./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-theta/unwind2-nondet.i --full-output --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2e5b835a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-theta/unwind2-nondet.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a5cfd83882a7664c3fd4f1a4e18081e8ded19b8ce4eef96c1e08452494599fb --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.theta-eval-2e5b835-m [2024-10-21 18:05:35,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-21 18:05:36,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-21 18:05:36,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-21 18:05:36,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-21 18:05:36,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-21 18:05:36,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-21 18:05:36,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-21 18:05:36,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-21 18:05:36,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-21 18:05:36,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-21 18:05:36,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-21 18:05:36,094 INFO L153 SettingsManager]: * Use SBE=true [2024-10-21 18:05:36,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-21 18:05:36,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-21 18:05:36,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-21 18:05:36,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-21 18:05:36,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-21 18:05:36,098 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-21 18:05:36,099 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-21 18:05:36,099 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-21 18:05:36,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-21 18:05:36,103 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-21 18:05:36,103 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-21 18:05:36,104 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-21 18:05:36,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-21 18:05:36,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-21 18:05:36,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-21 18:05:36,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-21 18:05:36,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-21 18:05:36,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-21 18:05:36,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:36,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-21 18:05:36,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-21 18:05:36,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-21 18:05:36,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-21 18:05:36,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-21 18:05:36,107 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-21 18:05:36,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-21 18:05:36,108 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-21 18:05:36,108 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-21 18:05:36,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5cfd83882a7664c3fd4f1a4e18081e8ded19b8ce4eef96c1e08452494599fb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2024-10-21 18:05:36,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-21 18:05:36,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-21 18:05:36,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-21 18:05:36,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-21 18:05:36,427 INFO L274 PluginConnector]: CDTParser initialized [2024-10-21 18:05:36,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind2-nondet.i [2024-10-21 18:05:37,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-21 18:05:38,151 INFO L384 CDTParser]: Found 1 translation units. [2024-10-21 18:05:38,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind2-nondet.i [2024-10-21 18:05:38,170 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/73271b9f7/98be23ef92834e07a35948a2a74d0b65/FLAGd13b540a2 [2024-10-21 18:05:38,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/73271b9f7/98be23ef92834e07a35948a2a74d0b65 [2024-10-21 18:05:38,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-21 18:05:38,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-21 18:05:38,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:38,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-21 18:05:38,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-21 18:05:38,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac5287e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38, skipping insertion in model container [2024-10-21 18:05:38,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-21 18:05:38,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:38,699 INFO L200 MainTranslator]: Completed pre-run [2024-10-21 18:05:38,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:38,822 INFO L204 MainTranslator]: Completed translation [2024-10-21 18:05:38,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38 WrapperNode [2024-10-21 18:05:38,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:38,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:38,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-21 18:05:38,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-21 18:05:38,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,884 INFO L138 Inliner]: procedures = 168, calls = 11, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 82 [2024-10-21 18:05:38,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:38,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-21 18:05:38,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-21 18:05:38,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-21 18:05:38,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-21 18:05:38,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-21 18:05:38,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-21 18:05:38,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-21 18:05:38,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (1/1) ... [2024-10-21 18:05:38,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:38,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:38,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:38,983 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 [2024-10-21 18:05:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-21 18:05:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-21 18:05:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-21 18:05:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-21 18:05:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-21 18:05:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-21 18:05:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-21 18:05:39,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-21 18:05:39,048 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-21 18:05:39,173 INFO L238 CfgBuilder]: Building ICFG [2024-10-21 18:05:39,175 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-21 18:05:39,321 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-21 18:05:39,322 INFO L287 CfgBuilder]: Performing block encoding [2024-10-21 18:05:39,335 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-21 18:05:39,336 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-21 18:05:39,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:39 BoogieIcfgContainer [2024-10-21 18:05:39,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-21 18:05:39,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-21 18:05:39,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-21 18:05:39,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-21 18:05:39,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 06:05:38" (1/3) ... [2024-10-21 18:05:39,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea97028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:39, skipping insertion in model container [2024-10-21 18:05:39,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:38" (2/3) ... [2024-10-21 18:05:39,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea97028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:39, skipping insertion in model container [2024-10-21 18:05:39,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:39" (3/3) ... [2024-10-21 18:05:39,348 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-nondet.i [2024-10-21 18:05:39,363 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-21 18:05:39,363 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-21 18:05:39,363 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-21 18:05:39,419 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-21 18:05:39,460 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:39,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 18:05:39,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:39,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:39,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-21 18:05:39,509 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 18:05:39,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-10-21 18:05:39,534 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;@456da5a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:39,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-21 18:05:39,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [f2Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-21 18:05:39,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 18:05:39,816 INFO L85 PathProgramCache]: Analyzing trace with hash 701112820, now seen corresponding path program 1 times [2024-10-21 18:05:39,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 18:05:39,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058612188] [2024-10-21 18:05:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 18:05:39,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 18:05:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:39,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 18:05:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:40,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 18:05:40,048 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 18:05:40,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-10-21 18:05:40,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-21 18:05:40,057 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-21 18:05:40,060 INFO L312 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE (1/3) [2024-10-21 18:05:40,108 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-21 18:05:40,108 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-21 18:05:40,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 06:05:40 BasicIcfg [2024-10-21 18:05:40,113 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-21 18:05:40,113 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-21 18:05:40,114 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-21 18:05:40,114 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-21 18:05:40,114 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:39" (3/4) ... [2024-10-21 18:05:40,118 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-21 18:05:40,120 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-21 18:05:40,121 INFO L158 Benchmark]: Toolchain (without parser) took 1926.97ms. Allocated memory is still 169.9MB. Free memory was 100.8MB in the beginning and 73.6MB in the end (delta: 27.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-10-21 18:05:40,122 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 169.9MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:40,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.69ms. Allocated memory is still 169.9MB. Free memory was 100.6MB in the beginning and 133.3MB in the end (delta: -32.7MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-10-21 18:05:40,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.47ms. Allocated memory is still 169.9MB. Free memory was 133.3MB in the beginning and 131.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 18:05:40,123 INFO L158 Benchmark]: Boogie Preprocessor took 43.06ms. Allocated memory is still 169.9MB. Free memory was 131.2MB in the beginning and 130.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:40,124 INFO L158 Benchmark]: RCFGBuilder took 407.16ms. Allocated memory is still 169.9MB. Free memory was 130.0MB in the beginning and 115.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-21 18:05:40,124 INFO L158 Benchmark]: TraceAbstraction took 772.40ms. Allocated memory is still 169.9MB. Free memory was 115.3MB in the beginning and 74.5MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-21 18:05:40,125 INFO L158 Benchmark]: Witness Printer took 6.53ms. Allocated memory is still 169.9MB. Free memory was 74.5MB in the beginning and 73.6MB in the end (delta: 855.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:40,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 169.9MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.69ms. Allocated memory is still 169.9MB. Free memory was 100.6MB in the beginning and 133.3MB in the end (delta: -32.7MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.47ms. Allocated memory is still 169.9MB. Free memory was 133.3MB in the beginning and 131.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.06ms. Allocated memory is still 169.9MB. Free memory was 131.2MB in the beginning and 130.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 407.16ms. Allocated memory is still 169.9MB. Free memory was 130.0MB in the beginning and 115.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 772.40ms. Allocated memory is still 169.9MB. Free memory was 115.3MB in the beginning and 74.5MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 6.53ms. Allocated memory is still 169.9MB. Free memory was 74.5MB in the beginning and 73.6MB in the end (delta: 855.4kB). 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: 1373, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1373, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 0, independent unconditional: 1367, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 0, independent unconditional: 1367, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 40, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1369, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1295, unknown conditional: 0, unknown unconditional: 1295] , Statistics on independence cache: Total cache size (in pairs): 1295, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 68, Maximal queried relation: 0, Independence queries for same thread: 4, Statistics for Abstraction: , Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 45, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1301, independent: 1299, independent conditional: 0, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 1373, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1373, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 68, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 0, independent unconditional: 1367, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1369, independent: 1367, independent conditional: 0, independent unconditional: 1367, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 40, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1369, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1295, unknown conditional: 0, unknown unconditional: 1295] , Statistics on independence cache: Total cache size (in pairs): 1295, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 68, Maximal queried relation: 0, Independence queries for same thread: 4, Statistics for Abstraction: - UnprovableResult [Line: 749]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 749. Possible FailurePath: [L751] 0 int _N; VAL [_N=0] [L752] 0 atomic_int limit; VAL [_N=0, limit=0] [L772] 0 _N = __VERIFIER_nondet_int() VAL [_N=-2, limit=0] [L773] 0 pthread_t t1, t2; VAL [_N=-2, limit=0] [L774] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [_N=-2, limit=0, t1=-1] [L775] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [_N=-2, limit=0, t1=-1, t2=0] [L763] 2 int i, bound; VAL [\old(arg)={0:0}, _N=-2, arg={0:0}, limit=0] [L764] 2 int lim = _N + 1; VAL [\old(arg)={0:0}, _N=-2, arg={0:0}, lim=-1, limit=0] [L765] 2 limit = lim VAL [\old(arg)={0:0}, _N=-2, arg={0:0}, lim=-1, limit=-1] [L766] 2 bound = limit VAL [\old(arg)={0:0}, _N=-2, arg={0:0}, bound=-1, lim=-1, limit=-1] [L767] 2 i = 0 VAL [\old(arg)={0:0}, _N=-2, arg={0:0}, bound=-1, i=0, lim=-1, limit=-1] [L767] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, _N=-2, arg={0:0}, bound=-1, i=0, lim=-1, limit=-1] [L768] CALL 2 __VERIFIER_assert(i == lim) [L750] COND TRUE 2 !expression VAL [\old(expression)=0, _N=-2, expression=0, limit=-1] [L750] CALL 2 reach_error() [L749] COND FALSE 2 !(0) VAL [_N=-2, limit=-1] [L749] 2 __assert_fail ("0", "generated/unwind2.h", 7, __extension__ __PRETTY_FUNCTION__) VAL [_N=-2, limit=-1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 145 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-21 18:05:40,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-21 18:05:40,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-theta/unwind2-nondet.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a5cfd83882a7664c3fd4f1a4e18081e8ded19b8ce4eef96c1e08452494599fb --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.theta-eval-2e5b835-m [2024-10-21 18:05:42,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-21 18:05:42,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-10-21 18:05:42,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-21 18:05:42,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-21 18:05:42,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-21 18:05:42,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-21 18:05:42,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-21 18:05:42,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-21 18:05:42,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-21 18:05:42,885 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-21 18:05:42,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-21 18:05:42,886 INFO L153 SettingsManager]: * Use SBE=true [2024-10-21 18:05:42,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-21 18:05:42,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-21 18:05:42,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-21 18:05:42,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-21 18:05:42,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-21 18:05:42,888 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-21 18:05:42,888 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-21 18:05:42,888 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-21 18:05:42,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-21 18:05:42,890 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-21 18:05:42,890 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-21 18:05:42,891 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-21 18:05:42,891 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-21 18:05:42,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-21 18:05:42,892 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-21 18:05:42,892 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-21 18:05:42,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-21 18:05:42,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-21 18:05:42,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-21 18:05:42,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-21 18:05:42,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:42,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-21 18:05:42,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-21 18:05:42,895 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-21 18:05:42,895 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-21 18:05:42,895 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-21 18:05:42,895 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-21 18:05:42,896 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-21 18:05:42,899 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-21 18:05:42,899 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-21 18:05:42,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-21 18:05:42,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5cfd83882a7664c3fd4f1a4e18081e8ded19b8ce4eef96c1e08452494599fb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2024-10-21 18:05:43,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-21 18:05:43,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-21 18:05:43,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-21 18:05:43,299 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-21 18:05:43,300 INFO L274 PluginConnector]: CDTParser initialized [2024-10-21 18:05:43,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/unwind2-nondet.i [2024-10-21 18:05:44,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-21 18:05:45,111 INFO L384 CDTParser]: Found 1 translation units. [2024-10-21 18:05:45,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind2-nondet.i [2024-10-21 18:05:45,144 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1030604b/148a60f58dfc42549c3dc1fb59a1616f/FLAG73c3cd1e9 [2024-10-21 18:05:45,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1030604b/148a60f58dfc42549c3dc1fb59a1616f [2024-10-21 18:05:45,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-21 18:05:45,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-21 18:05:45,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:45,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-21 18:05:45,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-21 18:05:45,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:45" (1/1) ... [2024-10-21 18:05:45,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f07a6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:45, skipping insertion in model container [2024-10-21 18:05:45,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:05:45" (1/1) ... [2024-10-21 18:05:45,488 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-21 18:05:45,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:45,927 INFO L200 MainTranslator]: Completed pre-run [2024-10-21 18:05:45,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 18:05:46,041 INFO L204 MainTranslator]: Completed translation [2024-10-21 18:05:46,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46 WrapperNode [2024-10-21 18:05:46,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-21 18:05:46,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:46,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-21 18:05:46,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-21 18:05:46,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,104 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 82 [2024-10-21 18:05:46,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-21 18:05:46,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-21 18:05:46,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-21 18:05:46,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-21 18:05:46,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-21 18:05:46,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-21 18:05:46,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-21 18:05:46,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-21 18:05:46,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (1/1) ... [2024-10-21 18:05:46,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 18:05:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:46,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:46,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-21 18:05:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-21 18:05:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-21 18:05:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-21 18:05:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-21 18:05:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-21 18:05:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-21 18:05:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-21 18:05:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-21 18:05:46,235 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-21 18:05:46,379 INFO L238 CfgBuilder]: Building ICFG [2024-10-21 18:05:46,382 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-21 18:05:46,580 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-21 18:05:46,580 INFO L287 CfgBuilder]: Performing block encoding [2024-10-21 18:05:46,597 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-21 18:05:46,597 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-21 18:05:46,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:46 BoogieIcfgContainer [2024-10-21 18:05:46,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-21 18:05:46,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-21 18:05:46,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-21 18:05:46,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-21 18:05:46,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 06:05:45" (1/3) ... [2024-10-21 18:05:46,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f592a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:46, skipping insertion in model container [2024-10-21 18:05:46,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:05:46" (2/3) ... [2024-10-21 18:05:46,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f592a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:05:46, skipping insertion in model container [2024-10-21 18:05:46,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:46" (3/3) ... [2024-10-21 18:05:46,609 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-nondet.i [2024-10-21 18:05:46,626 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-21 18:05:46,627 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-21 18:05:46,627 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-21 18:05:46,721 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-21 18:05:46,788 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:46,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 18:05:46,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 18:05:46,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 18:05:46,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-21 18:05:46,839 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 18:05:46,853 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-10-21 18:05:46,862 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;@61944716, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 18:05:46,863 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-21 18:05:47,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [f2Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-21 18:05:47,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 18:05:47,172 INFO L85 PathProgramCache]: Analyzing trace with hash 169463552, now seen corresponding path program 1 times [2024-10-21 18:05:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-21 18:05:47,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465917605] [2024-10-21 18:05:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 18:05:47,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-21 18:05:47,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-21 18:05:47,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-21 18:05:47,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-21 18:05:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:47,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 18:05:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 18:05:47,397 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-21 18:05:47,399 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 18:05:47,400 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-10-21 18:05:47,407 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 (3)] Forceful destruction successful, exit code 0 [2024-10-21 18:05:47,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-21 18:05:47,613 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-21 18:05:47,615 INFO L312 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE (1/3) [2024-10-21 18:05:47,669 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-21 18:05:47,669 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-21 18:05:47,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 06:05:47 BasicIcfg [2024-10-21 18:05:47,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-21 18:05:47,675 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-21 18:05:47,676 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-21 18:05:47,676 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-21 18:05:47,676 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:05:46" (3/4) ... [2024-10-21 18:05:47,678 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-21 18:05:47,679 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-21 18:05:47,681 INFO L158 Benchmark]: Toolchain (without parser) took 2261.26ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 42.0MB in the beginning and 41.5MB in the end (delta: 530.3kB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-10-21 18:05:47,682 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:47,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.75ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 35.2MB in the end (delta: 6.6MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-10-21 18:05:47,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.04ms. Allocated memory is still 62.9MB. Free memory was 35.2MB in the beginning and 33.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 18:05:47,683 INFO L158 Benchmark]: Boogie Preprocessor took 45.04ms. Allocated memory is still 62.9MB. Free memory was 33.0MB in the beginning and 31.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-21 18:05:47,683 INFO L158 Benchmark]: RCFGBuilder took 444.71ms. Allocated memory is still 62.9MB. Free memory was 31.3MB in the beginning and 34.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-10-21 18:05:47,684 INFO L158 Benchmark]: TraceAbstraction took 1074.38ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 33.8MB in the beginning and 41.9MB in the end (delta: -8.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-10-21 18:05:47,684 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 75.5MB. Free memory was 41.9MB in the beginning and 41.5MB in the end (delta: 415.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-21 18:05:47,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.75ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 35.2MB in the end (delta: 6.6MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.04ms. Allocated memory is still 62.9MB. Free memory was 35.2MB in the beginning and 33.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.04ms. Allocated memory is still 62.9MB. Free memory was 33.0MB in the beginning and 31.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 444.71ms. Allocated memory is still 62.9MB. Free memory was 31.3MB in the beginning and 34.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1074.38ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 33.8MB in the beginning and 41.9MB in the end (delta: -8.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 75.5MB. Free memory was 41.9MB in the beginning and 41.5MB in the end (delta: 415.0kB). 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: 1372, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1372, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 0, independent unconditional: 1366, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 0, independent unconditional: 1366, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1368, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1295, unknown conditional: 0, unknown unconditional: 1295] , Statistics on independence cache: Total cache size (in pairs): 1295, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 67, Maximal queried relation: 0, Independence queries for same thread: 4, Statistics for Abstraction: , Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 45, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1301, independent: 1299, independent conditional: 0, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: IndependenceRelationWithAbstraction.Independence Queries: [ total: 1372, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1372, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 67, independent unconditional: 1299, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 0, independent unconditional: 1366, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1368, independent: 1366, independent conditional: 0, independent unconditional: 1366, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1295, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1368, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1295, unknown conditional: 0, unknown unconditional: 1295] , Statistics on independence cache: Total cache size (in pairs): 1295, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 67, Maximal queried relation: 0, Independence queries for same thread: 4, Statistics for Abstraction: - UnprovableResult [Line: 749]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 749. Possible FailurePath: [L751] 0 int _N; VAL [_N=0] [L752] 0 atomic_int limit; VAL [_N=0, limit=0] [L772] 0 _N = __VERIFIER_nondet_int() VAL [_N=-2147483648, limit=0] [L773] 0 pthread_t t1, t2; VAL [_N=-2147483648, limit=0] [L774] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [_N=-2147483648, limit=0, t1=0] [L775] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [_N=-2147483648, limit=0, t1=0, t2=1] [L763] 2 int i, bound; VAL [\old(arg)={0:0}, _N=-2147483648, arg={0:0}, limit=0] [L764] 2 int lim = _N + 1; VAL [\old(arg)={0:0}, _N=-2147483648, arg={0:0}, lim=-2147483647, limit=0] [L765] 2 limit = lim VAL [\old(arg)={0:0}, _N=-2147483648, arg={0:0}, lim=-2147483647, limit=-2147483647] [L766] 2 bound = limit VAL [\old(arg)={0:0}, _N=-2147483648, arg={0:0}, bound=-2147483647, lim=-2147483647, limit=-2147483647] [L767] 2 i = 0 VAL [\old(arg)={0:0}, _N=-2147483648, arg={0:0}, bound=-2147483647, i=0, lim=-2147483647, limit=-2147483647] [L767] COND FALSE 2 !(i < bound) VAL [\old(arg)={0:0}, _N=-2147483648, arg={0:0}, bound=-2147483647, i=0, lim=-2147483647, limit=-2147483647] [L768] CALL 2 __VERIFIER_assert(i == lim) [L750] COND TRUE 2 !expression VAL [\old(expression)=0, _N=-2147483648, expression=0, limit=-2147483647] [L750] CALL 2 reach_error() [L749] COND FALSE 2 !(0) VAL [_N=-2147483648, limit=-2147483647] [L749] 2 __assert_fail ("0", "generated/unwind2.h", 7, __extension__ __PRETTY_FUNCTION__) VAL [_N=-2147483648, limit=-2147483647] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 145 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-21 18:05:47,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-21 18:05:47,919 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