./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:05:35,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:05:35,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 12:05:35,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:05:35,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:05:35,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:05:35,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:05:35,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:05:35,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:05:35,662 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:05:35,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:05:35,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:05:35,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:05:35,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:05:35,666 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:05:35,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:05:35,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:05:35,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:05:35,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:05:35,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:05:35,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:05:35,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:05:35,670 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:05:35,670 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:05:35,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:05:35,671 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:05:35,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:05:35,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:05:35,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:05:35,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:05:35,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:35,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:05:35,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:05:35,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:05:35,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:05:35,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:05:35,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:05:35,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:05:35,676 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:05:35,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:05:35,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:05:35,677 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2023-11-26 12:05:35,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:05:36,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:05:36,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:05:36,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:05:36,026 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:05:36,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-26 12:05:39,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:05:41,198 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:05:41,199 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-26 12:05:41,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data/ae7e427ce/bb0bddaf149d4796b65237fe26eddcaa/FLAG7b63e3f25 [2023-11-26 12:05:41,399 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data/ae7e427ce/bb0bddaf149d4796b65237fe26eddcaa [2023-11-26 12:05:41,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:05:41,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:05:41,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:41,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:05:41,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:05:41,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:41" (1/1) ... [2023-11-26 12:05:41,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49573701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:41, skipping insertion in model container [2023-11-26 12:05:41,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:41" (1/1) ... [2023-11-26 12:05:42,162 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:13,839 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-26 12:06:13,841 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-26 12:06:13,842 WARN L638 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-26 12:06:13,843 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-26 12:06:13,846 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-26 12:06:13,847 WARN L638 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-26 12:06:13,848 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-26 12:06:13,851 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-26 12:06:13,860 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-26 12:06:13,929 WARN L638 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-26 12:06:14,170 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-26 12:06:15,221 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-26 12:06:15,517 ERROR L324 MainTranslator]: Unsupported Syntax: The second argument of the pthread_mutex_init is not a null pointer. This means that non-default attributes are used. We support only the default attributes. [2023-11-26 12:06:15,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36abcdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:15, skipping insertion in model container [2023-11-26 12:06:15,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:15,519 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 12:06:15,521 INFO L158 Benchmark]: Toolchain (without parser) took 34113.65ms. Allocated memory was 161.5MB in the beginning and 323.0MB in the end (delta: 161.5MB). Free memory was 71.4MB in the beginning and 105.7MB in the end (delta: -34.3MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. [2023-11-26 12:06:15,522 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 161.5MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:06:15,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 34108.69ms. Allocated memory was 161.5MB in the beginning and 323.0MB in the end (delta: 161.5MB). Free memory was 70.8MB in the beginning and 105.7MB in the end (delta: -34.9MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. [2023-11-26 12:06:15,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 161.5MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 34108.69ms. Allocated memory was 161.5MB in the beginning and 323.0MB in the end (delta: 161.5MB). Free memory was 70.8MB in the beginning and 105.7MB in the end (delta: -34.9MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 36411]: Unsupported Syntax The second argument of the pthread_mutex_init is not a null pointer. This means that non-default attributes are used. We support only the default attributes. 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_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:06:18,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:06:18,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 12:06:18,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:06:18,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:06:18,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 12:06:18,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:06:18,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:06:18,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:06:18,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:06:18,495 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:06:18,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:06:18,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:06:18,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:06:18,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:06:18,501 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:06:18,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:06:18,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:06:18,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:06:18,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:06:18,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:06:18,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:06:18,507 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:06:18,508 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:06:18,509 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:06:18,509 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:06:18,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:06:18,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:06:18,511 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:06:18,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:06:18,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:06:18,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:06:18,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:06:18,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:18,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:06:18,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:06:18,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:06:18,518 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:06:18,518 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:06:18,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:06:18,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:06:18,520 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:06:18,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:06:18,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:06:18,521 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:06:18,522 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2023-11-26 12:06:19,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:06:19,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:06:19,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:06:19,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:06:19,105 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:06:19,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-26 12:06:22,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:06:25,655 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:06:25,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-26 12:06:25,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data/47d77de20/cdc7dc08d77a47359bf0988aff53b67b/FLAG981d1562b [2023-11-26 12:06:25,963 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d265f1b-ef31-43ef-816c-fb4d576a1be7/bin/uautomizer-verify-VRDe98Ueme/data/47d77de20/cdc7dc08d77a47359bf0988aff53b67b [2023-11-26 12:06:25,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:06:25,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:06:25,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:25,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:06:25,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:06:25,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:25,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a99d0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25, skipping insertion in model container [2023-11-26 12:06:25,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,769 INFO L177 MainTranslator]: Built tables and reachable declarations