./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-theta/unwind3-nondet.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/unwind3-nondet.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 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 --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 19:29:19,476 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-21 19:29:19,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-21 19:29:19,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-21 19:29:19,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-21 19:29:19,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-21 19:29:19,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-21 19:29:19,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-21 19:29:19,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-21 19:29:19,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-21 19:29:19,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-21 19:29:19,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-21 19:29:19,600 INFO L153 SettingsManager]: * Use SBE=true [2024-10-21 19:29:19,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-21 19:29:19,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-21 19:29:19,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-21 19:29:19,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-21 19:29:19,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-21 19:29:19,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-21 19:29:19,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-21 19:29:19,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-21 19:29:19,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-21 19:29:19,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-21 19:29:19,605 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-21 19:29:19,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-21 19:29:19,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-21 19:29:19,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-21 19:29:19,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-21 19:29:19,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-21 19:29:19,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-21 19:29:19,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 19:29:19,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-21 19:29:19,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-21 19:29:19,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-21 19:29:19,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-21 19:29:19,609 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-21 19:29:19,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-21 19:29:19,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-21 19:29:19,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-21 19:29:19,610 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-21 19:29:19,610 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-21 19:29:19,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2024-10-21 19:29:19,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-21 19:29:19,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-21 19:29:19,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-21 19:29:19,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-21 19:29:19,879 INFO L274 PluginConnector]: CDTParser initialized [2024-10-21 19:29:19,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind3-nondet.i [2024-10-21 19:29:21,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-21 19:29:21,511 INFO L384 CDTParser]: Found 1 translation units. [2024-10-21 19:29:21,512 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind3-nondet.i [2024-10-21 19:29:21,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f67225164/c58df61ab88f48779b354024ec94a06e/FLAG979b67abd [2024-10-21 19:29:21,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f67225164/c58df61ab88f48779b354024ec94a06e [2024-10-21 19:29:21,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-21 19:29:21,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-21 19:29:21,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-21 19:29:21,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-21 19:29:21,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-21 19:29:21,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:21" (1/1) ... [2024-10-21 19:29:21,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718a08d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:21, skipping insertion in model container [2024-10-21 19:29:21,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:21" (1/1) ... [2024-10-21 19:29:21,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-21 19:29:22,202 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/unwind3-nondet.i[33026,33039] [2024-10-21 19:29:22,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 19:29:22,234 INFO L200 MainTranslator]: Completed pre-run [2024-10-21 19:29:22,286 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/unwind3-nondet.i[33026,33039] [2024-10-21 19:29:22,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 19:29:22,336 INFO L204 MainTranslator]: Completed translation [2024-10-21 19:29:22,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22 WrapperNode [2024-10-21 19:29:22,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-21 19:29:22,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-21 19:29:22,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-21 19:29:22,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-21 19:29:22,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,382 INFO L138 Inliner]: procedures = 169, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-10-21 19:29:22,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-21 19:29:22,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-21 19:29:22,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-21 19:29:22,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-21 19:29:22,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-21 19:29:22,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-21 19:29:22,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-21 19:29:22,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-21 19:29:22,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2024-10-21 19:29:22,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 19:29:22,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:29:22,449 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 19:29:22,452 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 19:29:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-21 19:29:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-21 19:29:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-21 19:29:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-21 19:29:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-21 19:29:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-21 19:29:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-21 19:29:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-21 19:29:22,500 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 19:29:22,613 INFO L238 CfgBuilder]: Building ICFG [2024-10-21 19:29:22,615 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-21 19:29:22,758 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-21 19:29:22,758 INFO L287 CfgBuilder]: Performing block encoding [2024-10-21 19:29:22,773 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-21 19:29:22,773 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-21 19:29:22,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:22 BoogieIcfgContainer [2024-10-21 19:29:22,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-21 19:29:22,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-21 19:29:22,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-21 19:29:22,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-21 19:29:22,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:29:21" (1/3) ... [2024-10-21 19:29:22,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35446706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:29:22, skipping insertion in model container [2024-10-21 19:29:22,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (2/3) ... [2024-10-21 19:29:22,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35446706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:29:22, skipping insertion in model container [2024-10-21 19:29:22,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:22" (3/3) ... [2024-10-21 19:29:22,783 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-nondet.i [2024-10-21 19:29:22,799 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-21 19:29:22,800 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-21 19:29:22,801 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-21 19:29:22,851 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 19:29:22,894 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:29:22,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 19:29:22,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:29:22,896 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 19:29:22,897 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 19:29:22,927 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 19:29:22,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-10-21 19:29:22,952 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;@29499593, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:29:22,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-21 19:29:23,369 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 19:29:23,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:29:23,375 INFO L85 PathProgramCache]: Analyzing trace with hash -385478147, now seen corresponding path program 1 times [2024-10-21 19:29:23,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:29:23,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598968524] [2024-10-21 19:29:23,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:29:23,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:29:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:29:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-21 19:29:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:29:23,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598968524] [2024-10-21 19:29:23,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598968524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:29:23,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 19:29:23,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-21 19:29:23,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819344233] [2024-10-21 19:29:23,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:29:23,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-21 19:29:23,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:29:23,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-21 19:29:23,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-21 19:29:23,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:23,667 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:29:23,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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 19:29:23,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:23,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-21 19:29:23,692 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 19:29:23,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:29:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -89613233, now seen corresponding path program 1 times [2024-10-21 19:29:23,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:29:23,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865833412] [2024-10-21 19:29:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:29:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:29:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:29:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:29:24,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:29:24,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865833412] [2024-10-21 19:29:24,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865833412] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:29:24,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319931119] [2024-10-21 19:29:24,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:29:24,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:29:24,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:29:24,110 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 19:29:24,112 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 19:29:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:29:24,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-21 19:29:24,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:29:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:29:24,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:29:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:29:24,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319931119] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-21 19:29:24,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-21 19:29:24,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 20 [2024-10-21 19:29:24,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112189671] [2024-10-21 19:29:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:29:24,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-21 19:29:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:29:24,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-21 19:29:24,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-21 19:29:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:24,585 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:29:24,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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 19:29:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:24,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-21 19:29:24,768 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 19:29:24,952 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 19:29:24,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 19:29:24,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:29:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash -833257932, now seen corresponding path program 1 times [2024-10-21 19:29:24,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:29:24,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694190598] [2024-10-21 19:29:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:29:24,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:29:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:29:25,243 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 19:29:25,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:29:25,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694190598] [2024-10-21 19:29:25,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694190598] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:29:25,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540250996] [2024-10-21 19:29:25,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:29:25,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:29:25,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:29:25,247 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 19:29:25,249 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 19:29:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:29:25,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-21 19:29:25,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:29:25,541 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 19:29:25,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:29:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:29:25,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540250996] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:29:25,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:29:25,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 24 [2024-10-21 19:29:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139126209] [2024-10-21 19:29:25,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:29:25,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-21 19:29:25,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:29:25,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-21 19:29:25,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2024-10-21 19:29:25,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:25,748 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:29:25,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 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 19:29:25,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:25,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-21 19:29:25,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:29:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-21 19:29:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-21 19:29:26,138 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 19:29:26,322 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 19:29:26,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-21 19:29:26,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:29:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1531241881, now seen corresponding path program 2 times [2024-10-21 19:29:26,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:29:26,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90362629] [2024-10-21 19:29:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:29:26,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:29:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:29:26,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 19:29:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:29:26,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 19:29:26,378 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 19:29:26,380 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-21 19:29:26,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-21 19:29:26,387 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-21 19:29:26,389 INFO L312 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE (1/2) [2024-10-21 19:29:26,457 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-21 19:29:26,458 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-21 19:29:26,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:29:26 BasicIcfg [2024-10-21 19:29:26,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-21 19:29:26,466 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-21 19:29:26,466 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-21 19:29:26,467 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-21 19:29:26,467 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:22" (3/4) ... [2024-10-21 19:29:26,468 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-21 19:29:26,537 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-21 19:29:26,540 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-21 19:29:26,541 INFO L158 Benchmark]: Toolchain (without parser) took 4702.05ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 100.7MB in the beginning and 63.6MB in the end (delta: 37.1MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2024-10-21 19:29:26,541 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 19:29:26,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.71ms. Allocated memory is still 159.4MB. Free memory was 100.7MB in the beginning and 78.3MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-21 19:29:26,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.76ms. Allocated memory is still 159.4MB. Free memory was 78.3MB in the beginning and 76.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 19:29:26,541 INFO L158 Benchmark]: Boogie Preprocessor took 28.62ms. Allocated memory is still 159.4MB. Free memory was 76.3MB in the beginning and 74.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 19:29:26,542 INFO L158 Benchmark]: RCFGBuilder took 360.58ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 74.7MB in the beginning and 186.9MB in the end (delta: -112.1MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-10-21 19:29:26,542 INFO L158 Benchmark]: TraceAbstraction took 3689.69ms. Allocated memory is still 220.2MB. Free memory was 185.8MB in the beginning and 71.0MB in the end (delta: 114.9MB). Peak memory consumption was 112.8MB. Max. memory is 16.1GB. [2024-10-21 19:29:26,542 INFO L158 Benchmark]: Witness Printer took 73.67ms. Allocated memory is still 220.2MB. Free memory was 71.0MB in the beginning and 63.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-21 19:29:26,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.71ms. Allocated memory is still 159.4MB. Free memory was 100.7MB in the beginning and 78.3MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.76ms. Allocated memory is still 159.4MB. Free memory was 78.3MB in the beginning and 76.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.62ms. Allocated memory is still 159.4MB. Free memory was 76.3MB in the beginning and 74.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.58ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 74.7MB in the beginning and 186.9MB in the end (delta: -112.1MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3689.69ms. Allocated memory is still 220.2MB. Free memory was 185.8MB in the beginning and 71.0MB in the end (delta: 114.9MB). Peak memory consumption was 112.8MB. Max. memory is 16.1GB. * Witness Printer took 73.67ms. Allocated memory is still 220.2MB. Free memory was 71.0MB in the beginning and 63.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 651, independent: 603, independent conditional: 86, independent unconditional: 517, dependent: 48, dependent conditional: 46, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 605, independent: 603, independent conditional: 86, independent unconditional: 517, 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: 605, independent: 603, independent conditional: 86, independent unconditional: 517, 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: 605, independent: 603, independent conditional: 86, independent unconditional: 517, 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: 605, independent: 603, independent conditional: 0, independent unconditional: 603, 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: 605, independent: 603, independent conditional: 0, independent unconditional: 603, 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: 519, independent: 517, independent conditional: 0, independent unconditional: 517, 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: 519, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 321, independent: 265, independent conditional: 0, independent unconditional: 265, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 605, independent: 86, independent conditional: 0, independent unconditional: 86, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 519, unknown conditional: 0, unknown unconditional: 519] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 517, Positive conditional cache size: 0, Positive unconditional cache size: 517, 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: 86, Maximal queried relation: 0, Independence queries for same thread: 46, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 73, Number of trivial persistent sets: 68, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 519, independent: 517, independent conditional: 0, independent unconditional: 517, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 651, independent: 603, independent conditional: 86, independent unconditional: 517, dependent: 48, dependent conditional: 46, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 605, independent: 603, independent conditional: 86, independent unconditional: 517, 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: 605, independent: 603, independent conditional: 86, independent unconditional: 517, 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: 605, independent: 603, independent conditional: 86, independent unconditional: 517, 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: 605, independent: 603, independent conditional: 0, independent unconditional: 603, 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: 605, independent: 603, independent conditional: 0, independent unconditional: 603, 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: 519, independent: 517, independent conditional: 0, independent unconditional: 517, 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: 519, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 321, independent: 265, independent conditional: 0, independent unconditional: 265, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 605, independent: 86, independent conditional: 0, independent unconditional: 86, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 519, unknown conditional: 0, unknown unconditional: 519] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 517, Positive conditional cache size: 0, Positive unconditional cache size: 517, 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: 86, Maximal queried relation: 0, Independence queries for same thread: 46 - CounterExampleResult [Line: 753]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L754] 0 int _N; VAL [_N=0] [L755] 0 atomic_int limit; VAL [_N=0, limit=0] [L770] 0 _N = __VERIFIER_nondet_int() VAL [_N=1, limit=0] [L771] CALL 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff / 2) [L750] COND FALSE 0 !(!cond) VAL [\old(cond)=1, _N=1, cond=1, limit=0] [L771] RET 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff / 2) [L772] 0 limit = _N VAL [_N=1, limit=1] [L773] 0 int i = 0; VAL [_N=1, i=0, limit=1] [L773] COND TRUE 0 i < _N VAL [_N=1, i=0, limit=1] [L774] 0 pthread_t t; VAL [_N=1, i=0, limit=1] [L775] FCALL, FORK 0 pthread_create(&t, 0, f1, 0) VAL [\old(arg)={0:0}, _N=1, i=0, limit=1, t=-1] [L757] 1 int l; VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=1] [L758] 1 l = limit VAL [\old(arg)={0:0}, _N=1, arg={0:0}, l=1, limit=1] [L759] 1 limit = l + 1 VAL [\old(arg)={0:0}, _N=1, arg={0:0}, l=1, limit=2] [L760] 1 return 0; VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2] [L773] 0 ++i VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, i=1, l=1, limit=2] [L773] COND FALSE 0 !(i < _N) VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, i=1, l=1, limit=2] [L777] 0 pthread_t t; VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2] [L778] FCALL, FORK 0 pthread_create(&t, 0, f2, 0) VAL [\old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2, t=0] [L763] 2 int i, bound; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, l=1, limit=2] [L764] 2 bound = limit VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, l=1, limit=2] [L765] 2 i = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, l=1, limit=2] [L779] 0 return 0; VAL [\old(arg)={0:0}, \result=0, \result={0:0}, _N=1, arg={0:0}, l=1, limit=2, t=0] [L765] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, l=1, limit=2] [L765] 2 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, l=1, limit=2] [L765] COND TRUE 2 i < bound VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, l=1, limit=2] [L765] 2 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, l=1, limit=2] [L765] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, l=1, limit=2] [L766] CALL 2 __VERIFIER_assert(i != 2 * _N) [L753] COND TRUE 2 !expression VAL [\old(arg)={0:0}, \old(expression)=0, \result={0:0}, _N=1, arg={0:0}, expression=0, l=1, limit=2] [L753] 2 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, \result={0:0}, _N=1, arg={0:0}, expression=0, l=1, limit=2] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.0s, 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: 26, 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, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 454 ConstructedInterpolants, 0 QuantifiedInterpolants, 1291 SizeOfPredicates, 16 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 3/10 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 19:29:26,575 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 19:29:26,784 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE