./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1c4755c5 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/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i -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 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 11:23:23,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 11:23:23,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 11:23:23,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 11:23:23,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 11:23:23,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 11:23:23,708 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 11:23:23,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 11:23:23,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 11:23:23,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 11:23:23,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 11:23:23,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 11:23:23,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 11:23:23,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 11:23:23,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 11:23:23,710 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 11:23:23,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 11:23:23,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 11:23:23,711 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 11:23:23,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 11:23:23,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 11:23:23,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 11:23:23,711 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 11:23:23,712 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 11:23:23,712 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 -> 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2024-12-17 11:23:23,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 11:23:23,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 11:23:23,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 11:23:23,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 11:23:23,973 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 11:23:23,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-17 11:23:25,293 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/d2c922f1d/a3296522efaa43ebb041447651950a05/FLAGc53698558 [2024-12-17 11:23:25,618 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 11:23:25,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-17 11:23:25,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/d2c922f1d/a3296522efaa43ebb041447651950a05/FLAGc53698558 [2024-12-17 11:23:25,846 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/d2c922f1d/a3296522efaa43ebb041447651950a05 [2024-12-17 11:23:25,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 11:23:25,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 11:23:25,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 11:23:25,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 11:23:25,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 11:23:25,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:23:25" (1/1) ... [2024-12-17 11:23:25,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64812bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:25, skipping insertion in model container [2024-12-17 11:23:25,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:23:25" (1/1) ... [2024-12-17 11:23:25,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 11:23:26,041 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/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-12-17 11:23:26,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 11:23:26,213 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 11:23:26,223 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/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-12-17 11:23:26,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 11:23:26,301 INFO L204 MainTranslator]: Completed translation [2024-12-17 11:23:26,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26 WrapperNode [2024-12-17 11:23:26,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 11:23:26,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 11:23:26,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 11:23:26,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 11:23:26,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,344 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-12-17 11:23:26,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 11:23:26,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 11:23:26,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 11:23:26,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 11:23:26,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,360 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 11:23:26,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 11:23:26,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 11:23:26,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 11:23:26,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (1/1) ... [2024-12-17 11:23:26,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 11:23:26,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 11:23:26,411 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) [2024-12-17 11:23:26,413 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 [2024-12-17 11:23:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-17 11:23:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 11:23:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-12-17 11:23:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-12-17 11:23:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-12-17 11:23:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-12-17 11:23:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-12-17 11:23:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-12-17 11:23:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 11:23:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-17 11:23:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 11:23:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 11:23:26,437 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 11:23:26,541 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 11:23:26,543 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 11:23:26,680 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 11:23:26,680 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 11:23:26,773 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 11:23:26,774 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 11:23:26,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:23:26 BoogieIcfgContainer [2024-12-17 11:23:26,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 11:23:26,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 11:23:26,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 11:23:26,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 11:23:26,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:23:25" (1/3) ... [2024-12-17 11:23:26,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c54044a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:23:26, skipping insertion in model container [2024-12-17 11:23:26,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:23:26" (2/3) ... [2024-12-17 11:23:26,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c54044a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:23:26, skipping insertion in model container [2024-12-17 11:23:26,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:23:26" (3/3) ... [2024-12-17 11:23:26,782 INFO L128 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-17 11:23:26,798 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 11:23:26,799 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 38 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-17 11:23:26,799 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 11:23:26,846 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-17 11:23:26,893 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 11:23:26,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 11:23:26,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 11:23:26,895 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) [2024-12-17 11:23:26,896 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 [2024-12-17 11:23:26,960 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 11:23:26,975 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 11:23:26,981 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;@38ad8747, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 11:23:26,982 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 11:23:27,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 11:23:27,436 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 11:23:27,436 INFO L139 ounterexampleChecker]: Examining path program with hash 13531651, occurence #1 [2024-12-17 11:23:27,437 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 11:23:27,437 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 11:23:27,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 11:23:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1239721216, now seen corresponding path program 1 times [2024-12-17 11:23:27,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 11:23:27,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146187749] [2024-12-17 11:23:27,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 11:23:27,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 11:23:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 11:23:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 11:23:27,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 11:23:27,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146187749] [2024-12-17 11:23:27,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146187749] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 11:23:27,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 11:23:27,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 11:23:27,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292664276] [2024-12-17 11:23:27,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 11:23:27,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 11:23:27,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 11:23:27,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 11:23:27,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-17 11:23:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:27,977 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 11:23:27,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 11:23:27,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:28,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 11:23:28,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 11:23:28,224 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 11:23:28,224 INFO L139 ounterexampleChecker]: Examining path program with hash 486547665, occurence #1 [2024-12-17 11:23:28,224 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 11:23:28,224 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 11:23:28,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 11:23:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash 284982173, now seen corresponding path program 1 times [2024-12-17 11:23:28,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 11:23:28,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782759753] [2024-12-17 11:23:28,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 11:23:28,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 11:23:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 11:23:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 11:23:28,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 11:23:28,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782759753] [2024-12-17 11:23:28,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782759753] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 11:23:28,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 11:23:28,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-17 11:23:28,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374030612] [2024-12-17 11:23:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 11:23:28,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 11:23:28,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 11:23:28,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 11:23:28,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-17 11:23:28,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:28,479 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 11:23:28,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 11:23:28,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:28,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 11:23:29,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 11:23:29,067 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 11:23:29,067 INFO L139 ounterexampleChecker]: Examining path program with hash -924788604, occurence #1 [2024-12-17 11:23:29,067 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 11:23:29,067 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 11:23:29,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 11:23:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -87763239, now seen corresponding path program 2 times [2024-12-17 11:23:29,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 11:23:29,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394865607] [2024-12-17 11:23:29,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 11:23:29,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 11:23:29,087 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 11:23:29,088 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 11:23:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 11:23:29,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 11:23:29,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394865607] [2024-12-17 11:23:29,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394865607] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 11:23:29,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 11:23:29,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 11:23:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649472035] [2024-12-17 11:23:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 11:23:29,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 11:23:29,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 11:23:29,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 11:23:29,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-17 11:23:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:29,258 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 11:23:29,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 11:23:29,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-17 11:23:29,519 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 11:23:29,520 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 11:23:29,520 INFO L139 ounterexampleChecker]: Examining path program with hash 1455431738, occurence #1 [2024-12-17 11:23:29,520 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 11:23:29,520 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 11:23:29,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 11:23:29,521 INFO L85 PathProgramCache]: Analyzing trace with hash -393979249, now seen corresponding path program 3 times [2024-12-17 11:23:29,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 11:23:29,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780915108] [2024-12-17 11:23:29,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 11:23:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 11:23:29,552 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-17 11:23:29,553 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 11:23:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 11:23:29,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 11:23:29,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780915108] [2024-12-17 11:23:29,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780915108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 11:23:29,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 11:23:29,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 11:23:29,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525903783] [2024-12-17 11:23:29,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 11:23:29,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 11:23:29,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 11:23:29,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 11:23:29,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 11:23:29,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:29,667 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 11:23:29,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 11:23:29,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 11:23:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 11:23:29,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 11:23:29,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-12-17 11:23:29,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-12-17 11:23:29,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-12-17 11:23:29,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-12-17 11:23:29,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-17 11:23:29,859 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2024-12-17 11:23:29,861 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-17 11:23:29,861 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-17 11:23:29,873 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 [2024-12-17 11:23:29,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:23:29 BasicIcfg [2024-12-17 11:23:29,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-17 11:23:29,875 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-17 11:23:29,875 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-17 11:23:29,875 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-17 11:23:29,875 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:23:26" (3/4) ... [2024-12-17 11:23:29,877 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-17 11:23:29,880 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-12-17 11:23:29,880 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-12-17 11:23:29,880 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-12-17 11:23:29,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-12-17 11:23:29,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-12-17 11:23:29,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-17 11:23:29,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-17 11:23:29,939 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-12-17 11:23:29,939 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.yml [2024-12-17 11:23:29,940 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-17 11:23:29,940 INFO L158 Benchmark]: Toolchain (without parser) took 4091.23ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 48.2MB in the end (delta: 63.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2024-12-17 11:23:29,941 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 11:23:29,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.59ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 91.0MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-17 11:23:29,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.30ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 11:23:29,941 INFO L158 Benchmark]: Boogie Preprocessor took 33.29ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 88.2MB in the end (delta: 941.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 11:23:29,942 INFO L158 Benchmark]: RCFGBuilder took 395.56ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 70.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-17 11:23:29,942 INFO L158 Benchmark]: TraceAbstraction took 3097.65ms. Allocated memory is still 142.6MB. Free memory was 69.6MB in the beginning and 53.8MB in the end (delta: 15.8MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-12-17 11:23:29,942 INFO L158 Benchmark]: Witness Printer took 65.14ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 48.2MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 11:23:29,943 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.59ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 91.0MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.30ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.29ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 88.2MB in the end (delta: 941.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 395.56ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 70.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3097.65ms. Allocated memory is still 142.6MB. Free memory was 69.6MB in the beginning and 53.8MB in the end (delta: 15.8MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 65.14ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 48.2MB in the end (delta: 5.6MB). 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: 9456, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 197, dependent conditional: 178, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9456, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 197, dependent conditional: 178, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9456, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 197, dependent conditional: 178, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10781, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 1522, dependent conditional: 1503, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10781, independent: 9259, independent conditional: 323, independent unconditional: 8936, dependent: 1522, dependent conditional: 106, dependent unconditional: 1416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10781, independent: 9259, independent conditional: 323, independent unconditional: 8936, dependent: 1522, dependent conditional: 106, dependent unconditional: 1416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 673, independent: 650, independent conditional: 10, independent unconditional: 640, dependent: 23, dependent conditional: 4, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 673, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 23, dependent conditional: 4, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 23, dependent conditional: 4, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 789, independent: 294, independent conditional: 177, independent unconditional: 118, dependent: 495, dependent conditional: 67, dependent unconditional: 428, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 10781, independent: 8609, independent conditional: 313, independent unconditional: 8296, dependent: 1499, dependent conditional: 102, dependent unconditional: 1397, unknown: 673, unknown conditional: 14, unknown unconditional: 659] , Statistics on independence cache: Total cache size (in pairs): 673, Positive cache size: 650, Positive conditional cache size: 10, Positive unconditional cache size: 640, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9693, Maximal queried relation: 4, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.7s, Number of persistent set computation: 608, Number of trivial persistent sets: 339, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 659, independent: 640, independent conditional: 0, independent unconditional: 640, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9456, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 197, dependent conditional: 178, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9456, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 197, dependent conditional: 178, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9456, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 197, dependent conditional: 178, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10781, independent: 9259, independent conditional: 8619, independent unconditional: 640, dependent: 1522, dependent conditional: 1503, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10781, independent: 9259, independent conditional: 323, independent unconditional: 8936, dependent: 1522, dependent conditional: 106, dependent unconditional: 1416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10781, independent: 9259, independent conditional: 323, independent unconditional: 8936, dependent: 1522, dependent conditional: 106, dependent unconditional: 1416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 673, independent: 650, independent conditional: 10, independent unconditional: 640, dependent: 23, dependent conditional: 4, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 673, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 23, dependent conditional: 4, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 23, dependent conditional: 4, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 789, independent: 294, independent conditional: 177, independent unconditional: 118, dependent: 495, dependent conditional: 67, dependent unconditional: 428, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 10781, independent: 8609, independent conditional: 313, independent unconditional: 8296, dependent: 1499, dependent conditional: 102, dependent unconditional: 1397, unknown: 673, unknown conditional: 14, unknown unconditional: 659] , Statistics on independence cache: Total cache size (in pairs): 673, Positive cache size: 650, Positive conditional cache size: 10, Positive unconditional cache size: 640, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9693, Maximal queried relation: 4, Independence queries for same thread: 0 - PositiveResult [Line: 18]: 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 7 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 3, 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: 23, 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, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 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, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-17 11:23:29,959 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