./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX --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 2bbc774c97831725ad05d6c2dc910981cb4ce0a2559ec0561efc45418b96b7a4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 09:29:46,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 09:29:46,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-05 09:29:46,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 09:29:46,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 09:29:46,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 09:29:46,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 09:29:46,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 09:29:46,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 09:29:46,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 09:29:46,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 09:29:46,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 09:29:46,107 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 09:29:46,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 09:29:46,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 09:29:46,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 09:29:46,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 09:29:46,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 09:29:46,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 09:29:46,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:29:46,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 09:29:46,109 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 09:29:46,109 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX 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 -> 2bbc774c97831725ad05d6c2dc910981cb4ce0a2559ec0561efc45418b96b7a4 [2024-12-05 09:29:46,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 09:29:46,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 09:29:46,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 09:29:46,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 09:29:46,350 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 09:29:46,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-12-05 09:29:48,998 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/data/7a1c8bdea/4378a5ed5073469f83042b0bb07e4a82/FLAG1bd7d5c21 [2024-12-05 09:29:49,268 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 09:29:49,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-12-05 09:29:49,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/data/7a1c8bdea/4378a5ed5073469f83042b0bb07e4a82/FLAG1bd7d5c21 [2024-12-05 09:29:49,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/data/7a1c8bdea/4378a5ed5073469f83042b0bb07e4a82 [2024-12-05 09:29:49,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 09:29:49,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 09:29:49,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 09:29:49,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 09:29:49,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 09:29:49,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:29:49" (1/1) ... [2024-12-05 09:29:49,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267b1920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:49, skipping insertion in model container [2024-12-05 09:29:49,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:29:49" (1/1) ... [2024-12-05 09:29:49,620 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:29:49,764 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i[978,991] [2024-12-05 09:29:49,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:29:49,930 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 09:29:49,938 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i[978,991] [2024-12-05 09:29:49,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:29:50,005 INFO L204 MainTranslator]: Completed translation [2024-12-05 09:29:50,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50 WrapperNode [2024-12-05 09:29:50,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 09:29:50,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 09:29:50,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 09:29:50,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 09:29:50,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,036 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 133 [2024-12-05 09:29:50,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 09:29:50,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 09:29:50,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 09:29:50,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 09:29:50,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,054 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 09:29:50,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 09:29:50,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 09:29:50,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 09:29:50,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (1/1) ... [2024-12-05 09:29:50,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:29:50,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:29:50,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 09:29:50,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 09:29:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-05 09:29:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 09:29:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-12-05 09:29:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-12-05 09:29:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-12-05 09:29:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-12-05 09:29:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-12-05 09:29:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-12-05 09:29:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 09:29:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-05 09:29:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 09:29:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 09:29:50,123 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 09:29:50,234 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 09:29:50,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 09:29:50,493 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 09:29:50,493 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 09:29:50,681 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 09:29:50,682 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 09:29:50,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:29:50 BoogieIcfgContainer [2024-12-05 09:29:50,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 09:29:50,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 09:29:50,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 09:29:50,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 09:29:50,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:29:49" (1/3) ... [2024-12-05 09:29:50,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9e60e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:29:50, skipping insertion in model container [2024-12-05 09:29:50,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:50" (2/3) ... [2024-12-05 09:29:50,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9e60e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:29:50, skipping insertion in model container [2024-12-05 09:29:50,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:29:50" (3/3) ... [2024-12-05 09:29:50,691 INFO L128 eAbstractionObserver]: Analyzing ICFG safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-12-05 09:29:50,705 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 09:29:50,707 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-05 09:29:50,707 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 09:29:50,757 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 09:29:50,804 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:29:50,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 09:29:50,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:29:50,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 09:29:50,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 09:29:50,873 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 09:29:50,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 09:29:50,896 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;@35d38a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:29:50,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-05 09:30:03,211 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)] === [2024-12-05 09:30:03,212 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:30:03,212 INFO L139 ounterexampleChecker]: Examining path program with hash -383706222, occurence #1 [2024-12-05 09:30:03,212 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:30:03,212 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:30:03,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:30:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2090981735, now seen corresponding path program 1 times [2024-12-05 09:30:03,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:30:03,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519821091] [2024-12-05 09:30:03,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:30:03,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:30:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:30:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:30:04,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:30:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519821091] [2024-12-05 09:30:04,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519821091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:30:04,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:30:04,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 09:30:04,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129334807] [2024-12-05 09:30:04,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:30:04,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 09:30:04,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:30:04,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 09:30:04,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-05 09:30:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:30:04,744 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:30:04,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-12-05 09:30:04,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:30:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 09:30:36,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 09:30:36,451 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)] === [2024-12-05 09:30:36,451 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:30:36,451 INFO L139 ounterexampleChecker]: Examining path program with hash -1028177225, occurence #1 [2024-12-05 09:30:36,451 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:30:36,452 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:30:36,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:30:36,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1190015484, now seen corresponding path program 1 times [2024-12-05 09:30:36,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:30:36,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112813118] [2024-12-05 09:30:36,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:30:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:30:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:30:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:30:37,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:30:37,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112813118] [2024-12-05 09:30:37,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112813118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:30:37,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:30:37,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-05 09:30:37,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786317581] [2024-12-05 09:30:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:30:37,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 09:30:37,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:30:37,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 09:30:37,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-05 09:30:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:30:37,096 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:30:37,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-12-05 09:30:37,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 09:30:37,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:31:22,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:31:22,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:31:22,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-05 09:31:22,852 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)] === [2024-12-05 09:31:22,852 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:31:22,852 INFO L139 ounterexampleChecker]: Examining path program with hash -1229355397, occurence #1 [2024-12-05 09:31:22,852 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:31:22,852 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:31:22,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:31:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash 104702868, now seen corresponding path program 1 times [2024-12-05 09:31:22,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:31:22,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349372182] [2024-12-05 09:31:22,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:31:22,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:31:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:31:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:31:23,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:31:23,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349372182] [2024-12-05 09:31:23,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349372182] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:31:23,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:31:23,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 09:31:23,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992805903] [2024-12-05 09:31:23,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:31:23,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-05 09:31:23,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:31:23,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-05 09:31:23,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-05 09:31:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:31:23,011 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:31:23,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-12-05 09:31:23,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:31:23,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:31:23,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:31:37,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:31:37,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:31:37,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:31:37,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-05 09:31:37,553 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)] === [2024-12-05 09:31:37,553 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:31:37,553 INFO L139 ounterexampleChecker]: Examining path program with hash 464320351, occurence #1 [2024-12-05 09:31:37,553 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:31:37,553 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:31:37,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:31:37,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1570807631, now seen corresponding path program 1 times [2024-12-05 09:31:37,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:31:37,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288263441] [2024-12-05 09:31:37,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:31:37,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:31:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:31:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:31:38,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:31:38,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288263441] [2024-12-05 09:31:38,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288263441] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:31:38,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:31:38,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-05 09:31:38,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12762880] [2024-12-05 09:31:38,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:31:38,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 09:31:38,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:31:38,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 09:31:38,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-05 09:31:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:31:38,202 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:31:38,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) 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) [2024-12-05 09:31:38,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:31:38,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:31:38,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:31:38,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:31:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:31:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:31:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:31:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:31:43,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-05 09:31:43,204 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 09:31:43,204 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:31:43,204 INFO L139 ounterexampleChecker]: Examining path program with hash -247947768, occurence #1 [2024-12-05 09:31:43,204 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:31:43,204 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:31:43,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:31:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2083147473, now seen corresponding path program 2 times [2024-12-05 09:31:43,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:31:43,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608394152] [2024-12-05 09:31:43,205 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:31:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:31:43,271 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 09:31:43,272 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-05 09:31:43,272 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 09:31:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 09:31:43,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 09:31:43,379 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 09:31:43,380 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-12-05 09:31:43,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-12-05 09:31:43,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-12-05 09:31:43,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-12-05 09:31:43,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-05 09:31:43,387 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-12-05 09:31:43,388 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2024-12-05 09:31:43,443 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-05 09:31:43,443 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-05 09:31:43,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-12-05 09:31:43,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:31:43 BasicIcfg [2024-12-05 09:31:43,462 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-05 09:31:43,463 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 09:31:43,463 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 09:31:43,463 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 09:31:43,464 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:29:50" (3/4) ... [2024-12-05 09:31:43,464 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 09:31:43,536 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-12-05 09:31:43,583 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/witness.graphml [2024-12-05 09:31:43,584 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/witness.yml [2024-12-05 09:31:43,584 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 09:31:43,585 INFO L158 Benchmark]: Toolchain (without parser) took 113999.46ms. Allocated memory was 117.4MB in the beginning and 687.9MB in the end (delta: 570.4MB). Free memory was 91.2MB in the beginning and 294.2MB in the end (delta: -203.0MB). Peak memory consumption was 364.6MB. Max. memory is 16.1GB. [2024-12-05 09:31:43,585 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 09:31:43,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.73ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 67.6MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-05 09:31:43,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.72ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 65.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 09:31:43,586 INFO L158 Benchmark]: Boogie Preprocessor took 24.27ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 09:31:43,586 INFO L158 Benchmark]: RCFGBuilder took 620.40ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 66.3MB in the end (delta: -2.9MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-12-05 09:31:43,586 INFO L158 Benchmark]: TraceAbstraction took 112778.62ms. Allocated memory was 117.4MB in the beginning and 687.9MB in the end (delta: 570.4MB). Free memory was 65.8MB in the beginning and 308.7MB in the end (delta: -243.0MB). Peak memory consumption was 325.8MB. Max. memory is 16.1GB. [2024-12-05 09:31:43,587 INFO L158 Benchmark]: Witness Printer took 120.71ms. Allocated memory is still 687.9MB. Free memory was 308.7MB in the beginning and 294.2MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 09:31:43,588 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.73ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 67.6MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.72ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 65.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.27ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 620.40ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 66.3MB in the end (delta: -2.9MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * TraceAbstraction took 112778.62ms. Allocated memory was 117.4MB in the beginning and 687.9MB in the end (delta: 570.4MB). Free memory was 65.8MB in the beginning and 308.7MB in the end (delta: -243.0MB). Peak memory consumption was 325.8MB. Max. memory is 16.1GB. * Witness Printer took 120.71ms. Allocated memory is still 687.9MB. Free memory was 308.7MB in the beginning and 294.2MB in the end (delta: 14.5MB). 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: 11794, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 1031, dependent conditional: 987, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11559, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 796, dependent conditional: 752, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11559, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 796, dependent conditional: 752, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14089, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 3326, dependent conditional: 3282, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14089, independent: 10763, independent conditional: 394, independent unconditional: 10369, dependent: 3326, dependent conditional: 634, dependent unconditional: 2692, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14089, independent: 10763, independent conditional: 394, independent unconditional: 10369, dependent: 3326, dependent conditional: 634, dependent unconditional: 2692, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 763, independent: 679, independent conditional: 14, independent unconditional: 665, dependent: 84, dependent conditional: 36, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 763, independent: 657, independent conditional: 0, independent unconditional: 657, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 106, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 84, dependent conditional: 36, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 106, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 84, dependent conditional: 36, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 107982, independent: 8469, independent conditional: 8379, independent unconditional: 90, dependent: 99512, dependent conditional: 41674, dependent unconditional: 57839, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 14089, independent: 