./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 18:55:34,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 18:55:34,854 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 18:55:34,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 18:55:34,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 18:55:34,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 18:55:34,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 18:55:34,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 18:55:34,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 18:55:34,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 18:55:34,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 18:55:34,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 18:55:34,882 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 18:55:34,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 18:55:34,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 18:55:34,883 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 18:55:34,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 18:55:34,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 18:55:34,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 18:55:34,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 18:55:34,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 18:55:34,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 18:55:34,884 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 18:55:34,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 18:55:34,884 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 18:55:34,884 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 18:55:34,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 18:55:34,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 18:55:34,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 18:55:34,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 18:55:34,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 18:55:34,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 18:55:34,886 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 18:55:34,886 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-jdk21/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 -> cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 18:55:35,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 18:55:35,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 18:55:35,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 18:55:35,195 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 18:55:35,195 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 18:55:35,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2025-01-23 18:55:36,458 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f69f67e71/c382c8646d05459faa2c6f33d7b0b5eb/FLAG761d358a8 [2025-01-23 18:55:36,678 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 18:55:36,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2025-01-23 18:55:36,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f69f67e71/c382c8646d05459faa2c6f33d7b0b5eb/FLAG761d358a8 [2025-01-23 18:55:37,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f69f67e71/c382c8646d05459faa2c6f33d7b0b5eb [2025-01-23 18:55:37,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 18:55:37,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 18:55:37,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 18:55:37,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 18:55:37,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 18:55:37,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81ff055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37, skipping insertion in model container [2025-01-23 18:55:37,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 18:55:37,174 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[2491,2504] [2025-01-23 18:55:37,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 18:55:37,186 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 18:55:37,253 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[2491,2504] [2025-01-23 18:55:37,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 18:55:37,269 INFO L204 MainTranslator]: Completed translation [2025-01-23 18:55:37,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37 WrapperNode [2025-01-23 18:55:37,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 18:55:37,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 18:55:37,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 18:55:37,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 18:55:37,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,310 INFO L138 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 113 [2025-01-23 18:55:37,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 18:55:37,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 18:55:37,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 18:55:37,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 18:55:37,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 18:55:37,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 18:55:37,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 18:55:37,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 18:55:37,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (1/1) ... [2025-01-23 18:55:37,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 18:55:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:55:37,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 18:55:37,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 18:55:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 18:55:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 18:55:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 18:55:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 18:55:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 18:55:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 18:55:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 18:55:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 18:55:37,403 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 18:55:37,479 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 18:55:37,481 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 18:55:37,671 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 18:55:37,671 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 18:55:37,804 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 18:55:37,806 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 18:55:37,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:55:37 BoogieIcfgContainer [2025-01-23 18:55:37,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 18:55:37,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 18:55:37,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 18:55:37,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 18:55:37,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 06:55:37" (1/3) ... [2025-01-23 18:55:37,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2fad59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 06:55:37, skipping insertion in model container [2025-01-23 18:55:37,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:55:37" (2/3) ... [2025-01-23 18:55:37,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2fad59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 06:55:37, skipping insertion in model container [2025-01-23 18:55:37,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:55:37" (3/3) ... [2025-01-23 18:55:37,818 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2025-01-23 18:55:37,830 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 18:55:37,832 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-bluetooth.wvr.c that has 3 procedures, 45 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-23 18:55:37,832 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 18:55:37,877 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 18:55:37,916 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 18:55:37,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 18:55:37,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:55:37,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 18:55:37,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 18:55:37,982 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 18:55:37,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 18:55:38,005 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@dccf42a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 18:55:38,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-23 18:55:38,272 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:55:38,273 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:55:38,273 INFO L139 ounterexampleChecker]: Examining path program with hash -781630287, occurence #1 [2025-01-23 18:55:38,273 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:55:38,273 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:55:38,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:55:38,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2134323061, now seen corresponding path program 1 times [2025-01-23 18:55:38,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:55:38,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87687239] [2025-01-23 18:55:38,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:55:38,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:55:38,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-01-23 18:55:38,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-23 18:55:38,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:55:38,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:55:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:55:38,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:55:38,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87687239] [2025-01-23 18:55:38,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87687239] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:55:38,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 18:55:38,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 18:55:38,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555410175] [2025-01-23 18:55:38,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:55:38,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 18:55:38,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:55:38,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 18:55:38,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-23 18:55:38,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:38,745 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:55:38,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2025-01-23 18:55:38,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:38,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 18:55:38,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 18:55:38,831 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:55:38,831 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:55:38,831 INFO L139 ounterexampleChecker]: Examining path program with hash -1875039884, occurence #1 [2025-01-23 18:55:38,831 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:55:38,831 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:55:38,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:55:38,832 INFO L85 PathProgramCache]: Analyzing trace with hash 894862257, now seen corresponding path program 1 times [2025-01-23 18:55:38,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:55:38,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30736441] [2025-01-23 18:55:38,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:55:38,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:55:38,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-23 18:55:38,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-23 18:55:38,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:55:38,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:55:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:55:39,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:55:39,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30736441] [2025-01-23 18:55:39,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30736441] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:55:39,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 18:55:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 18:55:39,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388715249] [2025-01-23 18:55:39,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:55:39,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 18:55:39,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:55:39,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 18:55:39,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-23 18:55:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:39,053 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:55:39,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2025-01-23 18:55:39,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 18:55:39,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 18:55:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:55:39,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 18:55:39,123 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:55:39,123 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:55:39,123 INFO L139 ounterexampleChecker]: Examining path program with hash -1805887066, occurence #1 [2025-01-23 18:55:39,123 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:55:39,124 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:55:39,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:55:39,125 INFO L85 PathProgramCache]: Analyzing trace with hash -814238377, now seen corresponding path program 1 times [2025-01-23 18:55:39,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:55:39,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304152371] [2025-01-23 18:55:39,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:55:39,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:55:39,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-23 18:55:39,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-23 18:55:39,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:55:39,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:55:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:55:39,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:55:39,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304152371] [2025-01-23 18:55:39,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304152371] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:55:39,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 18:55:39,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 18:55:39,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167682705] [2025-01-23 18:55:39,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:55:39,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 18:55:39,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:55:39,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 18:55:39,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 18:55:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:39,223 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:55:39,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2025-01-23 18:55:39,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 18:55:39,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:55:39,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 18:55:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:55:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:55:39,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 18:55:39,399 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:55:39,399 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:55:39,400 INFO L139 ounterexampleChecker]: Examining path program with hash -1163016859, occurence #1 [2025-01-23 18:55:39,400 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:55:39,400 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:55:39,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:55:39,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1454093961, now seen corresponding path program 1 times [2025-01-23 18:55:39,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:55:39,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144715281] [2025-01-23 18:55:39,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:55:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:55:39,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-23 18:55:39,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-23 18:55:39,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:55:39,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:55:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:55:39,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:55:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144715281] [2025-01-23 18:55:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144715281] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:55:39,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 18:55:39,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 18:55:39,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513273508] [2025-01-23 18:55:39,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:55:39,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 18:55:39,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:55:39,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 18:55:39,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-23 18:55:39,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:39,783 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:55:39,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2025-01-23 18:55:39,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 18:55:39,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:55:39,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:55:39,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:55:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 18:55:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:55:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:55:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:55:40,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-01-23 18:55:40,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-23 18:55:40,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-23 18:55:40,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-23 18:55:40,468 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-23 18:55:40,470 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-23 18:55:40,470 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-23 18:55:40,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-23 18:55:40,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 06:55:40 BasicIcfg [2025-01-23 18:55:40,482 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-23 18:55:40,482 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-23 18:55:40,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-23 18:55:40,482 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-23 18:55:40,483 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:55:37" (3/4) ... [2025-01-23 18:55:40,485 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-23 18:55:40,487 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-23 18:55:40,487 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-23 18:55:40,492 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2025-01-23 18:55:40,493 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2025-01-23 18:55:40,494 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-23 18:55:40,494 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-23 18:55:40,566 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-01-23 18:55:40,566 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.yml [2025-01-23 18:55:40,566 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-23 18:55:40,567 INFO L158 Benchmark]: Toolchain (without parser) took 3543.64ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 59.4MB in the beginning and 39.2MB in the end (delta: 20.2MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2025-01-23 18:55:40,567 INFO L158 Benchmark]: CDTParser took 1.18ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.4MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 18:55:40,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.64ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 46.2MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-23 18:55:40,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.32ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 44.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-23 18:55:40,568 INFO L158 Benchmark]: Boogie Preprocessor took 33.62ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 43.6MB in the end (delta: 905.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 18:55:40,568 INFO L158 Benchmark]: RCFGBuilder took 461.98ms. Allocated memory is still 83.9MB. Free memory was 43.6MB in the beginning and 54.4MB in the end (delta: -10.7MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2025-01-23 18:55:40,569 INFO L158 Benchmark]: TraceAbstraction took 2672.74ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 53.8MB in the beginning and 45.4MB in the end (delta: 8.5MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2025-01-23 18:55:40,569 INFO L158 Benchmark]: Witness Printer took 84.23ms. Allocated memory is still 100.7MB. Free memory was 45.4MB in the beginning and 39.2MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 18:55:40,570 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.4MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.64ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 46.2MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.32ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 44.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.62ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 43.6MB in the end (delta: 905.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 461.98ms. Allocated memory is still 83.9MB. Free memory was 43.6MB in the beginning and 54.4MB in the end (delta: -10.7MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2672.74ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 53.8MB in the beginning and 45.4MB in the end (delta: 8.5MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * Witness Printer took 84.23ms. Allocated memory is still 100.7MB. Free memory was 45.4MB in the beginning and 39.2MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 970, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 75, dependent conditional: 53, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 936, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 41, dependent conditional: 19, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 936, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 41, dependent conditional: 19, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1035, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 140, dependent conditional: 118, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1035, independent: 895, independent conditional: 10, independent unconditional: 885, dependent: 140, dependent conditional: 32, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1035, independent: 895, independent conditional: 10, independent unconditional: 885, dependent: 140, dependent conditional: 32, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 471, independent: 427, independent conditional: 7, independent unconditional: 420, dependent: 44, dependent conditional: 18, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 471, independent: 416, independent conditional: 0, independent unconditional: 416, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 55, independent: 11, independent conditional: 7, independent unconditional: 4, dependent: 44, dependent conditional: 18, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 55, independent: 11, independent conditional: 7, independent unconditional: 4, dependent: 44, dependent conditional: 18, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 698, independent: 126, independent conditional: 70, independent unconditional: 56, dependent: 572, dependent conditional: 190, dependent unconditional: 382, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1035, independent: 468, independent conditional: 3, independent unconditional: 465, dependent: 96, dependent conditional: 14, dependent unconditional: 82, unknown: 471, unknown conditional: 25, unknown unconditional: 446] , Statistics on independence cache: Total cache size (in pairs): 471, Positive cache size: 427, Positive conditional cache size: 7, Positive unconditional cache size: 420, Negative cache size: 44, Negative conditional cache size: 18, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 551, Maximal queried relation: 4, Independence queries for same thread: 34, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 105, Number of trivial persistent sets: 39, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 442, independent: 420, independent conditional: 0, independent unconditional: 420, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 970, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 75, dependent conditional: 53, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 936, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 41, dependent conditional: 19, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 936, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 41, dependent conditional: 19, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1035, independent: 895, independent conditional: 475, independent unconditional: 420, dependent: 140, dependent conditional: 118, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1035, independent: 895, independent conditional: 10, independent unconditional: 885, dependent: 140, dependent conditional: 32, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1035, independent: 895, independent conditional: 10, independent unconditional: 885, dependent: 140, dependent conditional: 32, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 471, independent: 427, independent conditional: 7, independent unconditional: 420, dependent: 44, dependent conditional: 18, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 471, independent: 416, independent conditional: 0, independent unconditional: 416, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 55, independent: 11, independent conditional: 7, independent unconditional: 4, dependent: 44, dependent conditional: 18, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 55, independent: 11, independent conditional: 7, independent unconditional: 4, dependent: 44, dependent conditional: 18, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 698, independent: 126, independent conditional: 70, independent unconditional: 56, dependent: 572, dependent conditional: 190, dependent unconditional: 382, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1035, independent: 468, independent conditional: 3, independent unconditional: 465, dependent: 96, dependent conditional: 14, dependent unconditional: 82, unknown: 471, unknown conditional: 25, unknown unconditional: 446] , Statistics on independence cache: Total cache size (in pairs): 471, Positive cache size: 427, Positive conditional cache size: 7, Positive unconditional cache size: 420, Negative cache size: 44, Negative conditional cache size: 18, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 551, Maximal queried relation: 4, Independence queries for same thread: 34 - PositiveResult [Line: 91]: 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, 69 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 497 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, 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! [2025-01-23 18:55:40,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE