./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-theta/unwind2-1.i --full-output --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-theta/unwind2-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52d8e4d9f485346d65a40a2d0bfb02aeb17fdb01c212922232a1f3f0f6cd2656 --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 17:28:21,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-21 17:28:21,742 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-21 17:28:21,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-21 17:28:21,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-21 17:28:21,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-21 17:28:21,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-21 17:28:21,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-21 17:28:21,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-21 17:28:21,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-21 17:28:21,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-21 17:28:21,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-21 17:28:21,789 INFO L153 SettingsManager]: * Use SBE=true [2024-10-21 17:28:21,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-21 17:28:21,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-21 17:28:21,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-21 17:28:21,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-21 17:28:21,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-21 17:28:21,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-21 17:28:21,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-21 17:28:21,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-21 17:28:21,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-21 17:28:21,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-21 17:28:21,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-21 17:28:21,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-21 17:28:21,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-21 17:28:21,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-21 17:28:21,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-21 17:28:21,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-21 17:28:21,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-21 17:28:21,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 17:28:21,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-21 17:28:21,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-21 17:28:21,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-21 17:28:21,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-21 17:28:21,800 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-21 17:28:21,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-21 17:28:21,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-21 17:28:21,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-21 17:28:21,801 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-21 17:28:21,801 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-21 17:28:21,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52d8e4d9f485346d65a40a2d0bfb02aeb17fdb01c212922232a1f3f0f6cd2656 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2024-10-21 17:28:22,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-21 17:28:22,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-21 17:28:22,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-21 17:28:22,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-21 17:28:22,088 INFO L274 PluginConnector]: CDTParser initialized [2024-10-21 17:28:22,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind2-1.i [2024-10-21 17:28:23,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-21 17:28:23,743 INFO L384 CDTParser]: Found 1 translation units. [2024-10-21 17:28:23,744 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind2-1.i [2024-10-21 17:28:23,762 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/69a767857/35ed970614d944128fef6d86f186402e/FLAGe355a9767 [2024-10-21 17:28:24,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/69a767857/35ed970614d944128fef6d86f186402e [2024-10-21 17:28:24,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-21 17:28:24,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-21 17:28:24,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-21 17:28:24,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-21 17:28:24,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-21 17:28:24,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5873017f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24, skipping insertion in model container [2024-10-21 17:28:24,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-21 17:28:24,381 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind2-1.i[32963,32976] [2024-10-21 17:28:24,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 17:28:24,409 INFO L200 MainTranslator]: Completed pre-run [2024-10-21 17:28:24,445 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind2-1.i[32963,32976] [2024-10-21 17:28:24,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 17:28:24,484 INFO L204 MainTranslator]: Completed translation [2024-10-21 17:28:24,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24 WrapperNode [2024-10-21 17:28:24,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-21 17:28:24,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-21 17:28:24,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-21 17:28:24,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-21 17:28:24,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,523 INFO L138 Inliner]: procedures = 168, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2024-10-21 17:28:24,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-21 17:28:24,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-21 17:28:24,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-21 17:28:24,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-21 17:28:24,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-21 17:28:24,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-21 17:28:24,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-21 17:28:24,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-21 17:28:24,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (1/1) ... [2024-10-21 17:28:24,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 17:28:24,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 17:28:24,595 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 17:28:24,597 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 17:28:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-21 17:28:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-21 17:28:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-21 17:28:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-21 17:28:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-21 17:28:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-21 17:28:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-21 17:28:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-21 17:28:24,642 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 17:28:24,788 INFO L238 CfgBuilder]: Building ICFG [2024-10-21 17:28:24,791 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-21 17:28:24,936 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-21 17:28:24,936 INFO L287 CfgBuilder]: Performing block encoding [2024-10-21 17:28:24,950 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-21 17:28:24,950 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-21 17:28:24,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 05:28:24 BoogieIcfgContainer [2024-10-21 17:28:24,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-21 17:28:24,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-21 17:28:24,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-21 17:28:24,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-21 17:28:24,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 05:28:24" (1/3) ... [2024-10-21 17:28:24,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4faf428d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 05:28:24, skipping insertion in model container [2024-10-21 17:28:24,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 05:28:24" (2/3) ... [2024-10-21 17:28:24,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4faf428d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 05:28:24, skipping insertion in model container [2024-10-21 17:28:24,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 05:28:24" (3/3) ... [2024-10-21 17:28:24,959 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-1.i [2024-10-21 17:28:24,973 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-21 17:28:24,974 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-21 17:28:24,974 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-21 17:28:25,031 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-21 17:28:25,069 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 17:28:25,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 17:28:25,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 17:28:25,072 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 17:28:25,074 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 17:28:25,102 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 17:28:25,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-10-21 17:28:25,120 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f9d3f20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 17:28:25,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-21 17:28:25,486 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 17:28:25,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 17:28:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1308854471, now seen corresponding path program 1 times [2024-10-21 17:28:25,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 17:28:25,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165590314] [2024-10-21 17:28:25,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 17:28:25,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 17:28:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 17:28:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 17:28:25,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 17:28:25,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165590314] [2024-10-21 17:28:25,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165590314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 17:28:25,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 17:28:25,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-21 17:28:25,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122634088] [2024-10-21 17:28:25,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 17:28:25,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-21 17:28:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 17:28:25,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-21 17:28:25,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-21 17:28:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:25,992 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 17:28:25,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2024-10-21 17:28:25,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-21 17:28:26,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-21 17:28:26,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 17:28:26,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 17:28:26,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1582811473, now seen corresponding path program 1 times [2024-10-21 17:28:26,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 17:28:26,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039462935] [2024-10-21 17:28:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 17:28:26,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 17:28:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 17:28:26,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 17:28:26,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 17:28:26,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039462935] [2024-10-21 17:28:26,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039462935] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 17:28:26,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904827867] [2024-10-21 17:28:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 17:28:26,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 17:28:26,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 17:28:26,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 17:28:26,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-21 17:28:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 17:28:26,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-21 17:28:26,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 17:28:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 17:28:26,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-21 17:28:26,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904827867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 17:28:26,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-21 17:28:26,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-10-21 17:28:26,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418660516] [2024-10-21 17:28:26,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 17:28:26,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-21 17:28:26,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 17:28:26,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-21 17:28:26,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-10-21 17:28:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:26,759 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 17:28:26,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2024-10-21 17:28:26,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-21 17:28:26,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-21 17:28:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-21 17:28:26,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-21 17:28:27,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-21 17:28:27,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 17:28:27,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 17:28:27,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1513560109, now seen corresponding path program 1 times [2024-10-21 17:28:27,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 17:28:27,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414392145] [2024-10-21 17:28:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 17:28:27,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 17:28:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 17:28:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 17:28:27,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 17:28:27,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414392145] [2024-10-21 17:28:27,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414392145] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 17:28:27,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206597155] [2024-10-21 17:28:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 17:28:27,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 17:28:27,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 17:28:27,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 17:28:27,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-21 17:28:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 17:28:27,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-21 17:28:27,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 17:28:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 17:28:27,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 17:28:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 17:28:27,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206597155] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 17:28:27,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 17:28:27,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-10-21 17:28:27,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902270455] [2024-10-21 17:28:27,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 17:28:27,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-21 17:28:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 17:28:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-21 17:28:27,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-21 17:28:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:27,784 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 17:28:27,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.4) internal successors, (111), 15 states have internal predecessors, (111), 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) [2024-10-21 17:28:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-21 17:28:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-21 17:28:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-21 17:28:27,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-21 17:28:27,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-21 17:28:27,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-21 17:28:28,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 17:28:28,169 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 17:28:28,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 17:28:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash 296294008, now seen corresponding path program 2 times [2024-10-21 17:28:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 17:28:28,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876793934] [2024-10-21 17:28:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 17:28:28,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 17:28:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 17:28:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-21 17:28:28,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 17:28:28,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876793934] [2024-10-21 17:28:28,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876793934] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 17:28:28,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469005865] [2024-10-21 17:28:28,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-21 17:28:28,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 17:28:28,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 17:28:28,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 17:28:28,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-21 17:28:28,451 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-21 17:28:28,451 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-21 17:28:28,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-21 17:28:28,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 17:28:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-21 17:28:28,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 17:28:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-21 17:28:29,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469005865] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 17:28:29,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 17:28:29,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 26 [2024-10-21 17:28:29,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628957392] [2024-10-21 17:28:29,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 17:28:29,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-21 17:28:29,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 17:28:29,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-21 17:28:29,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2024-10-21 17:28:29,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:29,238 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 17:28:29,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.5) internal successors, (143), 26 states have internal predecessors, (143), 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) [2024-10-21 17:28:29,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-21 17:28:29,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-21 17:28:29,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-21 17:28:29,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 17:28:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-21 17:28:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-21 17:28:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-21 17:28:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-10-21 17:28:32,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-21 17:28:32,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 17:28:32,882 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 17:28:32,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 17:28:32,882 INFO L85 PathProgramCache]: Analyzing trace with hash 948185693, now seen corresponding path program 1 times [2024-10-21 17:28:32,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 17:28:32,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231437144] [2024-10-21 17:28:32,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 17:28:32,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 17:28:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 17:28:32,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 17:28:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 17:28:32,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 17:28:32,930 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 17:28:32,931 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-21 17:28:32,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-21 17:28:32,939 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-10-21 17:28:32,944 INFO L312 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE (1/3) [2024-10-21 17:28:33,008 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-21 17:28:33,008 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-21 17:28:33,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 05:28:33 BasicIcfg [2024-10-21 17:28:33,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-21 17:28:33,013 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-21 17:28:33,013 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-21 17:28:33,013 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-21 17:28:33,014 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 05:28:24" (3/4) ... [2024-10-21 17:28:33,015 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-21 17:28:33,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-21 17:28:33,095 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-21 17:28:33,095 INFO L158 Benchmark]: Toolchain (without parser) took 9074.57ms. Allocated memory was 182.5MB in the beginning and 253.8MB in the end (delta: 71.3MB). Free memory was 145.9MB in the beginning and 211.6MB in the end (delta: -65.7MB). Peak memory consumption was 152.1MB. Max. memory is 16.1GB. [2024-10-21 17:28:33,096 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 17:28:33,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.76ms. Allocated memory is still 182.5MB. Free memory was 145.9MB in the beginning and 123.4MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-21 17:28:33,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.01ms. Allocated memory is still 182.5MB. Free memory was 123.4MB in the beginning and 121.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 17:28:33,099 INFO L158 Benchmark]: Boogie Preprocessor took 39.33ms. Allocated memory is still 182.5MB. Free memory was 121.3MB in the beginning and 119.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 17:28:33,099 INFO L158 Benchmark]: RCFGBuilder took 386.94ms. Allocated memory is still 182.5MB. Free memory was 119.8MB in the beginning and 106.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-21 17:28:33,099 INFO L158 Benchmark]: TraceAbstraction took 8060.88ms. Allocated memory was 182.5MB in the beginning and 253.8MB in the end (delta: 71.3MB). Free memory was 106.0MB in the beginning and 74.5MB in the end (delta: 31.5MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. [2024-10-21 17:28:33,099 INFO L158 Benchmark]: Witness Printer took 81.73ms. Allocated memory is still 253.8MB. Free memory was 74.5MB in the beginning and 211.6MB in the end (delta: -137.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-10-21 17:28:33,101 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.76ms. Allocated memory is still 182.5MB. Free memory was 145.9MB in the beginning and 123.4MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.01ms. Allocated memory is still 182.5MB. Free memory was 123.4MB in the beginning and 121.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.33ms. Allocated memory is still 182.5MB. Free memory was 121.3MB in the beginning and 119.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.94ms. Allocated memory is still 182.5MB. Free memory was 119.8MB in the beginning and 106.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8060.88ms. Allocated memory was 182.5MB in the beginning and 253.8MB in the end (delta: 71.3MB). Free memory was 106.0MB in the beginning and 74.5MB in the end (delta: 31.5MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. * Witness Printer took 81.73ms. Allocated memory is still 253.8MB. Free memory was 74.5MB in the beginning and 211.6MB in the end (delta: -137.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5910, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 441, dependent conditional: 433, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5480, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5480, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5492, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5492, independent: 5469, independent conditional: 0, independent unconditional: 5469, dependent: 23, dependent conditional: 12, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5492, independent: 5469, independent conditional: 0, independent unconditional: 5469, dependent: 23, dependent conditional: 12, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1637, independent: 1617, independent conditional: 0, independent unconditional: 1617, dependent: 20, dependent conditional: 12, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1637, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 12, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 12, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 338, independent: 128, independent conditional: 0, independent unconditional: 128, dependent: 209, dependent conditional: 67, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5492, independent: 3852, independent conditional: 0, independent unconditional: 3852, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 1637, unknown conditional: 12, unknown unconditional: 1625] , Statistics on independence cache: Total cache size (in pairs): 1637, Positive cache size: 1617, Positive conditional cache size: 0, Positive unconditional cache size: 1617, Negative cache size: 20, Negative conditional cache size: 12, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3744, Maximal queried relation: 4, Independence queries for same thread: 430, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 515, Number of trivial persistent sets: 457, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1736, independent: 1728, independent conditional: 0, independent unconditional: 1728, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5910, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 441, dependent conditional: 433, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5480, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5480, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5492, independent: 5469, independent conditional: 3741, independent unconditional: 1728, dependent: 23, dependent conditional: 15, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5492, independent: 5469, independent conditional: 0, independent unconditional: 5469, dependent: 23, dependent conditional: 12, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5492, independent: 5469, independent conditional: 0, independent unconditional: 5469, dependent: 23, dependent conditional: 12, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1637, independent: 1617, independent conditional: 0, independent unconditional: 1617, dependent: 20, dependent conditional: 12, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1637, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 12, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 12, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 338, independent: 128, independent conditional: 0, independent unconditional: 128, dependent: 209, dependent conditional: 67, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5492, independent: 3852, independent conditional: 0, independent unconditional: 3852, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 1637, unknown conditional: 12, unknown unconditional: 1625] , Statistics on independence cache: Total cache size (in pairs): 1637, Positive cache size: 1617, Positive conditional cache size: 0, Positive unconditional cache size: 1617, Negative cache size: 20, Negative conditional cache size: 12, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3744, Maximal queried relation: 4, Independence queries for same thread: 430 - CounterExampleResult [Line: 750]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L751] 0 int _N; VAL [_N=0] [L752] 0 atomic_int limit; VAL [_N=0, limit=0] [L772] 0 _N = 1 VAL [_N=1, limit=0] [L773] 0 pthread_t t1, t2; VAL [_N=1, limit=0] [L774] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [_N=1, limit=0, t1=-1] [L754] 1 int i, bound; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=0] [L755] 1 int lim = _N; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=1, limit=0] [L775] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [_N=1, limit=0, t1=-1, t2=0] [L763] 2 int i, bound; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=0] [L764] 2 int lim = _N + 1; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=2, limit=0] [L765] 2 limit = lim VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=2, limit=2] [L756] 1 limit = lim VAL [\old(arg)={0:0}, _N=1, arg={0:0}, lim=1, limit=1] [L757] 1 bound = limit VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, lim=1, limit=1] [L758] 1 i = 0 VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=1, limit=1] [L766] 2 bound = limit VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, lim=2, limit=1] [L767] 2 i = 0 VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=2, limit=1] [L758] COND TRUE 1 i < bound VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=1, limit=1] [L758] 1 i++ VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=1, limit=1] [L767] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=0, lim=2, limit=1] [L767] 2 i++ VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=2, limit=1] [L758] COND FALSE 1 !(i < bound) VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=1, limit=1] [L759] CALL 1 __VERIFIER_assert(i == lim) [L750] COND FALSE 1 !(!expression) VAL [\old(expression)=1, _N=1, expression=1, limit=1] [L759] RET 1 __VERIFIER_assert(i == lim) [L760] 1 return 0; VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=1, limit=1] [L776] FCALL, JOIN 1 pthread_join(t1, 0) VAL [_N=1, limit=1, t1=-1, t2=0] [L767] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, _N=1, arg={0:0}, bound=1, i=1, lim=2, limit=1] [L768] CALL 2 __VERIFIER_assert(i == lim) [L750] COND TRUE 2 !expression VAL [\old(expression)=0, _N=1, expression=0, limit=1] [L750] 2 reach_error() VAL [\old(expression)=0, _N=1, expression=0, limit=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 126 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 4.3s, 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: 130, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 2178 SizeOfPredicates, 22 NumberOfNonLiveVariables, 360 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 23/37 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 proved your program to be incorrect! [2024-10-21 17:28:33,133 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 17:28:33,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE