./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/reorder_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a849f68 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/reorder_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 06:25:01,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 06:25:01,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-26 06:25:01,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 06:25:01,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 06:25:01,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 06:25:01,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 06:25:01,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 06:25:01,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 06:25:01,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 06:25:01,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 06:25:01,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 06:25:01,432 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 06:25:01,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 06:25:01,432 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 06:25:01,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 06:25:01,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 06:25:01,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 06:25:01,435 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 06:25:01,435 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 06:25:01,435 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 06:25:01,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 06:25:01,437 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 06:25:01,438 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 06:25:01,438 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 06:25:01,438 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 06:25:01,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 06:25:01,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 06:25:01,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 06:25:01,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 06:25:01,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 06:25:01,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 06:25:01,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 06:25:01,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 06:25:01,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-26 06:25:01,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-26 06:25:01,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 06:25:01,440 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 06:25:01,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 06:25:01,441 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 06:25:01,441 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 06:25:01,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 [2024-10-26 06:25:01,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 06:25:01,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 06:25:01,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 06:25:01,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 06:25:01,748 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 06:25:01,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/reorder_2-2.i [2024-10-26 06:25:03,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 06:25:03,660 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 06:25:03,660 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2-2.i [2024-10-26 06:25:03,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/46ad8eff4/8fd82986d0e94cb59ee2953e43e5485f/FLAG73113a30a [2024-10-26 06:25:03,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/46ad8eff4/8fd82986d0e94cb59ee2953e43e5485f [2024-10-26 06:25:03,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 06:25:03,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 06:25:03,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 06:25:03,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 06:25:03,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 06:25:03,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:25:03" (1/1) ... [2024-10-26 06:25:03,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c503d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:03, skipping insertion in model container [2024-10-26 06:25:03,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:25:03" (1/1) ... [2024-10-26 06:25:04,028 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 06:25:04,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 06:25:04,632 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 06:25:04,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 06:25:04,811 INFO L204 MainTranslator]: Completed translation [2024-10-26 06:25:04,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04 WrapperNode [2024-10-26 06:25:04,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 06:25:04,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 06:25:04,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 06:25:04,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 06:25:04,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,891 INFO L138 Inliner]: procedures = 372, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 137 [2024-10-26 06:25:04,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 06:25:04,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 06:25:04,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 06:25:04,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 06:25:04,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 06:25:04,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 06:25:04,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 06:25:04,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 06:25:04,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (1/1) ... [2024-10-26 06:25:04,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 06:25:04,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 06:25:04,974 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) [2024-10-26 06:25:04,983 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 [2024-10-26 06:25:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-26 06:25:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-26 06:25:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-26 06:25:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-26 06:25:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-26 06:25:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-26 06:25:05,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-26 06:25:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-26 06:25:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 06:25:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-26 06:25:05,029 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-26 06:25:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-26 06:25:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 06:25:05,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 06:25:05,031 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-26 06:25:05,159 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 06:25:05,161 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 06:25:05,451 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 06:25:05,451 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 06:25:05,558 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 06:25:05,558 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-26 06:25:05,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:25:05 BoogieIcfgContainer [2024-10-26 06:25:05,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 06:25:05,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 06:25:05,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 06:25:05,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 06:25:05,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 06:25:03" (1/3) ... [2024-10-26 06:25:05,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4644f662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:25:05, skipping insertion in model container [2024-10-26 06:25:05,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:04" (2/3) ... [2024-10-26 06:25:05,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4644f662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:25:05, skipping insertion in model container [2024-10-26 06:25:05,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:25:05" (3/3) ... [2024-10-26 06:25:05,567 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i [2024-10-26 06:25:05,586 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 06:25:05,586 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-26 06:25:05,586 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 06:25:05,639 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-26 06:25:05,678 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 06:25:05,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 06:25:05,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 06:25:05,682 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) [2024-10-26 06:25:05,687 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 [2024-10-26 06:25:05,723 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 06:25:05,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2024-10-26 06:25:05,740 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2dc5b1f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 06:25:05,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-26 06:25:06,030 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-26 06:25:06,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 06:25:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash -951092773, now seen corresponding path program 1 times [2024-10-26 06:25:06,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 06:25:06,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949050010] [2024-10-26 06:25:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 06:25:06,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 06:25:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 06:25:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 06:25:06,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 06:25:06,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949050010] [2024-10-26 06:25:06,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949050010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 06:25:06,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 06:25:06,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-26 06:25:06,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335695311] [2024-10-26 06:25:06,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 06:25:06,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-26 06:25:06,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 06:25:06,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-26 06:25:06,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-26 06:25:06,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 06:25:06,499 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 06:25:06,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-26 06:25:06,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 06:25:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 06:25:06,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-26 06:25:06,792 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-26 06:25:06,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 06:25:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1266456981, now seen corresponding path program 1 times [2024-10-26 06:25:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 06:25:06,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495053237] [2024-10-26 06:25:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 06:25:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 06:25:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-26 06:25:06,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-26 06:25:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-26 06:25:06,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-26 06:25:06,906 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-26 06:25:06,907 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-10-26 06:25:06,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-26 06:25:06,919 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-26 06:25:06,921 INFO L312 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was UNSAFE (1/2) [2024-10-26 06:25:06,974 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-26 06:25:06,974 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-26 06:25:06,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 06:25:06 BasicIcfg [2024-10-26 06:25:06,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-26 06:25:06,981 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-26 06:25:06,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-26 06:25:06,981 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-26 06:25:06,981 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:25:05" (3/4) ... [2024-10-26 06:25:06,988 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-26 06:25:06,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-26 06:25:06,990 INFO L158 Benchmark]: Toolchain (without parser) took 3027.18ms. Allocated memory is still 190.8MB. Free memory was 117.9MB in the beginning and 118.5MB in the end (delta: -600.8kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2024-10-26 06:25:06,990 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-26 06:25:06,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.64ms. Allocated memory is still 190.8MB. Free memory was 117.9MB in the beginning and 152.0MB in the end (delta: -34.1MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2024-10-26 06:25:06,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.21ms. Allocated memory is still 190.8MB. Free memory was 152.0MB in the beginning and 148.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-26 06:25:06,991 INFO L158 Benchmark]: Boogie Preprocessor took 37.70ms. Allocated memory is still 190.8MB. Free memory was 148.7MB in the beginning and 147.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-26 06:25:06,991 INFO L158 Benchmark]: RCFGBuilder took 628.60ms. Allocated memory is still 190.8MB. Free memory was 147.6MB in the beginning and 116.3MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-26 06:25:06,992 INFO L158 Benchmark]: TraceAbstraction took 1419.54ms. Allocated memory is still 190.8MB. Free memory was 116.1MB in the beginning and 118.5MB in the end (delta: -2.4MB). Peak memory consumption was 751.0kB. Max. memory is 16.1GB. [2024-10-26 06:25:06,992 INFO L158 Benchmark]: Witness Printer took 8.61ms. Allocated memory is still 190.8MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-26 06:25:06,994 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 848.64ms. Allocated memory is still 190.8MB. Free memory was 117.9MB in the beginning and 152.0MB in the end (delta: -34.1MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.21ms. Allocated memory is still 190.8MB. Free memory was 152.0MB in the beginning and 148.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.70ms. Allocated memory is still 190.8MB. Free memory was 148.7MB in the beginning and 147.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 628.60ms. Allocated memory is still 190.8MB. Free memory was 147.6MB in the beginning and 116.3MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1419.54ms. Allocated memory is still 190.8MB. Free memory was 116.1MB in the beginning and 118.5MB in the end (delta: -2.4MB). Peak memory consumption was 751.0kB. Max. memory is 16.1GB. * Witness Printer took 8.61ms. Allocated memory is still 190.8MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: IndependenceRelationWithAbstraction.Independence Queries: [ total: 974, independent: 961, independent conditional: 45, independent unconditional: 916, dependent: 13, dependent conditional: 7, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 40, dependent conditional: 22, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1860, independent: 597, independent conditional: 0, independent unconditional: 597, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 892, Positive cache size: 886, Positive conditional cache size: 0, Positive unconditional cache size: 886, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 45, Maximal queried relation: 0, Independence queries for same thread: 7, Statistics for Abstraction: , Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 32, Number of trivial persistent sets: 14, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 922, independent: 916, independent conditional: 0, independent unconditional: 916, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 974, independent: 961, independent conditional: 45, independent unconditional: 916, dependent: 13, dependent conditional: 7, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 40, dependent conditional: 22, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1860, independent: 597, independent conditional: 0, independent unconditional: 597, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 892, Positive cache size: 886, Positive conditional cache size: 0, Positive unconditional cache size: 886, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 45, Maximal queried relation: 0, Independence queries for same thread: 7, Statistics for Abstraction: , Independence relation #2 benchmarks: IndependenceRelationWithAbstraction.Independence Queries: [ total: 906, independent: 879, independent conditional: 86, independent unconditional: 793, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 40, dependent conditional: 22, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1860, independent: 597, independent conditional: 0, independent unconditional: 597, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 1259, Positive cache size: 1243, Positive conditional cache size: 0, Positive unconditional cache size: 1243, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 133, Maximal queried relation: 1, Independence queries for same thread: 21, Statistics for Abstraction: , Persistent sets #2 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 46, Number of trivial persistent sets: 22, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 805, independent: 793, independent conditional: 0, independent unconditional: 793, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 906, independent: 879, independent conditional: 86, independent unconditional: 793, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 40, dependent conditional: 22, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1859, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 131, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1860, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1860, independent: 597, independent conditional: 0, independent unconditional: 597, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 1259, Positive cache size: 1243, Positive conditional cache size: 0, Positive unconditional cache size: 1243, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 133, Maximal queried relation: 1, Independence queries for same thread: 21, Statistics for Abstraction: - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of sscanf at line 1254, overapproximation of memtrack at line 20. Possible FailurePath: [L1238] 0 static int iSet = 2; [L1239] 0 static int iCheck = 2; [L1240] 0 static int a = 0; [L1241] 0 static int b = 0; [L1247] 0 int i, err; VAL [\old(argc)=3, \old(argv)={50:52}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1248] COND TRUE 0 argc != 1 VAL [\old(argc)=3, \old(argv)={50:52}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1249] COND FALSE 0 !(argc != 3) VAL [\old(argc)=3, \old(argv)={50:52}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1253] 0 argv[1] [L1254] 0 argv[2] [L1257] 0 pthread_t setPool[iSet]; [L1258] 0 pthread_t checkPool[iCheck]; [L1259] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:52}, a=0, argc=3, b=0, checkPool={6:0}, i=0, iCheck=2, iSet=1, setPool={5:0}] [L1259] COND TRUE 0 i < iSet [L1260] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:52}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={6:0}, i=0, iCheck=2, iSet=1, setPool={5:0}] [L1260] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) [L1260] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1259] 0 i++ VAL [\old(argc)=3, \old(argv)={50:52}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={6:0}, err=0, i=1, iCheck=2, iSet=1, setPool={5:0}] [L1259] COND FALSE 0 !(i < iSet) [L1265] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:52}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={6:0}, err=0, i=0, iCheck=2, iSet=1, setPool={5:0}] [L1265] COND TRUE 0 i < iCheck [L1266-L1267] EXPR, FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:52}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={6:0}, err=0, i=0, iCheck=2, iSet=1, setPool={5:0}] [L1297] 2 int la = a; VAL [\old(param)={0:0}, \old(param)={0:0}, a=0, b=0, iCheck=2, iSet=1, la=0, param={0:0}] [L1266-L1267] EXPR 0 err = pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) [L1266-L1267] COND FALSE 0 !(0 != (err = pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)))) [L1265] 0 i++ VAL [\old(argc)=3, \old(argv)={50:52}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={6:0}, err=0, i=1, iCheck=2, iSet=1, setPool={5:0}] [L1265] COND TRUE 0 i < iCheck [L1266-L1267] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:52}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={6:0}, err=0, i=1, iCheck=2, iSet=1, setPool={5:0}] [L1288] 1 a = 1 VAL [\old(param)={0:0}, a=1, b=0, iCheck=2, iSet=1, param={0:0}] [L1291] 1 b = -1 VAL [\old(param)={0:0}, a=1, b=-1, iCheck=2, iSet=1, param={0:0}] [L1300] 2 int lb = b; VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=-1, iCheck=2, iSet=1, la=0, lb=-1, param={0:0}, param={0:0}] [L1302] COND TRUE 2 ! ((la == 0 && lb == 0) || (la == 1 && lb == -1)) [L1304] CALL 2 reach_error() [L20] COND FALSE 2 !(0) VAL [\old(param)={0:0}, a=1, b=-1, iCheck=2, iSet=1, param={0:0}] [L20] 2 __assert_fail ("0", "reorder_2.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(param)={0:0}, a=1, b=-1, iCheck=2, iSet=1, param={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: checkThreadThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 67 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, 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: 6, 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, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-26 06:25:07,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-26 06:25:07,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/reorder_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 06:25:09,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 06:25:09,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-10-26 06:25:09,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 06:25:09,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 06:25:09,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 06:25:09,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 06:25:09,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 06:25:09,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 06:25:09,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 06:25:09,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 06:25:09,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 06:25:09,835 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 06:25:09,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 06:25:09,837 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 06:25:09,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 06:25:09,838 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 06:25:09,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 06:25:09,838 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 06:25:09,839 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 06:25:09,839 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 06:25:09,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 06:25:09,843 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 06:25:09,843 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-26 06:25:09,843 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 06:25:09,844 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-26 06:25:09,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 06:25:09,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 06:25:09,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 06:25:09,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 06:25:09,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 06:25:09,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 06:25:09,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 06:25:09,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 06:25:09,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 06:25:09,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 06:25:09,846 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-26 06:25:09,846 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-26 06:25:09,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 06:25:09,847 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 06:25:09,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 06:25:09,855 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 06:25:09,855 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 06:25:09,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-26 06:25:09,856 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 [2024-10-26 06:25:10,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 06:25:10,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 06:25:10,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 06:25:10,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 06:25:10,208 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 06:25:10,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/reorder_2-2.i [2024-10-26 06:25:11,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 06:25:12,210 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 06:25:12,210 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2-2.i [2024-10-26 06:25:12,240 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/329cda79d/359c74d2c8da4bc1a61a091bb5aff0b1/FLAGba042b035 [2024-10-26 06:25:12,504 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/329cda79d/359c74d2c8da4bc1a61a091bb5aff0b1 [2024-10-26 06:25:12,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 06:25:12,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 06:25:12,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 06:25:12,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 06:25:12,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 06:25:12,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:25:12" (1/1) ... [2024-10-26 06:25:12,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6b51d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:12, skipping insertion in model container [2024-10-26 06:25:12,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:25:12" (1/1) ... [2024-10-26 06:25:12,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 06:25:13,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 06:25:13,221 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 06:25:13,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 06:25:13,396 INFO L204 MainTranslator]: Completed translation [2024-10-26 06:25:13,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13 WrapperNode [2024-10-26 06:25:13,397 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 06:25:13,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 06:25:13,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 06:25:13,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 06:25:13,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,470 INFO L138 Inliner]: procedures = 375, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-10-26 06:25:13,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 06:25:13,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 06:25:13,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 06:25:13,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 06:25:13,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 06:25:13,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 06:25:13,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 06:25:13,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 06:25:13,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (1/1) ... [2024-10-26 06:25:13,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 06:25:13,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 06:25:13,552 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) [2024-10-26 06:25:13,573 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 [2024-10-26 06:25:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-26 06:25:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-26 06:25:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-26 06:25:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-26 06:25:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-26 06:25:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-26 06:25:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-26 06:25:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-26 06:25:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-26 06:25:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 06:25:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-26 06:25:13,621 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-26 06:25:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 06:25:13,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 06:25:13,623 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-26 06:25:13,795 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 06:25:13,797 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 06:25:14,196 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 06:25:14,197 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 06:25:14,390 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 06:25:14,390 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-26 06:25:14,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:25:14 BoogieIcfgContainer [2024-10-26 06:25:14,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 06:25:14,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 06:25:14,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 06:25:14,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 06:25:14,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 06:25:12" (1/3) ... [2024-10-26 06:25:14,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511862bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:25:14, skipping insertion in model container [2024-10-26 06:25:14,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:25:13" (2/3) ... [2024-10-26 06:25:14,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511862bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:25:14, skipping insertion in model container [2024-10-26 06:25:14,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:25:14" (3/3) ... [2024-10-26 06:25:14,401 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i [2024-10-26 06:25:14,418 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 06:25:14,419 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-26 06:25:14,419 