./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 17:19:27,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 17:19:27,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-21 17:19:27,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 17:19:27,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 17:19:27,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 17:19:27,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 17:19:27,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 17:19:27,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 17:19:27,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 17:19:27,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 17:19:27,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 17:19:27,917 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 17:19:27,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 17:19:27,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 17:19:27,920 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 17:19:27,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 17:19:27,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 17:19:27,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 17:19:27,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 17:19:27,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 17:19:27,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 17:19:27,924 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 17:19:27,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 17:19:27,925 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 17:19:27,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 17:19:27,926 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 17:19:27,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 17:19:27,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 17:19:27,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 17:19:27,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 17:19:27,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:19:27,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 17:19:27,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 17:19:27,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 17:19:27,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 17:19:27,932 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 17:19:27,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 17:19:27,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 17:19:27,933 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 17:19:27,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 17:19:27,934 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 17:19:27,934 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 17:19:27,934 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 17:19:27,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f [2023-11-21 17:19:28,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 17:19:28,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 17:19:28,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 17:19:28,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 17:19:28,314 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 17:19:28,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/../../sv-benchmarks/c/pthread-atomic/dekker.i [2023-11-21 17:19:31,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 17:19:31,668 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 17:19:31,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/sv-benchmarks/c/pthread-atomic/dekker.i [2023-11-21 17:19:31,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/data/3e99ee618/1ebcd55d0db1485d9e8d289f285c8c49/FLAG02eb49a18 [2023-11-21 17:19:31,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/data/3e99ee618/1ebcd55d0db1485d9e8d289f285c8c49 [2023-11-21 17:19:31,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 17:19:31,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 17:19:31,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 17:19:31,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 17:19:31,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 17:19:31,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:19:31" (1/1) ... [2023-11-21 17:19:31,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ced3b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:31, skipping insertion in model container [2023-11-21 17:19:31,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:19:31" (1/1) ... [2023-11-21 17:19:31,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 17:19:32,063 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 17:19:32,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:19:32,269 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 17:19:32,305 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 17:19:32,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:19:32,391 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:19:32,392 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:19:32,392 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:19:32,401 INFO L206 MainTranslator]: Completed translation [2023-11-21 17:19:32,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32 WrapperNode [2023-11-21 17:19:32,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 17:19:32,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 17:19:32,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 17:19:32,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 17:19:32,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,453 INFO L138 Inliner]: procedures = 172, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2023-11-21 17:19:32,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 17:19:32,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 17:19:32,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 17:19:32,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 17:19:32,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 17:19:32,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 17:19:32,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 17:19:32,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 17:19:32,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (1/1) ... [2023-11-21 17:19:32,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:19:32,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:19:32,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 17:19:32,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 17:19:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 17:19:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-21 17:19:32,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-21 17:19:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-21 17:19:32,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-21 17:19:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 17:19:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 17:19:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 17:19:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 17:19:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 17:19:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 17:19:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 17:19:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 17:19:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 17:19:32,685 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 17:19:32,894 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 17:19:32,898 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 17:19:33,186 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 17:19:33,364 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 17:19:33,365 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 17:19:33,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:19:33 BoogieIcfgContainer [2023-11-21 17:19:33,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 17:19:33,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 17:19:33,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 17:19:33,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 17:19:33,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:19:31" (1/3) ... [2023-11-21 17:19:33,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277d5c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:19:33, skipping insertion in model container [2023-11-21 17:19:33,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:32" (2/3) ... [2023-11-21 17:19:33,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277d5c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:19:33, skipping insertion in model container [2023-11-21 17:19:33,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:19:33" (3/3) ... [2023-11-21 17:19:33,380 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2023-11-21 17:19:33,390 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 17:19:33,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 17:19:33,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-11-21 17:19:33,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277d5c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:19:33, skipping insertion in model container [2023-11-21 17:19:33,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 17:19:33,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 17:19:33,408 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 17:19:33,408 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 17:19:33,408 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:19:33" (3/3) ... [2023-11-21 17:19:33,411 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 17:19:33,415 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2023-11-21 17:19:33,415 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-11-21 17:19:33,423 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2023-11-21 17:19:33,423 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-21 17:19:33,424 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 17:19:33,424 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 17:19:33,540 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/witness.graphml [2023-11-21 17:19:33,542 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/witness.yml [2023-11-21 17:19:33,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 17:19:33,545 INFO L158 Benchmark]: Toolchain (without parser) took 1818.63ms. Allocated memory is still 144.7MB. Free memory was 99.5MB in the beginning and 86.8MB in the end (delta: 12.8MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-11-21 17:19:33,545 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 113.2MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 17:19:33,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 673.27ms. Allocated memory is still 144.7MB. Free memory was 99.5MB in the beginning and 79.2MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 17:19:33,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.43ms. Allocated memory is still 144.7MB. Free memory was 79.2MB in the beginning and 76.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:19:33,547 INFO L158 Benchmark]: Boogie Preprocessor took 35.95ms. Allocated memory is still 144.7MB. Free memory was 76.9MB in the beginning and 75.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:19:33,547 INFO L158 Benchmark]: RCFGBuilder took 876.94ms. Allocated memory is still 144.7MB. Free memory was 75.3MB in the beginning and 94.1MB in the end (delta: -18.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 17:19:33,548 INFO L158 Benchmark]: TraceAbstraction took 35.01ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 91.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:19:33,549 INFO L158 Benchmark]: Witness Printer took 135.45ms. Allocated memory is still 144.7MB. Free memory was 91.4MB in the beginning and 86.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 17:19:33,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 113.2MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 673.27ms. Allocated memory is still 144.7MB. Free memory was 99.5MB in the beginning and 79.2MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.43ms. Allocated memory is still 144.7MB. Free memory was 79.2MB in the beginning and 76.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.95ms. Allocated memory is still 144.7MB. Free memory was 76.9MB in the beginning and 75.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 876.94ms. Allocated memory is still 144.7MB. Free memory was 75.3MB in the beginning and 94.1MB in the end (delta: -18.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 35.01ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 91.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 135.45ms. Allocated memory is still 144.7MB. Free memory was 91.4MB in the beginning and 86.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2023-11-21 17:19:33,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e0e31b-467f-4697-880a-aeeb90b626e1/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE