,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:06:18,155 INFO L93 Difference]: Finished difference Result 1202 states and 1439 transitions. [2023-11-06 21:06:18,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:06:18,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 21:06:18,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:06:18,179 INFO L225 Difference]: With dead ends: 1202 [2023-11-06 21:06:18,179 INFO L226 Difference]: Without dead ends: 1198 [2023-11-06 21:06:18,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:06:18,183 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 685 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-06 21:06:18,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 2232 Invalid, 1104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1098 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2023-11-06 21:06:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2023-11-06 21:06:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 985. [2023-11-06 21:06:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 592 states have (on average 1.802364864864865) internal successors, (1067), 814 states have internal predecessors, (1067), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-06 21:06:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1343 transitions. [2023-11-06 21:06:18,320 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1343 transitions. Word has length 5 [2023-11-06 21:06:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:06:18,320 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1343 transitions. [2023-11-06 21:06:18,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:06:18,320 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1343 transitions. [2023-11-06 21:06:18,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 21:06:18,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:06:18,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:06:18,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:06:18,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:06:18,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-06 21:06:18,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:06:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash 328182464, now seen corresponding path program 1 times [2023-11-06 21:06:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 21:06:18,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983857417] [2023-11-06 21:06:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:06:18,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:06:18,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 21:06:18,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:06:18,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_960dc63b-15d2-4538-bb6c-c66d932b345c/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 21:06:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:06:19,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:06:19,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:06:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:06:19,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:06:19,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 21:06:19,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983857417] [2023-11-06 21:06:19,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983857417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:06:19,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:06:19,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:06:19,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702469959] [2023-11-06 21:06:19,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:06:19,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:06:19,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 21:06:19,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:06:19,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:06:19,344 INFO L87 Difference]: Start difference. First operand 985 states and 1343 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)