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 06:25:14,478 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-26 06:25:14,530 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 06:25:14,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 06:25:14,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 06:25:14,533 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) [2024-10-26 06:25:14,535 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 [2024-10-26 06:25:14,576 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 06:25:14,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2024-10-26 06:25:14,597 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7aa7341d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 06:25:14,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-26 06:25:14,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-26 06:25:14,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 06:25:14,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1824176293, now seen corresponding path program 1 times [2024-10-26 06:25:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 06:25:14,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009121951] [2024-10-26 06:25:14,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 06:25:14,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-26 06:25:14,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 06:25:14,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-26 06:25:14,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-26 06:25:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 06:25:15,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-26 06:25:15,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 06:25:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 06:25:15,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 06:25:15,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 06:25:15,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009121951] [2024-10-26 06:25:15,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009121951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 06:25:15,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 06:25:15,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-26 06:25:15,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926791445] [2024-10-26 06:25:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 06:25:15,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-26 06:25:15,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 06:25:15,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-26 06:25:15,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-26 06:25:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 06:25:15,321 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 06:25:15,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-26 06:25:15,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 06:25:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 06:25:15,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-26 06:25:15,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-26 06:25:15,882 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-26 06:25:15,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 06:25:15,883 INFO L85 PathProgramCache]: Analyzing trace with hash -434547501, now seen corresponding path program 1 times [2024-10-26 06:25:15,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 06:25:15,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37715187] [2024-10-26 06:25:15,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 06:25:15,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-26 06:25:15,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 06:25:15,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-26 06:25:15,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-26 06:25:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-26 06:25:16,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-26 06:25:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-26 06:25:16,169 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-26 06:25:16,170 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-26 06:25:16,171 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-10-26 06:25:16,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-26 06:25:16,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-26 06:25:16,385 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-26 06:25:16,387 INFO L312 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was UNSAFE (1/2) [2024-10-26 06:25:16,442 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-26 06:25:16,443 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-26 06:25:16,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 06:25:16 BasicIcfg [2024-10-26 06:25:16,446 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-26 06:25:16,447 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-26 06:25:16,447 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-26 06:25:16,447 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-26 06:25:16,449 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:25:14" (3/4) ... [2024-10-26 06:25:16,451 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-26 06:25:16,461 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-26 06:25:16,463 INFO L158 Benchmark]: Toolchain (without parser) took 3954.03ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 37.6MB in the beginning and 79.0MB in the end (delta: -41.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-10-26 06:25:16,464 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory is still 27.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-26 06:25:16,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 886.60ms. Allocated memory is still 69.2MB. Free memory was 37.4MB in the beginning and 30.1MB in the end (delta: 7.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-10-26 06:25:16,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.46ms. Allocated memory is still 69.2MB. Free memory was 30.1MB in the beginning and 27.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-26 06:25:16,468 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 69.2MB. Free memory was 27.4MB in the beginning and 25.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-26 06:25:16,468 INFO L158 Benchmark]: RCFGBuilder took 881.19ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 25.2MB in the beginning and 55.5MB in the end (delta: -30.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-10-26 06:25:16,469 INFO L158 Benchmark]: TraceAbstraction took 2051.46ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 39.0MB in the end (delta: 16.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-10-26 06:25:16,469 INFO L158 Benchmark]: Witness Printer took 14.42ms. Allocated memory is still 111.1MB. Free memory was 39.0MB in the beginning and 79.0MB in the end (delta: -40.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-10-26 06:25:16,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory is still 27.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 886.60ms. Allocated memory is still 69.2MB. Free memory was 37.4MB in the beginning and 30.1MB in the end (delta: 7.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.46ms. Allocated memory is still 69.2MB. Free memory was 30.1MB in the beginning and 27.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 69.2MB. Free memory was 27.4MB in the beginning and 25.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 881.19ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 25.2MB in the beginning and 55.5MB in the end (delta: -30.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2051.46ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 39.0MB in the end (delta: 16.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Witness Printer took 14.42ms. Allocated memory is still 111.1MB. Free memory was 39.0MB in the beginning and 79.0MB in the end (delta: -40.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: IndependenceRelationWithAbstraction.Independence Queries: [ total: 974, independent: 961, independent conditional: 45, independent unconditional: 916, dependent: 13, dependent conditional: 7, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 39, dependent conditional: 21, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 229, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1861, independent: 598, independent conditional: 0, independent unconditional: 598, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 892, Positive cache size: 886, Positive conditional cache size: 0, Positive unconditional cache size: 886, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 45, Maximal queried relation: 0, Independence queries for same thread: 7, Statistics for Abstraction: , Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 32, Number of trivial persistent sets: 14, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 922, independent: 916, independent conditional: 0, independent unconditional: 916, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 974, independent: 961, independent conditional: 45, independent unconditional: 916, dependent: 13, dependent conditional: 7, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 39, dependent conditional: 21, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 229, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1861, independent: 598, independent conditional: 0, independent unconditional: 598, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 892, Positive cache size: 886, Positive conditional cache size: 0, Positive unconditional cache size: 886, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 45, Maximal queried relation: 0, Independence queries for same thread: 7, Statistics for Abstraction: , Independence relation #2 benchmarks: IndependenceRelationWithAbstraction.Independence Queries: [ total: 906, independent: 880, independent conditional: 87, independent unconditional: 793, dependent: 26, dependent conditional: 14, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 39, dependent conditional: 21, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 229, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1861, independent: 598, independent conditional: 0, independent unconditional: 598, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 1259, Positive cache size: 1243, Positive conditional cache size: 0, Positive unconditional cache size: 1243, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 134, Maximal queried relation: 1, Independence queries for same thread: 20, Statistics for Abstraction: , Persistent sets #2 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 46, Number of trivial persistent sets: 22, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 805, independent: 793, independent conditional: 0, independent unconditional: 793, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 906, independent: 880, independent conditional: 87, independent unconditional: 793, dependent: 26, dependent conditional: 14, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1880, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 39, dependent conditional: 21, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1860, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 132, independent unconditional: 1709, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1861, independent: 1841, independent conditional: 0, independent unconditional: 1841, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1259, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1259, independent: 1241, independent conditional: 0, independent unconditional: 1241, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 229, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1861, independent: 598, independent conditional: 0, independent unconditional: 598, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1259, unknown conditional: 0, unknown unconditional: 1259] , Statistics on independence cache: Total cache size (in pairs): 1259, Positive cache size: 1243, Positive conditional cache size: 0, Positive unconditional cache size: 1243, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 134, Maximal queried relation: 1, Independence queries for same thread: 20, Statistics for Abstraction: - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of sscanf at line 1254, overapproximation of memtrack at line 20. Possible FailurePath: [L1238] 0 static int iSet = 2; [L1239] 0 static int iCheck = 2; [L1240] 0 static int a = 0; [L1241] 0 static int b = 0; [L1247] 0 int i, err; VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1248] COND TRUE 0 argc != 1 VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1249] COND FALSE 0 !(argc != 3) VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1253] 0 argv[1] [L1254] 0 argv[2] [L1257] 0 pthread_t setPool[iSet]; [L1258] 0 pthread_t checkPool[iCheck]; [L1259] 0 i = 0 VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=536870912, iSet=1, setPool={3:0}] [L1259] COND TRUE 0 i < iSet [L1260] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={7:6}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=536870912, iSet=1, setPool={3:0}] [L1260] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) [L1260] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1259] 0 i++ VAL [\old(argc)=3, \old(argv)={7:6}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, err=0, i=1, iCheck=536870912, iSet=1, setPool={3:0}] [L1259] COND FALSE 0 !(i < iSet) [L1265] 0 i = 0 VAL [\old(argc)=3, \old(argv)={7:6}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, err=0, i=0, iCheck=536870912, iSet=1, setPool={3:0}] [L1265] COND TRUE 0 i < iCheck [L1266-L1267] EXPR, FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={7:6}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, err=0, i=0, iCheck=536870912, iSet=1, setPool={3:0}] [L1297] 2 int la = a; VAL [\old(param)={0:0}, \old(param)={0:0}, a=0, b=0, iCheck=536870912, iSet=1, la=0, param={0:0}] [L1266-L1267] EXPR 0 err = pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) [L1266-L1267] COND FALSE 0 !(0 != (err = pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)))) [L1265] 0 i++ VAL [\old(argc)=3, \old(argv)={7:6}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, err=0, i=1, iCheck=536870912, iSet=1, setPool={3:0}] [L1265] COND TRUE 0 i < iCheck [L1266-L1267] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={7:6}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, err=0, i=1, iCheck=536870912, iSet=1, setPool={3:0}] [L1288] 1 a = 1 VAL [\old(param)={0:0}, a=1, b=0, iCheck=536870912, iSet=1, param={0:0}] [L1291] 1 b = -1 VAL [\old(param)={0:0}, a=1, b=-1, iCheck=536870912, iSet=1, param={0:0}] [L1300] 2 int lb = b; VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=-1, iCheck=536870912, iSet=1, la=0, lb=-1, param={0:0}, param={0:0}] [L1302] COND TRUE 2 ! ((la == 0 && lb == 0) || (la == 1 && lb == -1)) [L1304] CALL 2 reach_error() [L20] COND FALSE 2 !(0) VAL [\old(param)={0:0}, a=1, b=-1, iCheck=536870912, iSet=1, param={0:0}] [L20] 2 __assert_fail ("0", "reorder_2.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(param)={0:0}, a=1, b=-1, iCheck=536870912, iSet=1, param={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: checkThreadThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 67 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.7s, 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: 6, 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, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 2 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-26 06:25:16,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-26 06:25:16,708 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 Result: UNKNOWN: Overapproximated counterexample