./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-theta/unwind1-nondet.i --full-output --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2e5b835a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-theta/unwind1-nondet.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a0bf8c242a99657d9f82417f2e30c672800a0a11b8b06555f607ba068bef519 --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.theta-eval-2e5b835-m [2024-10-21 18:05:13,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-21 18:05:13,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-21 18:05:13,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-21 18:05:13,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-21 18:05:13,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-21 18:05:13,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-21 18:05:13,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-21 18:05:13,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-21 18:05:13,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-21 18:05:13,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-21 18:05:13,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-21 18:05:13,427 INFO L153 SettingsManager]: * Use SBE=true [2024-10-21 18:05:13,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-21 18:05:13,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-21 18:05:13,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-21 18:05:13,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-21 18:05:13,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-21 18:05:13,430 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-21 18:05:13,430 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-21 18:05:13,430 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-21 18:05:13,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-21 18:05:13,435 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-21 18:05:13,435 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-21 18:05:13,447 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-21 18:05:13,447 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-21 18:05:13,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-21 18:05:13,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-21 18:05:13,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-21 18:05:13,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-21 18:05:13,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-21 18:05:13,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:13,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-21 18:05:13,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-21 18:05:13,449 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-21 18:05:13,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-21 18:05:13,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-21 18:05:13,449 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-21 18:05:13,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-21 18:05:13,450 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-21 18:05:13,450 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-21 18:05:13,455 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:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a0bf8c242a99657d9f82417f2e30c672800a0a11b8b06555f607ba068bef519 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2024-10-21 18:05:13,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-21 18:05:13,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-21 18:05:13,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-21 18:05:13,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-21 18:05:13,744 INFO L274 PluginConnector]: CDTParser initialized [2024-10-21 18:05:13,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind1-nondet.i [2024-10-21 18:05:15,094 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-21 18:05:15,320 INFO L384 CDTParser]: Found 1 translation units. [2024-10-21 18:05:15,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind1-nondet.i [2024-10-21 18:05:15,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bd3dfa61e/fbbe309fbec548e4b375349e6a3af9fc/FLAG15d654153 [2024-10-21 18:05:15,668 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bd3dfa61e/fbbe309fbec548e4b375349e6a3af9fc [2024-10-21 18:05:15,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-21 18:05:15,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-21 18:05:15,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:15,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-21 18:05:15,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-21 18:05:15,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:15" (1/1) ... [2024-10-21 18:05:15,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47536195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:15, skipping insertion in model container [2024-10-21 18:05:15,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:15" (1/1) ... [2024-10-21 18:05:15,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-21 18:05:16,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:16,021 INFO L200 MainTranslator]: Completed pre-run [2024-10-21 18:05:16,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:16,108 INFO L204 MainTranslator]: Completed translation [2024-10-21 18:05:16,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16 WrapperNode [2024-10-21 18:05:16,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:16,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:16,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-21 18:05:16,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-21 18:05:16,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,148 INFO L138 Inliner]: procedures = 168, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-10-21 18:05:16,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:16,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-21 18:05:16,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-21 18:05:16,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-21 18:05:16,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-21 18:05:16,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-21 18:05:16,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-21 18:05:16,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-21 18:05:16,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (1/1) ... [2024-10-21 18:05:16,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:16,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:16,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:16,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-21 18:05:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-21 18:05:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-21 18:05:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-21 18:05:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-21 18:05:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-21 18:05:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-21 18:05:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-21 18:05:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-21 18:05:16,265 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-21 18:05:16,418 INFO L238 CfgBuilder]: Building ICFG [2024-10-21 18:05:16,420 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-21 18:05:16,580 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-21 18:05:16,582 INFO L287 CfgBuilder]: Performing block encoding [2024-10-21 18:05:16,598 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-21 18:05:16,599 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-21 18:05:16,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:16 BoogieIcfgContainer [2024-10-21 18:05:16,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-21 18:05:16,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-21 18:05:16,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-21 18:05:16,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-21 18:05:16,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 06:05:15" (1/3) ... [2024-10-21 18:05:16,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64663448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:16, skipping insertion in model container [2024-10-21 18:05:16,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:16" (2/3) ... [2024-10-21 18:05:16,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64663448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:16, skipping insertion in model container [2024-10-21 18:05:16,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:16" (3/3) ... [2024-10-21 18:05:16,611 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-nondet.i [2024-10-21 18:05:16,628 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-21 18:05:16,628 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-21 18:05:16,629 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-21 18:05:16,703 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-21 18:05:16,751 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:16,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 18:05:16,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:16,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:16,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-21 18:05:16,794 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 18:05:16,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-10-21 18:05:16,811 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=None, 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;@1e6c3216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:16,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-21 18:05:17,019 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [f2Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-21 18:05:17,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 18:05:17,030 INFO L85 PathProgramCache]: Analyzing trace with hash 994720743, now seen corresponding path program 1 times [2024-10-21 18:05:17,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 18:05:17,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868979148] [2024-10-21 18:05:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 18:05:17,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 18:05:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:17,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 18:05:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:17,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 18:05:17,206 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 18:05:17,207 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-10-21 18:05:17,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-21 18:05:17,215 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-21 18:05:17,217 INFO L312 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE (1/2) [2024-10-21 18:05:17,284 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-21 18:05:17,284 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-21 18:05:17,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 06:05:17 BasicIcfg [2024-10-21 18:05:17,287 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-21 18:05:17,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-21 18:05:17,288 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-21 18:05:17,288 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-21 18:05:17,291 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:16" (3/4) ... [2024-10-21 18:05:17,293 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-21 18:05:17,294 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-21 18:05:17,295 INFO L158 Benchmark]: Toolchain (without parser) took 1623.50ms. Allocated memory is still 178.3MB. Free memory was 126.4MB in the beginning and 144.7MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:17,296 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:17,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.56ms. Allocated memory is still 178.3MB. Free memory was 125.7MB in the beginning and 103.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-21 18:05:17,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.25ms. Allocated memory is still 178.3MB. Free memory was 103.8MB in the beginning and 101.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 18:05:17,300 INFO L158 Benchmark]: Boogie Preprocessor took 20.91ms. Allocated memory is still 178.3MB. Free memory was 101.9MB in the beginning and 100.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 18:05:17,300 INFO L158 Benchmark]: RCFGBuilder took 429.86ms. Allocated memory is still 178.3MB. Free memory was 100.5MB in the beginning and 87.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-21 18:05:17,300 INFO L158 Benchmark]: TraceAbstraction took 684.05ms. Allocated memory is still 178.3MB. Free memory was 86.6MB in the beginning and 145.4MB in the end (delta: -58.8MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2024-10-21 18:05:17,303 INFO L158 Benchmark]: Witness Printer took 6.02ms. Allocated memory is still 178.3MB. Free memory was 145.4MB in the beginning and 144.7MB in the end (delta: 696.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:17,305 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.56ms. Allocated memory is still 178.3MB. Free memory was 125.7MB in the beginning and 103.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.25ms. Allocated memory is still 178.3MB. Free memory was 103.8MB in the beginning and 101.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.91ms. Allocated memory is still 178.3MB. Free memory was 101.9MB in the beginning and 100.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.86ms. Allocated memory is still 178.3MB. Free memory was 100.5MB in the beginning and 87.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 684.05ms. Allocated memory is still 178.3MB. Free memory was 86.6MB in the beginning and 145.4MB in the end (delta: -58.8MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Witness Printer took 6.02ms. Allocated memory is still 178.3MB. Free memory was 145.4MB in the beginning and 144.7MB in the end (delta: 696.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: IndependenceRelationWithAbstraction.Independence Queries: [ total: 738, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 5, dependent conditional: 3, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 738, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 5, dependent conditional: 3, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 735, independent: 733, independent conditional: 0, independent unconditional: 733, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 0, independent unconditional: 733, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 667, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 667, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 735, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 667, unknown conditional: 0, unknown unconditional: 667] , Statistics on independence cache: Total cache size (in pairs): 667, Positive cache size: 665, Positive conditional cache size: 0, Positive unconditional cache size: 665, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 62, Maximal queried relation: 0, Independence queries for same thread: 3, Statistics for Abstraction: , Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 43, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 673, independent: 671, independent conditional: 0, independent unconditional: 671, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 738, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 5, dependent conditional: 3, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 738, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 5, dependent conditional: 3, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 62, independent unconditional: 671, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 735, independent: 733, independent conditional: 0, independent unconditional: 733, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 735, independent: 733, independent conditional: 0, independent unconditional: 733, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 667, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 667, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 735, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 667, unknown conditional: 0, unknown unconditional: 667] , Statistics on independence cache: Total cache size (in pairs): 667, Positive cache size: 665, Positive conditional cache size: 0, Positive unconditional cache size: 665, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 62, Maximal queried relation: 0, Independence queries for same thread: 3, Statistics for Abstraction: - UnprovableResult [Line: 749]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 749. Possible FailurePath: [L751] 0 int _N; VAL [_N=0] [L752] 0 atomic_int limit; VAL [_N=0, limit=0] [L769] 0 _N = __VERIFIER_nondet_int() VAL [_N=-1, limit=0] [L770] 0 pthread_t t1, t2; VAL [_N=-1, limit=0] [L771] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [\old(arg)={0:0}, _N=-1, limit=0, t1=-1] [L772] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [\old(arg)={0:0}, _N=-1, limit=0, t1=-1, t2=0] [L762] 2 int i, bound; VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-1, arg={0:0}, limit=0] [L763] 2 bound = limit VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-1, arg={0:0}, bound=0, limit=0] [L764] 2 i = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-1, arg={0:0}, bound=0, i=0, limit=0] [L764] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-1, arg={0:0}, bound=0, i=0, limit=0] [L765] CALL 2 __VERIFIER_assert(i <= _N) [L750] COND TRUE 2 !expression VAL [\old(arg)={0:0}, \old(expression)=0, _N=-1, expression=0, limit=0] [L750] CALL 2 reach_error() [L749] COND FALSE 2 !(0) VAL [\old(arg)={0:0}, _N=-1, limit=0] [L749] 2 __assert_fail ("0", "generated/unwind1.h", 7, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, _N=-1, limit=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 111 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-21 18:05:17,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-21 18:05:17,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-theta/unwind1-nondet.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a0bf8c242a99657d9f82417f2e30c672800a0a11b8b06555f607ba068bef519 --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.theta-eval-2e5b835-m [2024-10-21 18:05:19,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-21 18:05:19,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-10-21 18:05:19,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-21 18:05:19,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-21 18:05:19,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-21 18:05:19,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-21 18:05:19,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-21 18:05:19,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-21 18:05:19,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-21 18:05:19,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-21 18:05:19,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-21 18:05:19,811 INFO L153 SettingsManager]: * Use SBE=true [2024-10-21 18:05:19,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-21 18:05:19,812 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-21 18:05:19,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-21 18:05:19,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-21 18:05:19,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-21 18:05:19,813 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-21 18:05:19,813 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-21 18:05:19,815 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-21 18:05:19,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-21 18:05:19,816 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-21 18:05:19,816 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-21 18:05:19,816 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-21 18:05:19,817 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-21 18:05:19,817 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-21 18:05:19,817 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-21 18:05:19,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-21 18:05:19,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-21 18:05:19,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-21 18:05:19,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-21 18:05:19,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-21 18:05:19,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:19,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-21 18:05:19,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-21 18:05:19,818 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-21 18:05:19,819 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-21 18:05:19,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-21 18:05:19,819 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-21 18:05:19,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-21 18:05:19,823 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-21 18:05:19,823 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-21 18:05:19,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-21 18:05:19,823 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a0bf8c242a99657d9f82417f2e30c672800a0a11b8b06555f607ba068bef519 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2024-10-21 18:05:20,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-21 18:05:20,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-21 18:05:20,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-21 18:05:20,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-21 18:05:20,142 INFO L274 PluginConnector]: CDTParser initialized [2024-10-21 18:05:20,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind1-nondet.i [2024-10-21 18:05:21,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-21 18:05:21,792 INFO L384 CDTParser]: Found 1 translation units. [2024-10-21 18:05:21,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind1-nondet.i [2024-10-21 18:05:21,809 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/67f0a5671/73a3787475cd4a8ba34e8f73604efeec/FLAGc64c6fd23 [2024-10-21 18:05:21,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/67f0a5671/73a3787475cd4a8ba34e8f73604efeec [2024-10-21 18:05:21,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-21 18:05:21,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-21 18:05:21,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:21,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-21 18:05:21,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-21 18:05:21,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:21" (1/1) ... [2024-10-21 18:05:21,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5829468a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:21, skipping insertion in model container [2024-10-21 18:05:21,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:21" (1/1) ... [2024-10-21 18:05:21,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-21 18:05:22,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:22,271 INFO L200 MainTranslator]: Completed pre-run [2024-10-21 18:05:22,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:22,368 INFO L204 MainTranslator]: Completed translation [2024-10-21 18:05:22,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22 WrapperNode [2024-10-21 18:05:22,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:22,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:22,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-21 18:05:22,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-21 18:05:22,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,433 INFO L138 Inliner]: procedures = 169, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-10-21 18:05:22,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:22,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-21 18:05:22,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-21 18:05:22,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-21 18:05:22,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-21 18:05:22,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-21 18:05:22,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-21 18:05:22,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-21 18:05:22,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (1/1) ... [2024-10-21 18:05:22,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:22,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:22,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:22,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-21 18:05:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-21 18:05:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-21 18:05:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-21 18:05:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-21 18:05:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-21 18:05:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-21 18:05:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-21 18:05:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-21 18:05:22,591 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-21 18:05:22,749 INFO L238 CfgBuilder]: Building ICFG [2024-10-21 18:05:22,751 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-21 18:05:22,895 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-21 18:05:22,896 INFO L287 CfgBuilder]: Performing block encoding [2024-10-21 18:05:22,908 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-21 18:05:22,909 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-21 18:05:22,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:22 BoogieIcfgContainer [2024-10-21 18:05:22,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-21 18:05:22,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-21 18:05:22,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-21 18:05:22,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-21 18:05:22,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 06:05:21" (1/3) ... [2024-10-21 18:05:22,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a1306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:22, skipping insertion in model container [2024-10-21 18:05:22,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:22" (2/3) ... [2024-10-21 18:05:22,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a1306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:22, skipping insertion in model container [2024-10-21 18:05:22,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:22" (3/3) ... [2024-10-21 18:05:22,918 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-nondet.i [2024-10-21 18:05:22,932 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-21 18:05:22,933 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-21 18:05:22,933 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-21 18:05:23,021 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-21 18:05:23,063 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:23,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 18:05:23,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:23,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:23,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-21 18:05:23,112 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 18:05:23,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-10-21 18:05:23,130 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=None, 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;@1e37f723, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:23,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-21 18:05:23,353 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [f2Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-21 18:05:23,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 18:05:23,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1655694998, now seen corresponding path program 1 times [2024-10-21 18:05:23,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-21 18:05:23,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687380772] [2024-10-21 18:05:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 18:05:23,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-21 18:05:23,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-21 18:05:23,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-21 18:05:23,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-21 18:05:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:23,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 18:05:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:23,544 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-21 18:05:23,546 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 18:05:23,547 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-10-21 18:05:23,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-21 18:05:23,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-21 18:05:23,758 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-21 18:05:23,768 INFO L312 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE (1/2) [2024-10-21 18:05:23,800 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-21 18:05:23,800 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-21 18:05:23,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 06:05:23 BasicIcfg [2024-10-21 18:05:23,803 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-21 18:05:23,804 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-21 18:05:23,804 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-21 18:05:23,804 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-21 18:05:23,805 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:22" (3/4) ... [2024-10-21 18:05:23,806 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-21 18:05:23,807 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-21 18:05:23,808 INFO L158 Benchmark]: Toolchain (without parser) took 1982.23ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 34.2MB in the beginning and 65.5MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:23,809 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory is still 24.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:23,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.04ms. Allocated memory is still 75.5MB. Free memory was 34.1MB in the beginning and 53.7MB in the end (delta: -19.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-10-21 18:05:23,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.84ms. Allocated memory is still 75.5MB. Free memory was 53.7MB in the beginning and 51.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 18:05:23,811 INFO L158 Benchmark]: Boogie Preprocessor took 45.63ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 50.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:23,811 INFO L158 Benchmark]: RCFGBuilder took 428.09ms. Allocated memory is still 75.5MB. Free memory was 50.0MB in the beginning and 36.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-21 18:05:23,813 INFO L158 Benchmark]: TraceAbstraction took 891.77ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 35.7MB in the beginning and 66.1MB in the end (delta: -30.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-10-21 18:05:23,814 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 65.5MB in the end (delta: 529.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:23,815 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 48.2MB. Free memory is still 24.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.04ms. Allocated memory is still 75.5MB. Free memory was 34.1MB in the beginning and 53.7MB in the end (delta: -19.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.84ms. Allocated memory is still 75.5MB. Free memory was 53.7MB in the beginning and 51.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.63ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 50.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.09ms. Allocated memory is still 75.5MB. Free memory was 50.0MB in the beginning and 36.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 891.77ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 35.7MB in the beginning and 66.1MB in the end (delta: -30.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 65.5MB in the end (delta: 529.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: IndependenceRelationWithAbstraction.Independence Queries: [ total: 709, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 709, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 705, independent: 703, independent conditional: 0, independent unconditional: 703, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 0, independent unconditional: 703, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 637, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 637, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 705, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 637, unknown conditional: 0, unknown unconditional: 637] , Statistics on independence cache: Total cache size (in pairs): 637, Positive cache size: 635, Positive conditional cache size: 0, Positive unconditional cache size: 635, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 62, Maximal queried relation: 0, Independence queries for same thread: 4, Statistics for Abstraction: , Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 43, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 643, independent: 641, independent conditional: 0, independent unconditional: 641, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 709, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 709, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 62, independent unconditional: 641, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 705, independent: 703, independent conditional: 0, independent unconditional: 703, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 705, independent: 703, independent conditional: 0, independent unconditional: 703, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 637, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 637, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 705, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 637, unknown conditional: 0, unknown unconditional: 637] , Statistics on independence cache: Total cache size (in pairs): 637, Positive cache size: 635, Positive conditional cache size: 0, Positive unconditional cache size: 635, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 62, Maximal queried relation: 0, Independence queries for same thread: 4, Statistics for Abstraction: - UnprovableResult [Line: 749]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 749. Possible FailurePath: [L751] 0 int _N; VAL [_N=0] [L752] 0 atomic_int limit; VAL [_N=0, limit=0] [L769] 0 _N = __VERIFIER_nondet_int() VAL [_N=-2147483648, limit=0] [L770] 0 pthread_t t1, t2; VAL [_N=-2147483648, limit=0] [L771] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [\old(arg)={0:0}, _N=-2147483648, limit=0, t1=0] [L772] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [\old(arg)={0:0}, _N=-2147483648, limit=0, t1=0, t2=1] [L762] 2 int i, bound; VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-2147483648, arg={0:0}, limit=0] [L763] 2 bound = limit VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-2147483648, arg={0:0}, bound=0, limit=0] [L764] 2 i = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-2147483648, arg={0:0}, bound=0, i=0, limit=0] [L764] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=-2147483648, arg={0:0}, bound=0, i=0, limit=0] [L765] CALL 2 __VERIFIER_assert(i <= _N) [L750] COND TRUE 2 !expression VAL [\old(arg)={0:0}, \old(expression)=0, _N=-2147483648, expression=0, limit=0] [L750] CALL 2 reach_error() [L749] COND FALSE 2 !(0) VAL [\old(arg)={0:0}, _N=-2147483648, limit=0] [L749] 2 __assert_fail ("0", "generated/unwind1.h", 7, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, _N=-2147483648, limit=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 109 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-21 18:05:23,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-21 18:05:24,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample