./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:18,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:18,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:59:18,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:18,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:18,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:18,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:18,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:18,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:18,251 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:18,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:18,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:18,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:18,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:18,256 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:18,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:18,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:59:18,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:18,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:18,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:59:18,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:18,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:59:18,260 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:59:18,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:59:18,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:59:18,261 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:18,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:18,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:18,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:18,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:18,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:18,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:18,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:18,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:59:18,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:59:18,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:59:18,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:18,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:18,267 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:59:18,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:18,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:18,268 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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 [2023-11-26 11:59:18,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:18,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:18,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:18,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:18,643 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:18,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-26 11:59:21,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:59:23,637 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:59:23,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-26 11:59:23,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data/7d9ca89a7/6b04dc1fd517436eaec147ce1e533894/FLAG4ebab2871 [2023-11-26 11:59:23,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data/7d9ca89a7/6b04dc1fd517436eaec147ce1e533894 [2023-11-26 11:59:23,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:59:23,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:59:23,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:23,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:59:23,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:59:23,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:23" (1/1) ... [2023-11-26 11:59:23,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0e428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:23, skipping insertion in model container [2023-11-26 11:59:23,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:23" (1/1) ... [2023-11-26 11:59:24,632 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:59:57,465 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-26 11:59:57,467 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-26 11:59:57,469 WARN L638 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-26 11:59:57,478 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-26 11:59:57,480 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-26 11:59:57,482 WARN L638 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-26 11:59:57,483 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-26 11:59:57,485 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-26 11:59:57,488 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-26 11:59:57,552 WARN L638 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-26 11:59:57,710 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-26 11:59:58,401 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-26 11:59:58,818 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 11:59:58,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d011bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:58, skipping insertion in model container [2023-11-26 11:59:58,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:58,819 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 11:59:58,822 INFO L158 Benchmark]: Toolchain (without parser) took 34956.57ms. Allocated memory was 180.4MB in the beginning and 297.8MB in the end (delta: 117.4MB). Free memory was 73.1MB in the beginning and 141.1MB in the end (delta: -68.1MB). Peak memory consumption was 187.9MB. Max. memory is 16.1GB. [2023-11-26 11:59:58,822 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:59:58,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 34953.62ms. Allocated memory was 180.4MB in the beginning and 297.8MB in the end (delta: 117.4MB). Free memory was 73.1MB in the beginning and 141.1MB in the end (delta: -68.1MB). Peak memory consumption was 187.9MB. Max. memory is 16.1GB. [2023-11-26 11:59:58,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 34953.62ms. Allocated memory was 180.4MB in the beginning and 297.8MB in the end (delta: 117.4MB). Free memory was 73.1MB in the beginning and 141.1MB in the end (delta: -68.1MB). Peak memory consumption was 187.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 36272]: 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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:01,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:01,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 12:00:01,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:01,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:01,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 12:00:01,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:01,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:01,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:01,354 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:01,355 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:01,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:01,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:01,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:01,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:01,359 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:01,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:01,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:01,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:01,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:01,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:01,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:01,365 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:00:01,366 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:00:01,366 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:00:01,367 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:00:01,368 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:01,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:01,369 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:01,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:01,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:01,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:01,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:01,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:01,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:01,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:01,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:01,375 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:00:01,375 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:00:01,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:01,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:01,377 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:01,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:01,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:01,378 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:00:01,378 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_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 [2023-11-26 12:00:01,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:01,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:01,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:01,867 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:01,867 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:01,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-26 12:00:05,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:07,398 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:07,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-26 12:00:07,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data/dfe1cbfd1/8dc117cc408e4a27be430440e4984c1a/FLAG17895953b [2023-11-26 12:00:07,604 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0b3e4b6-ba94-41f8-92ae-5f06cdd8285b/bin/uautomizer-verify-VRDe98Ueme/data/dfe1cbfd1/8dc117cc408e4a27be430440e4984c1a [2023-11-26 12:00:07,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:07,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:07,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:07,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:07,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:07,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:07" (1/1) ... [2023-11-26 12:00:07,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1873f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:07, skipping insertion in model container [2023-11-26 12:00:07,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:07" (1/1) ... [2023-11-26 12:00:09,006 INFO L177 MainTranslator]: Built tables and reachable declarations