./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 01849734 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-0184973-m [2025-04-24 17:57:01,346 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 17:57:01,408 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 17:57:01,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 17:57:01,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 17:57:01,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 17:57:01,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 17:57:01,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 17:57:01,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 17:57:01,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 17:57:01,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 17:57:01,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 17:57:01,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 17:57:01,429 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 17:57:01,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 17:57:01,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 17:57:01,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 17:57:01,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 17:57:01,431 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 17:57:01,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 17:57:01,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 17:57:01,431 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 17:57:01,431 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 17:57:01,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2025-04-24 17:57:01,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 17:57:01,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 17:57:01,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 17:57:01,705 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 17:57:01,705 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 17:57:01,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-04-24 17:57:02,924 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94fa69ae6/51b6b9bda5234c53ab5c6b51f283e0a3/FLAGb28251684 [2025-04-24 17:57:03,163 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 17:57:03,165 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-04-24 17:57:03,179 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94fa69ae6/51b6b9bda5234c53ab5c6b51f283e0a3/FLAGb28251684 [2025-04-24 17:57:04,124 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94fa69ae6/51b6b9bda5234c53ab5c6b51f283e0a3 [2025-04-24 17:57:04,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 17:57:04,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 17:57:04,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 17:57:04,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 17:57:04,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 17:57:04,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12461ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04, skipping insertion in model container [2025-04-24 17:57:04,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 17:57:04,435 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2025-04-24 17:57:04,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 17:57:04,468 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 17:57:04,513 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2025-04-24 17:57:04,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 17:57:04,567 INFO L204 MainTranslator]: Completed translation [2025-04-24 17:57:04,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04 WrapperNode [2025-04-24 17:57:04,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 17:57:04,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 17:57:04,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 17:57:04,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 17:57:04,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,625 INFO L138 Inliner]: procedures = 243, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 260 [2025-04-24 17:57:04,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 17:57:04,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 17:57:04,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 17:57:04,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 17:57:04,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 17:57:04,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 17:57:04,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 17:57:04,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 17:57:04,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (1/1) ... [2025-04-24 17:57:04,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 17:57:04,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:57:04,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 17:57:04,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 17:57:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-04-24 17:57:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-24 17:57:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 17:57:04,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 17:57:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 17:57:04,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 17:57:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-24 17:57:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 17:57:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 17:57:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 17:57:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 17:57:04,721 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 17:57:04,860 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 17:57:04,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 17:57:05,152 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 17:57:05,152 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 17:57:05,865 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 17:57:05,865 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 17:57:05,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 05:57:05 BoogieIcfgContainer [2025-04-24 17:57:05,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 17:57:05,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 17:57:05,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 17:57:05,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 17:57:05,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 05:57:04" (1/3) ... [2025-04-24 17:57:05,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768149dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 05:57:05, skipping insertion in model container [2025-04-24 17:57:05,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:57:04" (2/3) ... [2025-04-24 17:57:05,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768149dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 05:57:05, skipping insertion in model container [2025-04-24 17:57:05,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 05:57:05" (3/3) ... [2025-04-24 17:57:05,874 INFO L128 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2025-04-24 17:57:05,885 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 17:57:05,886 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_ok.i that has 3 procedures, 33 locations, 36 edges, 1 initial locations, 4 loop locations, and 1 error locations. [2025-04-24 17:57:05,886 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 17:57:05,930 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 17:57:05,960 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:57:05,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 17:57:05,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:57:05,964 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) [2025-04-24 17:57:05,965 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 [2025-04-24 17:57:06,028 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 17:57:06,040 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 17:57:06,045 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35007916, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:57:06,045 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 17:57:06,177 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:06,177 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:06,177 INFO L139 ounterexampleChecker]: Examining path program with hash 1679852720, occurence #1 [2025-04-24 17:57:06,178 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:06,178 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:06,181 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:06,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1594770461, now seen corresponding path program 1 times [2025-04-24 17:57:06,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:06,187 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131615271] [2025-04-24 17:57:06,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:57:06,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:06,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-04-24 17:57:06,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 17:57:06,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:57:06,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:06,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:06,874 