10084, independent conditional: 380, independent unconditional: 9704, dependent: 3242, dependent conditional: 598, dependent unconditional: 2644, unknown: 763, unknown conditional: 50, unknown unconditional: 713] , Statistics on independence cache: Total cache size (in pairs): 763, Positive cache size: 679, Positive conditional cache size: 14, Positive unconditional cache size: 665, Negative cache size: 84, Negative conditional cache size: 36, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12352, Maximal queried relation: 4, Independence queries for same thread: 235, Persistent sets #1 benchmarks: Persistent set computation time: 54.7s, Number of persistent set computation: 858, Number of trivial persistent sets: 552, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 709, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11794, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 1031, dependent conditional: 987, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11559, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 796, dependent conditional: 752, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11559, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 796, dependent conditional: 752, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14089, independent: 10763, independent conditional: 10098, independent unconditional: 665, dependent: 3326, dependent conditional: 3282, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14089, independent: 10763, independent conditional: 394, independent unconditional: 10369, dependent: 3326, dependent conditional: 634, dependent unconditional: 2692, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14089, independent: 10763, independent conditional: 394, independent unconditional: 10369, dependent: 3326, dependent conditional: 634, dependent unconditional: 2692, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 763, independent: 679, independent conditional: 14, independent unconditional: 665, dependent: 84, dependent conditional: 36, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 763, independent: 657, independent conditional: 0, independent unconditional: 657, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 106, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 84, dependent conditional: 36, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 106, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 84, dependent conditional: 36, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 107982, independent: 8469, independent conditional: 8379, independent unconditional: 90, dependent: 99512, dependent conditional: 41674, dependent unconditional: 57839, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 14089, independent: 10084, independent conditional: 380, independent unconditional: 9704, dependent: 3242, dependent conditional: 598, dependent unconditional: 2644, unknown: 763, unknown conditional: 50, unknown unconditional: 713] , Statistics on independence cache: Total cache size (in pairs): 763, Positive cache size: 679, Positive conditional cache size: 14, Positive unconditional cache size: 665, Negative cache size: 84, Negative conditional cache size: 36, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12352, Maximal queried relation: 4, Independence queries for same thread: 235 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L719] 0 int z = 0; [L720] 0 _Bool z$flush_delayed; [L721] 0 int z$mem_tmp; [L722] 0 _Bool z$r_buff0_thd0; [L723] 0 _Bool z$r_buff0_thd1; [L724] 0 _Bool z$r_buff0_thd2; [L725] 0 _Bool z$r_buff0_thd3; [L726] 0 _Bool z$r_buff1_thd0; [L727] 0 _Bool z$r_buff1_thd1; [L728] 0 _Bool z$r_buff1_thd2; [L729] 0 _Bool z$r_buff1_thd3; [L730] 0 _Bool z$read_delayed; [L731] 0 int *z$read_delayed_var; [L732] 0 int z$w_buff0; [L733] 0 _Bool z$w_buff0_used; [L734] 0 int z$w_buff1; [L735] 0 _Bool z$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L818] 0 pthread_t t2025; [L819] FCALL, FORK 0 pthread_create(&t2025, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2025=-3, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L820] 0 pthread_t t2026; [L821] FCALL, FORK 0 pthread_create(&t2026, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2025=-3, t2026=-2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L822] 0 pthread_t t2027; [L823] FCALL, FORK 0 pthread_create(&t2027, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2025=-3, t2026=-2, t2027=-1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L741] 1 z$w_buff1 = z$w_buff0 [L742] 1 z$w_buff0 = 2 [L743] 1 z$w_buff1_used = z$w_buff0_used [L744] 1 z$w_buff0_used = (_Bool)1 [L745] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L745] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L746] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L747] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L748] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L749] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L753] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L770] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L773] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L776] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L777] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L778] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L779] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L780] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L785] 2 return 0; [L790] 3 __unbuffered_p2_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L793] 3 z = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=1] [L796] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L797] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L798] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L799] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L800] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=1] [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=1] [L805] 3 return 0; [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=2] [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=2] [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2025=-3, t2026=-2, t2027=-1, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=2] [L827] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L827] RET 0 assume_abort_if_not(main$tmp_guard0) [L829] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L830] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L831] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L832] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L833] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2025=-3, t2026=-2, t2027=-1, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=2] [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 z$flush_delayed = weak$$choice2 [L839] 0 z$mem_tmp = z [L840] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L841] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L842] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L843] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L844] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L846] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p2_EAX == 1) [L848] 0 z = z$flush_delayed ? z$mem_tmp : z [L849] 0 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2025=-3, t2026=-2, t2027=-1, weak$$choice0=1, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=2] [L851] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=2] [L18] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=2] - UnprovableResult [Line: 821]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 823]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 819]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 64 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 112.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 109.3s, 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: 29, 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, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 680 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 RESULT: Ultimate proved your program to be incorrect! [2024-12-05 09:31:43,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c191315-937b-4bc7-9a89-29df2c148f8c/bin/ugemcutter-verify-L2ppAeDwQX/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE