/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.positions.where.we.compute.the.hoare.annotation All --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows ASSERTandASSUME -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:07:34,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:07:34,482 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2025-03-15 02:07:34,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:07:34,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:07:34,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:07:34,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:07:34,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:07:34,509 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:07:34,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:07:34,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:07:34,509 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:07:34,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:07:34,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:07:34,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:07:34,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:07:34,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:07:34,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> ASSERTandASSUME [2025-03-15 02:07:34,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:07:34,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:07:34,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:07:34,767 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:07:34,767 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:07:34,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2025-03-15 02:07:36,028 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390cd9c7b/378e99d243684a0283728caeaa260726/FLAG7f7700819 [2025-03-15 02:07:36,307 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:07:36,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2025-03-15 02:07:36,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390cd9c7b/378e99d243684a0283728caeaa260726/FLAG7f7700819 [2025-03-15 02:07:36,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390cd9c7b/378e99d243684a0283728caeaa260726 [2025-03-15 02:07:36,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:07:36,345 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:07:36,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:07:36,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:07:36,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:07:36,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1b2d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36, skipping insertion in model container [2025-03-15 02:07:36,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:07:36,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:07:36,648 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:07:36,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:07:36,716 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:07:36,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36 WrapperNode [2025-03-15 02:07:36,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:07:36,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:07:36,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:07:36,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:07:36,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,743 INFO L138 Inliner]: procedures = 162, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-03-15 02:07:36,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:07:36,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:07:36,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:07:36,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:07:36,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,753 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:07:36,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:07:36,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:07:36,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:07:36,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (1/1) ... [2025-03-15 02:07:36,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:07:36,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:07:36,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-15 02:07:36,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-15 02:07:36,814 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2025-03-15 02:07:36,814 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2025-03-15 02:07:36,814 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-15 02:07:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:07:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:07:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-15 02:07:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:07:36,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:07:36,816 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 02:07:36,913 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:07:36,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:07:37,038 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:07:37,038 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:07:37,061 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:07:37,061 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-15 02:07:37,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:07:37 BoogieIcfgContainer [2025-03-15 02:07:37,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:07:37,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:07:37,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:07:37,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:07:37,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:07:36" (1/3) ... [2025-03-15 02:07:37,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db30c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:07:37, skipping insertion in model container [2025-03-15 02:07:37,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:36" (2/3) ... [2025-03-15 02:07:37,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db30c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:07:37, skipping insertion in model container [2025-03-15 02:07:37,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:07:37" (3/3) ... [2025-03-15 02:07:37,074 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2025-03-15 02:07:37,086 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:07:37,089 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_52-refine-protected-loop2-small_true.i that has 2 procedures, 70 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-03-15 02:07:37,089 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:07:37,137 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 02:07:37,174 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:07:37,184 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@227c60e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:07:37,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-15 02:07:37,224 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:07:37,225 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2025-03-15 02:07:37,226 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 02:07:37,226 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:37,226 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:07:37,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:37,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:37,233 INFO L85 PathProgramCache]: Analyzing trace with hash 271290939, now seen corresponding path program 1 times [2025-03-15 02:07:37,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:37,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193043962] [2025-03-15 02:07:37,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:37,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:37,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:37,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193043962] [2025-03-15 02:07:37,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193043962] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:37,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:37,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:07:37,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467255861] [2025-03-15 02:07:37,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:37,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:07:37,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:37,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:07:37,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:07:37,530 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 73 [2025-03-15 02:07:37,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 73 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:37,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:37,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 73 [2025-03-15 02:07:37,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:37,607 INFO L124 PetriNetUnfolderBase]: 1/63 cut-off events. [2025-03-15 02:07:37,607 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-15 02:07:37,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 63 events. 