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131615271] [2025-04-24 17:57:06,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131615271] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:57:06,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:57:06,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 17:57:06,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32446546] [2025-04-24 17:57:06,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:57:06,879 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 17:57:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:06,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 17:57:06,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 17:57:06,894 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:06,895 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:06,897 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2025-04-24 17:57:06,897 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:07,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:07,001 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 17:57:07,001 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:07,001 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:07,002 INFO L139 ounterexampleChecker]: Examining path program with hash 1887563374, occurence #1 [2025-04-24 17:57:07,002 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:07,002 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:07,002 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1506141637, now seen corresponding path program 2 times [2025-04-24 17:57:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:07,002 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598595885] [2025-04-24 17:57:07,002 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 17:57:07,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:07,271 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 2 equivalence classes. [2025-04-24 17:57:07,307 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 59 of 59 statements. [2025-04-24 17:57:07,307 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 17:57:07,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 17:57:07,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:07,458 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598595885] [2025-04-24 17:57:07,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598595885] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:57:07,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:57:07,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 17:57:07,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519786770] [2025-04-24 17:57:07,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:57:07,460 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 17:57:07,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:07,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 17:57:07,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 17:57:07,461 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:07,461 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:07,461 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2025-04-24 17:57:07,461 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:07,461 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:07,593 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:07,594 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:07,594 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 17:57:07,594 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:07,594 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:07,594 INFO L139 ounterexampleChecker]: Examining path program with hash 1778404960, occurence #1 [2025-04-24 17:57:07,594 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:07,594 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:07,594 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:07,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1238355879, now seen corresponding path program 3 times [2025-04-24 17:57:07,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:07,595 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641247147] [2025-04-24 17:57:07,595 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 17:57:07,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:07,787 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 74 statements into 2 equivalence classes. [2025-04-24 17:57:07,813 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-04-24 17:57:07,813 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 17:57:07,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-24 17:57:08,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:08,008 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641247147] [2025-04-24 17:57:08,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641247147] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:57:08,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:57:08,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 17:57:08,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620613292] [2025-04-24 17:57:08,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:57:08,009 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 17:57:08,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:08,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 17:57:08,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 17:57:08,009 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:08,009 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:08,009 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-04-24 17:57:08,009 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:08,009 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:08,009 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:08,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:08,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:08,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:08,096 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 17:57:08,097 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:08,097 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:08,097 INFO L139 ounterexampleChecker]: Examining path program with hash -2004816384, occurence #1 [2025-04-24 17:57:08,097 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:08,097 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:08,097 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1793141826, now seen corresponding path program 1 times [2025-04-24 17:57:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:08,097 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745156805] [2025-04-24 17:57:08,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:57:08,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:08,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-04-24 17:57:08,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 17:57:08,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:57:08,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:08,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:08,324 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745156805] [2025-04-24 17:57:08,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745156805] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 17:57:08,325 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723287946] [2025-04-24 17:57:08,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:57:08,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:08,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:57:08,327 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) [2025-04-24 17:57:08,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 17:57:08,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-04-24 17:57:08,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 17:57:08,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:57:08,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:08,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-24 17:57:08,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 17:57:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 17:57:08,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 17:57:08,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723287946] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:57:08,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 17:57:08,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-04-24 17:57:08,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976608933] [2025-04-24 17:57:08,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:57:08,722 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 17:57:08,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:08,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 17:57:08,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-04-24 17:57:08,723 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:08,723 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:08,723 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2025-04-24 17:57:08,723 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:08,723 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:08,723 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:08,723 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:08,771 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:08,772 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:08,772 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:08,772 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:08,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-24 17:57:08,976 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:08,976 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:08,976 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:08,976 INFO L139 ounterexampleChecker]: Examining path program with hash -1518637626, occurence #1 [2025-04-24 17:57:08,976 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:08,976 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:08,976 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:08,976 INFO L85 PathProgramCache]: Analyzing trace with hash 575408954, now seen corresponding path program 4 times [2025-04-24 17:57:08,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:08,977 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235705335] [2025-04-24 17:57:08,977 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 17:57:08,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:09,146 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 65 statements into 2 equivalence classes. [2025-04-24 17:57:09,152 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 63 of 65 statements. [2025-04-24 17:57:09,152 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 17:57:09,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:09,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:09,236 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235705335] [2025-04-24 17:57:09,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235705335] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 17:57:09,237 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443218304] [2025-04-24 17:57:09,237 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 17:57:09,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:09,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:57:09,239 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) [2025-04-24 17:57:09,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 17:57:09,539 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 65 statements into 2 equivalence classes. [2025-04-24 17:57:09,563 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 63 of 65 statements. [2025-04-24 17:57:09,563 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 17:57:09,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:09,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-24 17:57:09,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 17:57:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:09,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 17:57:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443218304] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 17:57:09,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 17:57:09,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2025-04-24 17:57:09,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947671063] [2025-04-24 17:57:09,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 17:57:09,711 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-24 17:57:09,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:09,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-24 17:57:09,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-24 17:57:09,712 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:09,712 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:09,712 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-04-24 17:57:09,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:09,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:09,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:09,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:09,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:09,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:09,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:09,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:09,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:09,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 17:57:09,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-24 17:57:10,013 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:10,014 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:10,014 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:10,014 INFO L139 ounterexampleChecker]: Examining path program with hash 1075850653, occurence #1 [2025-04-24 17:57:10,014 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:10,014 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:10,014 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:10,015 INFO L85 PathProgramCache]: Analyzing trace with hash 183858946, now seen corresponding path program 1 times [2025-04-24 17:57:10,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:10,015 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390744902] [2025-04-24 17:57:10,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:57:10,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:10,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-04-24 17:57:10,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-04-24 17:57:10,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:57:10,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 66 proven. 5 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2025-04-24 17:57:10,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:10,298 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390744902] [2025-04-24 17:57:10,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390744902] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 17:57:10,299 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369527814] [2025-04-24 17:57:10,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:57:10,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:10,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:57:10,302 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) [2025-04-24 17:57:10,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 17:57:10,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-04-24 17:57:10,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-04-24 17:57:10,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:57:10,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:10,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-24 17:57:10,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 17:57:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-04-24 17:57:10,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 17:57:10,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369527814] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:57:10,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 17:57:10,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-04-24 17:57:10,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991251904] [2025-04-24 17:57:10,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:57:10,732 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 17:57:10,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:10,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 17:57:10,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-24 17:57:10,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:10,733 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:10,733 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2025-04-24 17:57:10,733 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:10,733 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:10,733 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:10,733 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:10,733 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 17:57:10,733 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:10,774 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:10,774 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:10,775 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:10,775 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:10,775 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 17:57:10,775 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:10,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-24 17:57:10,976 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:10,977 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:10,977 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:10,977 INFO L139 ounterexampleChecker]: Examining path program with hash 1146610367, occurence #1 [2025-04-24 17:57:10,977 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:10,977 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:10,977 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash 72005540, now seen corresponding path program 1 times [2025-04-24 17:57:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:10,977 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824359651] [2025-04-24 17:57:10,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:57:10,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:11,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-04-24 17:57:11,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-04-24 17:57:11,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:57:11,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 60 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:11,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:11,242 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824359651] [2025-04-24 17:57:11,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824359651] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 17:57:11,242 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281998928] [2025-04-24 17:57:11,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:57:11,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:11,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:57:11,245 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) [2025-04-24 17:57:11,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 17:57:11,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-04-24 17:57:11,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-04-24 17:57:11,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:57:11,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:11,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-24 17:57:11,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 17:57:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:11,676 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 17:57:11,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281998928] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:57:11,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 17:57:11,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2025-04-24 17:57:11,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635640266] [2025-04-24 17:57:11,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:57:11,676 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 17:57:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:11,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 17:57:11,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-04-24 17:57:11,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:11,676 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:11,677 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2025-04-24 17:57:11,677 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:11,677 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:11,677 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:11,677 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:11,677 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 17:57:11,677 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:11,677 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:11,792 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:11,792 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:11,792 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:11,792 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:11,792 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 17:57:11,792 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:11,795 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 17:57:11,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-24 17:57:11,996 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-04-24 17:57:11,996 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:57:11,996 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:57:11,996 INFO L139 ounterexampleChecker]: Examining path program with hash 769829782, occurence #1 [2025-04-24 17:57:11,996 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:57:11,996 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:57:11,997 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:57:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash -23419356, now seen corresponding path program 2 times [2025-04-24 17:57:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:57:11,997 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122497942] [2025-04-24 17:57:11,997 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 17:57:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:57:12,118 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-04-24 17:57:12,157 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-04-24 17:57:12,157 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 17:57:12,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:12,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:57:12,556 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122497942] [2025-04-24 17:57:12,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122497942] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 17:57:12,556 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960118746] [2025-04-24 17:57:12,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 17:57:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:57:12,562 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) [2025-04-24 17:57:12,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-24 17:57:12,887 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-04-24 17:57:12,976 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-04-24 17:57:12,976 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 17:57:12,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:57:12,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-04-24 17:57:12,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 17:57:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:13,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 17:57:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:57:13,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960118746] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 17:57:13,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 17:57:13,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 30 [2025-04-24 17:57:13,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796458739] [2025-04-24 17:57:13,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 17:57:13,525 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-04-24 17:57:13,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:57:13,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-04-24 17:57:13,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2025-04-24 17:57:13,526 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:13,526 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:57:13,526 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 30 states have internal predecessors, (166), 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) [2025-04-24 17:57:13,526 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:13,526 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:13,527 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:13,527 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:13,527 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 17:57:13,527 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:13,527 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 17:57:13,527 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:57:14,509 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:57:14,509 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:14,509 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 17:57:14,510 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:14,510 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 17:57:14,510 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 17:57:14,510 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 17:57:14,510 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 17:57:14,512 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-24 17:57:14,512 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-24 17:57:14,512 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-24 17:57:14,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-24 17:57:14,712 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 17:57:14,716 INFO L422 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1] [2025-04-24 17:57:14,718 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 17:57:14,718 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 17:57:14,726 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 [2025-04-24 17:57:14,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 05:57:14 BasicIcfg [2025-04-24 17:57:14,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 17:57:14,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 17:57:14,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 17:57:14,727 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 17:57:14,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 05:57:05" (3/4) ... [2025-04-24 17:57:14,729 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-24 17:57:14,731 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-04-24 17:57:14,732 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-04-24 17:57:14,738 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 253 nodes and edges [2025-04-24 17:57:14,738 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-04-24 17:57:14,738 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-24 17:57:14,739 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-24 17:57:14,739 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-24 17:57:14,803 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 17:57:14,804 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 17:57:14,804 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 17:57:14,806 INFO L158 Benchmark]: Toolchain (without parser) took 10677.35ms. Allocated memory was 117.4MB in the beginning and 671.1MB in the end (delta: 553.6MB). Free memory was 89.8MB in the beginning and 532.9MB in the end (delta: -443.1MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2025-04-24 17:57:14,806 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 17:57:14,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.48ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 59.6MB in the end (delta: 30.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-24 17:57:14,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.88ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 56.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 17:57:14,807 INFO L158 Benchmark]: Boogie Preprocessor took 48.23ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 54.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 17:57:14,807 INFO L158 Benchmark]: RCFGBuilder took 1190.49ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 54.2MB in the beginning and 182.2MB in the end (delta: -128.0MB). Peak memory consumption was 131.4MB. Max. memory is 16.1GB. [2025-04-24 17:57:14,808 INFO L158 Benchmark]: TraceAbstraction took 8859.37ms. Allocated memory was 260.0MB in the beginning and 671.1MB in the end (delta: 411.0MB). Free memory was 182.2MB in the beginning and 542.8MB in the end (delta: -360.6MB). Peak memory consumption was 298.4MB. Max. memory is 16.1GB. [2025-04-24 17:57:14,808 INFO L158 Benchmark]: Witness Printer took 76.99ms. Allocated memory is still 671.1MB. Free memory was 542.8MB in the beginning and 532.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 17:57:14,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.48ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 59.6MB in the end (delta: 30.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.88ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 56.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.23ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 54.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1190.49ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 54.2MB in the beginning and 182.2MB in the end (delta: -128.0MB). Peak memory consumption was 131.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8859.37ms. Allocated memory was 260.0MB in the beginning and 671.1MB in the end (delta: 411.0MB). Free memory was 182.2MB in the beginning and 542.8MB in the end (delta: -360.6MB). Peak memory consumption was 298.4MB. Max. memory is 16.1GB. * Witness Printer took 76.99ms. Allocated memory is still 671.1MB. Free memory was 542.8MB in the beginning and 532.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4957, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 1102, dependent conditional: 1082, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4073, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 218, dependent conditional: 198, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4073, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 218, dependent conditional: 198, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4978, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 1123, dependent conditional: 1103, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4978, independent: 3855, independent conditional: 3, independent unconditional: 3852, dependent: 1123, dependent conditional: 150, dependent unconditional: 973, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4978, independent: 3855, independent conditional: 3, independent unconditional: 3852, dependent: 1123, dependent conditional: 150, dependent unconditional: 973, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 500, independent: 463, independent conditional: 2, independent unconditional: 461, dependent: 37, dependent conditional: 14, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 500, independent: 443, independent conditional: 0, independent unconditional: 443, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 57, independent: 20, independent conditional: 2, independent unconditional: 18, dependent: 37, dependent conditional: 14, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 57, independent: 20, independent conditional: 2, independent unconditional: 18, dependent: 37, dependent conditional: 14, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, independent: 36, independent conditional: 3, independent unconditional: 33, dependent: 61, dependent conditional: 20, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 4978, independent: 3392, independent conditional: 1, independent unconditional: 3391, dependent: 1086, dependent conditional: 136, dependent unconditional: 950, unknown: 500, unknown conditional: 16, unknown unconditional: 484] , Statistics on independence cache: Total cache size (in pairs): 500, Positive cache size: 463, Positive conditional cache size: 2, Positive unconditional cache size: 461, Negative cache size: 37, Negative conditional cache size: 14, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4150, Maximal queried relation: 8, Independence queries for same thread: 884, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 251, Number of trivial persistent sets: 210, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 675, independent: 655, independent conditional: 0, independent unconditional: 655, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4957, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 1102, dependent conditional: 1082, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4073, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 218, dependent conditional: 198, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4073, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 218, dependent conditional: 198, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4978, independent: 3855, independent conditional: 3200, independent unconditional: 655, dependent: 1123, dependent conditional: 1103, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4978, independent: 3855, independent conditional: 3, independent unconditional: 3852, dependent: 1123, dependent conditional: 150, dependent unconditional: 973, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4978, independent: 3855, independent conditional: 3, independent unconditional: 3852, dependent: 1123, dependent conditional: 150, dependent unconditional: 973, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 500, independent: 463, independent conditional: 2, independent unconditional: 461, dependent: 37, dependent conditional: 14, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 500, independent: 443, independent conditional: 0, independent unconditional: 443, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 57, independent: 20, independent conditional: 2, independent unconditional: 18, dependent: 37, dependent conditional: 14, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 57, independent: 20, independent conditional: 2, independent unconditional: 18, dependent: 37, dependent conditional: 14, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, independent: 36, independent conditional: 3, independent unconditional: 33, dependent: 61, dependent conditional: 20, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 4978, independent: 3392, independent conditional: 1, independent unconditional: 3391, dependent: 1086, dependent conditional: 136, dependent unconditional: 950, unknown: 500, unknown conditional: 16, unknown unconditional: 484] , Statistics on independence cache: Total cache size (in pairs): 500, Positive cache size: 463, Positive conditional cache size: 2, Positive unconditional cache size: 461, Negative cache size: 37, Negative conditional cache size: 14, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4150, Maximal queried relation: 8, Independence queries for same thread: 884 - PositiveResult [Line: 919]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 55 locations, 64 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 1.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 45, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 872 NumberOfCodeBlocks, 868 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 984 ConstructedInterpolants, 0 QuantifiedInterpolants, 3249 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2548 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 473/772 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, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-24 17:57:14,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE