./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e523f48 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack_longer-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y --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 22f5e9b8cea3fb6414e4865b1626afaeb55342d9f0f16512cd01a49134cc1f25 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-5e523f4 [2024-11-21 00:41:09,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 00:41:09,238 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2024-11-21 00:41:09,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 00:41:09,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 00:41:09,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 00:41:09,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 00:41:09,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 00:41:09,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 00:41:09,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 00:41:09,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 00:41:09,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 00:41:09,296 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 00:41:09,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 00:41:09,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 00:41:09,296 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 00:41:09,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 00:41:09,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 00:41:09,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 00:41:09,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 00:41:09,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 00:41:09,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 00:41:09,299 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-21 00:41:09,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-21 00:41:09,299 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 00:41:09,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 00:41:09,299 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 00:41:09,299 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 00:41:09,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 00:41:09,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 00:41:09,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 00:41:09,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 00:41:09,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 00:41:09,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 00:41:09,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 00:41:09,300 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 00:41:09,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 00:41:09,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y 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 -> 22f5e9b8cea3fb6414e4865b1626afaeb55342d9f0f16512cd01a49134cc1f25 [2024-11-21 00:41:09,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 00:41:09,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 00:41:09,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 00:41:09,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 00:41:09,703 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 00:41:09,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/../../sv-benchmarks/c/pthread-ext/25_stack_longer-1.i [2024-11-21 00:41:12,966 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/data/f6e6342ad/76c5ff7b594b445cb3ad0ffc79d4f49e/FLAG5390768f6 [2024-11-21 00:41:13,369 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 00:41:13,370 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/sv-benchmarks/c/pthread-ext/25_stack_longer-1.i [2024-11-21 00:41:13,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/data/f6e6342ad/76c5ff7b594b445cb3ad0ffc79d4f49e/FLAG5390768f6 [2024-11-21 00:41:13,403 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/data/f6e6342ad/76c5ff7b594b445cb3ad0ffc79d4f49e [2024-11-21 00:41:13,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 00:41:13,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 00:41:13,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 00:41:13,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 00:41:13,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 00:41:13,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:41:13" (1/1) ... [2024-11-21 00:41:13,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115b1f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:13, skipping insertion in model container [2024-11-21 00:41:13,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:41:13" (1/1) ... [2024-11-21 00:41:13,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 00:41:13,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 00:41:14,019 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 00:41:14,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 00:41:14,170 INFO L204 MainTranslator]: Completed translation [2024-11-21 00:41:14,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14 WrapperNode [2024-11-21 00:41:14,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 00:41:14,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 00:41:14,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 00:41:14,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 00:41:14,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,249 INFO L138 Inliner]: procedures = 171, calls = 36, calls flagged for inlining = 10, calls inlined = 9, statements flattened = 783 [2024-11-21 00:41:14,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 00:41:14,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 00:41:14,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 00:41:14,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 00:41:14,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,304 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 00:41:14,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 00:41:14,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 00:41:14,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 00:41:14,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (1/1) ... [2024-11-21 00:41:14,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 00:41:14,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:41:14,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 00:41:14,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 00:41:14,441 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-21 00:41:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-21 00:41:14,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-21 00:41:14,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-21 00:41:14,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 00:41:14,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 00:41:14,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-21 00:41:14,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-21 00:41:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 00:41:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 00:41:14,445 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 00:41:14,646 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 00:41:14,649 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 00:41:16,040 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 00:41:16,041 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 00:41:31,319 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 00:41:31,319 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-21 00:41:31,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:41:31 BoogieIcfgContainer [2024-11-21 00:41:31,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 00:41:31,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 00:41:31,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 00:41:31,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 00:41:31,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:41:13" (1/3) ... [2024-11-21 00:41:31,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17532ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:41:31, skipping insertion in model container [2024-11-21 00:41:31,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:41:14" (2/3) ... [2024-11-21 00:41:31,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17532ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:41:31, skipping insertion in model container [2024-11-21 00:41:31,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:41:31" (3/3) ... [2024-11-21 00:41:31,332 INFO L128 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-1.i [2024-11-21 00:41:31,353 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 00:41:31,356 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 25_stack_longer-1.i that has 2 procedures, 50 locations, 1 initial locations, 2 loop locations, and 10 error locations. [2024-11-21 00:41:31,356 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 00:41:31,647 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 00:41:31,716 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:41:31,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 00:41:31,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:41:31,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 00:41:31,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d6ff01-7b23-413a-82d0-6a90ec4cb32e/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 00:41:31,828 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:41:31,841 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-11-21 00:41:31,849 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4faf85d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:41:31,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-21 00:41:32,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-21 00:41:32,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:41:32,048 INFO L85 PathProgramCache]: Analyzing trace with hash -807672604, now seen corresponding path program 1 times [2024-11-21 00:41:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:41:32,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198994912] [2024-11-21 00:41:32,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:41:32,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms