./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c --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/weaver/popl20-more-nonblocking-counter-alt2.wvr.c -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 87e1a1d3acb3ee9b7a4a97eb7b14df31d5b38b7566b1218cea0dabfe5ec8ddbd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 14:45:35,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 14:45:35,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-26 14:45:35,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 14:45:35,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 14:45:35,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 14:45:35,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 14:45:35,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 14:45:35,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 14:45:35,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 14:45:35,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 14:45:35,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 14:45:35,693 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 14:45:35,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 14:45:35,696 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 14:45:35,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 14:45:35,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 14:45:35,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 14:45:35,697 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 14:45:35,697 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 14:45:35,697 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 14:45:35,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 14:45:35,703 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 14:45:35,703 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 14:45:35,703 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 14:45:35,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 14:45:35,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 14:45:35,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 14:45:35,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 14:45:35,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 14:45:35,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 14:45:35,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:45:35,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 14:45:35,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 14:45:35,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-26 14:45:35,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-26 14:45:35,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 14:45:35,707 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 14:45:35,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 14:45:35,708 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 14:45:35,708 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 14:45:35,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87e1a1d3acb3ee9b7a4a97eb7b14df31d5b38b7566b1218cea0dabfe5ec8ddbd [2024-10-26 14:45:35,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 14:45:35,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 14:45:35,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 14:45:35,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 14:45:35,988 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 14:45:35,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-10-26 14:45:37,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 14:45:37,517 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 14:45:37,517 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-10-26 14:45:37,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/644bcde58/ce496f8a78c44b109c2dc04db4efcc76/FLAG292deb773 [2024-10-26 14:45:37,906 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/644bcde58/ce496f8a78c44b109c2dc04db4efcc76 [2024-10-26 14:45:37,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 14:45:37,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 14:45:37,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 14:45:37,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 14:45:37,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 14:45:37,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:45:37" (1/1) ... [2024-10-26 14:45:37,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269b2b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:37, skipping insertion in model container [2024-10-26 14:45:37,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:45:37" (1/1) ... [2024-10-26 14:45:37,942 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 14:45:38,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:45:38,124 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 14:45:38,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:45:38,159 INFO L204 MainTranslator]: Completed translation [2024-10-26 14:45:38,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38 WrapperNode [2024-10-26 14:45:38,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 14:45:38,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 14:45:38,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 14:45:38,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 14:45:38,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,209 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 46 [2024-10-26 14:45:38,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 14:45:38,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 14:45:38,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 14:45:38,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 14:45:38,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 14:45:38,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 14:45:38,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 14:45:38,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 14:45:38,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (1/1) ... [2024-10-26 14:45:38,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:45:38,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:45:38,297 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 14:45:38,300 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 14:45:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 14:45:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-26 14:45:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-26 14:45:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-26 14:45:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-26 14:45:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-26 14:45:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-26 14:45:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-26 14:45:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 14:45:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 14:45:38,354 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 14:45:38,448 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 14:45:38,450 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 14:45:38,581 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 14:45:38,581 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 14:45:38,707 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 14:45:38,707 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-26 14:45:38,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 02:45:38 BoogieIcfgContainer [2024-10-26 14:45:38,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 14:45:38,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 14:45:38,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 14:45:38,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 14:45:38,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 02:45:37" (1/3) ... [2024-10-26 14:45:38,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648ebcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 02:45:38, skipping insertion in model container [2024-10-26 14:45:38,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:45:38" (2/3) ... [2024-10-26 14:45:38,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648ebcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 02:45:38, skipping insertion in model container [2024-10-26 14:45:38,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 02:45:38" (3/3) ... [2024-10-26 14:45:38,718 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2024-10-26 14:45:38,734 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 14:45:38,735 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-26 14:45:38,736 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 14:45:38,794 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-26 14:45:38,834 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:45:38,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 14:45:38,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:45:38,836 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 14:45:38,837 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 14:45:38,879 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 14:45:38,893 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-26 14:45:38,901 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;@506ca21d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:45:38,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-26 14:45:39,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-26 14:45:39,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:45:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1592632574, now seen corresponding path program 1 times [2024-10-26 14:45:39,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 14:45:39,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253330793] [2024-10-26 14:45:39,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:45:39,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 14:45:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:45:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:39,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 14:45:39,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253330793] [2024-10-26 14:45:39,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253330793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:45:39,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:45:39,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 14:45:39,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559427409] [2024-10-26 14:45:39,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:45:39,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 14:45:39,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 14:45:39,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 14:45:39,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 14:45:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:39,461 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:45:39,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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 14:45:39,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:45:39,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-26 14:45:39,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-26 14:45:39,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:45:39,630 INFO L85 PathProgramCache]: Analyzing trace with hash -521913892, now seen corresponding path program 1 times [2024-10-26 14:45:39,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 14:45:39,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421450224] [2024-10-26 14:45:39,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:45:39,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 14:45:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:45:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:40,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 14:45:40,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421450224] [2024-10-26 14:45:40,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421450224] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-26 14:45:40,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050156786] [2024-10-26 14:45:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:45:40,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:45:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:45:40,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-26 14:45:40,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-26 14:45:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:45:40,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-26 14:45:40,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:45:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:40,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:45:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:40,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050156786] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:45:40,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-26 14:45:40,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 18 [2024-10-26 14:45:40,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827190023] [2024-10-26 14:45:40,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-26 14:45:40,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-26 14:45:40,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 14:45:40,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-26 14:45:40,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-10-26 14:45:40,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:40,783 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:45:40,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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 14:45:40,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:45:40,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:45:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-26 14:45:41,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-26 14:45:41,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-26 14:45:41,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-26 14:45:41,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:45:41,434 INFO L85 PathProgramCache]: Analyzing trace with hash -131108514, now seen corresponding path program 2 times [2024-10-26 14:45:41,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 14:45:41,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441418697] [2024-10-26 14:45:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:45:41,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 14:45:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:45:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:42,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 14:45:42,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441418697] [2024-10-26 14:45:42,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441418697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-26 14:45:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836673167] [2024-10-26 14:45:42,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 14:45:42,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:45:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:45:42,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-26 14:45:42,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-26 14:45:42,230 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-26 14:45:42,230 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:45:42,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-26 14:45:42,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:45:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:42,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:45:43,028 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:43,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836673167] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:45:43,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-26 14:45:43,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 11] total 26 [2024-10-26 14:45:43,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879696712] [2024-10-26 14:45:43,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-26 14:45:43,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-26 14:45:43,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 14:45:43,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-26 14:45:43,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2024-10-26 14:45:43,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:43,035 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:45:43,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.5384615384615383) internal successors, (66), 26 states have internal predecessors, (66), 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 14:45:43,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:45:43,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-26 14:45:43,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:45:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-26 14:45:43,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-26 14:45:43,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-26 14:45:43,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:45:43,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-26 14:45:43,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:45:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1731700520, now seen corresponding path program 3 times [2024-10-26 14:45:43,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 14:45:43,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994763403] [2024-10-26 14:45:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:45:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 14:45:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:45:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:44,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 14:45:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994763403] [2024-10-26 14:45:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994763403] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-26 14:45:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894532340] [2024-10-26 14:45:44,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-26 14:45:44,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:45:44,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:45:44,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-26 14:45:44,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-26 14:45:44,656 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-26 14:45:44,657 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:45:44,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-26 14:45:44,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:45:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:45,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:45:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:46,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894532340] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:45:46,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-26 14:45:46,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 24 [2024-10-26 14:45:46,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296563041] [2024-10-26 14:45:46,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-26 14:45:46,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-26 14:45:46,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 14:45:46,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-26 14:45:46,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-10-26 14:45:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:46,098 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:45:46,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 24 states have internal predecessors, (61), 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 14:45:46,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:45:46,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-26 14:45:46,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-26 14:45:46,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:47,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:45:47,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-26 14:45:47,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-26 14:45:47,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-26 14:45:47,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-26 14:45:47,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:45:47,274 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-26 14:45:47,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:45:47,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1398317419, now seen corresponding path program 4 times [2024-10-26 14:45:47,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 14:45:47,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405642325] [2024-10-26 14:45:47,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:45:47,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 14:45:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:45:48,773 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:48,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 14:45:48,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405642325] [2024-10-26 14:45:48,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405642325] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-26 14:45:48,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940005453] [2024-10-26 14:45:48,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-26 14:45:48,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:45:48,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:45:48,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-26 14:45:48,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-26 14:45:48,840 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-26 14:45:48,840 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:45:48,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-26 14:45:48,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:46:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-26 14:46:00,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:46:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-26 14:46:02,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940005453] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:46:02,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-26 14:46:02,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 14] total 44 [2024-10-26 14:46:02,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563240488] [2024-10-26 14:46:02,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-26 14:46:02,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-26 14:46:02,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 14:46:02,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-26 14:46:02,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1665, Unknown=0, NotChecked=0, Total=1892 [2024-10-26 14:46:02,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:46:02,844 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:46:02,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.3181818181818183) internal successors, (102), 44 states have internal predecessors, (102), 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 14:46:02,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:46:02,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-26 14:46:02,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-26 14:46:02,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-10-26 14:46:02,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:46:10,098 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 30 DAG size of output: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:46:20,258 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 45 DAG size of output: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:46:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:46:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-26 14:46:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-26 14:46:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-26 14:46:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-10-26 14:46:41,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-26 14:46:41,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:46:41,992 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-26 14:46:41,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:46:41,993 INFO L85 PathProgramCache]: Analyzing trace with hash 324596845, now seen corresponding path program 5 times [2024-10-26 14:46:41,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 14:46:41,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141472247] [2024-10-26 14:46:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:46:41,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 14:46:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:46:43,786 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:46:43,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 14:46:43,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141472247] [2024-10-26 14:46:43,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141472247] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-26 14:46:43,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048714654] [2024-10-26 14:46:43,787 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-26 14:46:43,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 14:46:43,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:46:43,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-26 14:46:43,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-26 14:46:43,959 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-10-26 14:46:43,959 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:46:43,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-26 14:46:43,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:47:06,837 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:47:37,937 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:51:11,046 WARN L286 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:51:28,455 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:52:03,868 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:52:32,989 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:53:16,050 WARN L286 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:57:48,421 WARN L286 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-26 14:58:03,584 WARN L286 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15