./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 527bcce2 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_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/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_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx --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 0.2.3-dev-527bcce [2023-11-21 22:10:12,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:12,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 22:10:12,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:12,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:12,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:12,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:12,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:12,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:10:12,726 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:10:12,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:10:12,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:10:12,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:12,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:12,730 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:12,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:12,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:10:12,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:12,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:12,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:10:12,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:10:12,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:10:12,734 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:10:12,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:12,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:12,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:12,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:12,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:12,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:10:12,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:10:12,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:12,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:12,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:10:12,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:10:12,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:12,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:10:12,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:10:12,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:10:12,741 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:10:12,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:10:12,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:10:12,742 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_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2023-11-21 22:10:13,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:13,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:13,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:13,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:13,066 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:13,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-21 22:10:16,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:10:18,265 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:10:18,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-21 22:10:18,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data/40ca6ce1d/6babda265afe443c937a4491e10bf54a/FLAG381641a71 [2023-11-21 22:10:18,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data/40ca6ce1d/6babda265afe443c937a4491e10bf54a [2023-11-21 22:10:18,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:10:18,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:10:18,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:18,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:10:18,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:10:18,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:18" (1/1) ... [2023-11-21 22:10:18,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fb0345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:18, skipping insertion in model container [2023-11-21 22:10:18,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:18" (1/1) ... [2023-11-21 22:10:19,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:10:51,863 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-21 22:10:51,865 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-21 22:10:51,866 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-21 22:10:51,868 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-21 22:10:51,873 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-21 22:10:51,874 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-21 22:10:51,875 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-21 22:10:51,882 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-21 22:10:51,883 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-21 22:10:51,973 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-21 22:10:52,132 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-21 22:10:52,932 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-21 22:10:53,419 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. [2023-11-21 22:10:53,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4047b860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:53, skipping insertion in model container [2023-11-21 22:10:53,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:53,422 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:10:53,425 INFO L158 Benchmark]: Toolchain (without parser) took 34932.40ms. Allocated memory was 184.5MB in the beginning and 375.4MB in the end (delta: 190.8MB). Free memory was 109.2MB in the beginning and 226.8MB in the end (delta: -117.6MB). Peak memory consumption was 245.6MB. Max. memory is 16.1GB. [2023-11-21 22:10:53,425 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 82.8MB in the end (delta: 157.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:10:53,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 34927.99ms. Allocated memory was 184.5MB in the beginning and 375.4MB in the end (delta: 190.8MB). Free memory was 108.6MB in the beginning and 226.8MB in the end (delta: -118.2MB). Peak memory consumption was 245.6MB. Max. memory is 16.1GB. [2023-11-21 22:10:53,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 82.8MB in the end (delta: 157.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 34927.99ms. Allocated memory was 184.5MB in the beginning and 375.4MB in the end (delta: 190.8MB). Free memory was 108.6MB in the beginning and 226.8MB in the end (delta: -118.2MB). Peak memory consumption was 245.6MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/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_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx --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 0.2.3-dev-527bcce [2023-11-21 22:10:55,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:55,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-21 22:10:55,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:55,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:55,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-21 22:10:55,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:55,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:55,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:55,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:10:55,957 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:10:55,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:10:55,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:10:55,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:55,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:55,962 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:55,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:55,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:10:55,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:55,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:10:55,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:10:55,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:10:55,966 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:10:55,967 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:10:55,967 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:10:55,968 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:10:55,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:55,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:55,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:55,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:55,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:55,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:10:55,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:10:55,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:55,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:55,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:10:55,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:10:55,974 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:10:55,974 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:10:55,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:10:55,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:10:55,975 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:10:55,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:10:55,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:10:55,976 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:10:55,976 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_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2023-11-21 22:10:56,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:56,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:56,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:56,390 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:56,392 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:56,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-21 22:10:59,656 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:01,654 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:01,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-21 22:11:01,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data/87eb58ea5/66455d13759c4db2a42b22d2587d40d2/FLAG522f5a7ad [2023-11-21 22:11:01,875 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b40cf9a3-32b2-4ab2-91d0-92dea67bfc03/bin/uautomizer-verify-bycVGegfSx/data/87eb58ea5/66455d13759c4db2a42b22d2587d40d2 [2023-11-21 22:11:01,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:01,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:01,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:01,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:01,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:01,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ada365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01, skipping insertion in model container [2023-11-21 22:11:01,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:02,627 INFO L177 MainTranslator]: Built tables and reachable declarations