1/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 46. Up to 8 conditions per place. [2025-03-15 02:07:37,612 INFO L140 encePairwiseOnDemand]: 64/73 looper letters, 11 selfloop transitions, 4 changer transitions 3/63 dead transitions. [2025-03-15 02:07:37,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 63 transitions, 159 flow [2025-03-15 02:07:37,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:07:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:07:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 280 transitions. [2025-03-15 02:07:37,626 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7671232876712328 [2025-03-15 02:07:37,630 INFO L298 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2025-03-15 02:07:37,631 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 63 transitions, 159 flow [2025-03-15 02:07:37,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:37,631 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:37,631 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:07:37,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:07:37,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:37,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -179915246, now seen corresponding path program 1 times [2025-03-15 02:07:37,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752865695] [2025-03-15 02:07:37,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:37,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:37,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:37,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752865695] [2025-03-15 02:07:37,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752865695] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:37,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:37,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:07:37,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670308524] [2025-03-15 02:07:37,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:37,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:07:37,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:37,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:07:37,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:07:37,728 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 73 [2025-03-15 02:07:37,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 63 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:37,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:37,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 73 [2025-03-15 02:07:37,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:37,766 INFO L124 PetriNetUnfolderBase]: 1/62 cut-off events. [2025-03-15 02:07:37,766 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-15 02:07:37,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 62 events. 1/62 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 56. Up to 10 conditions per place. [2025-03-15 02:07:37,767 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-03-15 02:07:37,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 62 transitions, 183 flow [2025-03-15 02:07:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:07:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:07:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 223 transitions. [2025-03-15 02:07:37,768 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7636986301369864 [2025-03-15 02:07:37,768 INFO L298 CegarLoopForPetriNet]: 73 programPoint places, -1 predicate places. [2025-03-15 02:07:37,768 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 183 flow [2025-03-15 02:07:37,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:37,773 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_52-refine-protected-loop2-small_true.i_petrified1_AllErrorsAtOnce [2025-03-15 02:07:37,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2025-03-15 02:07:37,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2025-03-15 02:07:37,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2025-03-15 02:07:37,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2025-03-15 02:07:37,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2025-03-15 02:07:37,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 02:07:37,785 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-15 02:07:37,789 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 02:07:37,789 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 02:07:37,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:07:37 BasicIcfg [2025-03-15 02:07:37,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 02:07:37,793 INFO L158 Benchmark]: Toolchain (without parser) took 1448.26ms. Allocated memory is still 71.3MB. Free memory was 42.8MB in the beginning and 32.5MB in the end (delta: 10.3MB). Peak memory consumption was 6.8MB. Max. memory is 8.0GB. [2025-03-15 02:07:37,793 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 37.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:07:37,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.38ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 23.3MB in the end (delta: 19.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 02:07:37,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.27ms. Allocated memory is still 71.3MB. Free memory was 23.3MB in the beginning and 21.6MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 02:07:37,794 INFO L158 Benchmark]: Boogie Preprocessor took 14.81ms. Allocated memory is still 71.3MB. Free memory was 21.6MB in the beginning and 20.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:07:37,795 INFO L158 Benchmark]: RCFGBuilder took 304.06ms. Allocated memory is still 71.3MB. Free memory was 20.6MB in the beginning and 33.8MB in the end (delta: -13.2MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. [2025-03-15 02:07:37,795 INFO L158 Benchmark]: TraceAbstraction took 725.62ms. Allocated memory is still 71.3MB. Free memory was 32.8MB in the beginning and 32.5MB in the end (delta: 309.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:07:37,796 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 37.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 370.38ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 23.3MB in the end (delta: 19.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.27ms. Allocated memory is still 71.3MB. Free memory was 23.3MB in the beginning and 21.6MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.81ms. Allocated memory is still 71.3MB. Free memory was 21.6MB in the beginning and 20.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 304.06ms. Allocated memory is still 71.3MB. Free memory was 20.6MB in the beginning and 33.8MB in the end (delta: -13.2MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. * TraceAbstraction took 725.62ms. Allocated memory is still 71.3MB. Free memory was 32.8MB in the beginning and 32.5MB in the end (delta: 309.0kB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 6 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=2, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 02:07:37,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...