./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 01849734 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-0184973-m [2025-04-24 17:08:12,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 17:08:12,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 17:08:12,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 17:08:12,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 17:08:12,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 17:08:12,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 17:08:12,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 17:08:12,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 17:08:12,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 17:08:12,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 17:08:12,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 17:08:12,285 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 17:08:12,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 17:08:12,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 17:08:12,286 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 17:08:12,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 17:08:12,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 17:08:12,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 17:08:12,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 17:08:12,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 17:08:12,287 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 17:08:12,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 17:08:12,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 17:08:12,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 17:08:12,288 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 17:08:12,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a [2025-04-24 17:08:12,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 17:08:12,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 17:08:12,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 17:08:12,529 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 17:08:12,530 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 17:08:12,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-04-24 17:08:13,838 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3d7fafb48/118e31baacbb4129b5f43191973efaf1/FLAGc3e961ab6 [2025-04-24 17:08:13,999 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 17:08:13,999 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-04-24 17:08:14,007 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3d7fafb48/118e31baacbb4129b5f43191973efaf1/FLAGc3e961ab6 [2025-04-24 17:08:14,840 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3d7fafb48/118e31baacbb4129b5f43191973efaf1 [2025-04-24 17:08:14,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 17:08:14,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 17:08:14,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 17:08:14,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 17:08:14,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 17:08:14,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 05:08:14" (1/1) ... [2025-04-24 17:08:14,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f215cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:14, skipping insertion in model container [2025-04-24 17:08:14,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 05:08:14" (1/1) ... [2025-04-24 17:08:14,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 17:08:15,010 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[3922,3935] [2025-04-24 17:08:15,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 17:08:15,019 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 17:08:15,049 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[3922,3935] [2025-04-24 17:08:15,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 17:08:15,059 INFO L204 MainTranslator]: Completed translation [2025-04-24 17:08:15,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15 WrapperNode [2025-04-24 17:08:15,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 17:08:15,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 17:08:15,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 17:08:15,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 17:08:15,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,100 INFO L138 Inliner]: procedures = 22, calls = 22, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 223 [2025-04-24 17:08:15,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 17:08:15,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 17:08:15,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 17:08:15,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 17:08:15,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,120 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 17:08:15,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 17:08:15,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 17:08:15,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 17:08:15,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (1/1) ... [2025-04-24 17:08:15,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 17:08:15,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:08:15,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 17:08:15,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 17:08:15,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 17:08:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 17:08:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 17:08:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 17:08:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 17:08:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-24 17:08:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-24 17:08:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-24 17:08:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-24 17:08:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 17:08:15,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-24 17:08:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-24 17:08:15,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-24 17:08:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-24 17:08:15,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 17:08:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 17:08:15,180 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 17:08:15,267 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 17:08:15,268 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 17:08:15,501 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 17:08:15,501 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 17:08:15,627 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 17:08:15,627 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-04-24 17:08:15,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 05:08:15 BoogieIcfgContainer [2025-04-24 17:08:15,628 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 17:08:15,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 17:08:15,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 17:08:15,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 17:08:15,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 05:08:14" (1/3) ... [2025-04-24 17:08:15,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b0364a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 05:08:15, skipping insertion in model container [2025-04-24 17:08:15,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 05:08:15" (2/3) ... [2025-04-24 17:08:15,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b0364a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 05:08:15, skipping insertion in model container [2025-04-24 17:08:15,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 05:08:15" (3/3) ... [2025-04-24 17:08:15,635 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2025-04-24 17:08:15,644 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 17:08:15,646 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier-loop.wvr.c that has 7 procedures, 95 locations, 96 edges, 1 initial locations, 4 loop locations, and 1 error locations. [2025-04-24 17:08:15,646 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 17:08:15,725 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-04-24 17:08:15,757 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:08:15,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 17:08:15,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 17:08:15,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 17:08:15,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 17:08:15,836 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 17:08:15,848 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork3 ======== [2025-04-24 17:08:15,853 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e38c1f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:08:15,854 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-24 17:08:16,309 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-04-24 17:08:16,310 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-24 17:08:16,317 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-04-24 17:08:16,318 INFO L320 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork3 was SAFE,SAFE (1/3) [2025-04-24 17:08:16,322 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:08:16,324 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 17:08:16,324 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2025-04-24 17:08:16,325 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e38c1f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:08:16,325 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-24 17:08:16,369 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-04-24 17:08:16,369 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-24 17:08:16,370 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-04-24 17:08:16,370 INFO L320 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE (2/3) [2025-04-24 17:08:16,373 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:08:16,374 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 17:08:16,374 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 17:08:16,374 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e38c1f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 17:08:16,374 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 17:08:16,400 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:16,400 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:16,401 INFO L139 ounterexampleChecker]: Examining path program with hash 214554046, occurence #1 [2025-04-24 17:08:16,401 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:16,401 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:16,403 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:16,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1174979261, now seen corresponding path program 1 times [2025-04-24 17:08:16,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:16,409 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520473527] [2025-04-24 17:08:16,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:08:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:16,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-24 17:08:16,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-24 17:08:16,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:08:16,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:08:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:08:16,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:08:16,586 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520473527] [2025-04-24 17:08:16,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520473527] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:08:16,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:08:16,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 17:08:16,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583622040] [2025-04-24 17:08:16,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:08:16,592 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-24 17:08:16,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:08:16,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-24 17:08:16,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-24 17:08:16,606 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:16,607 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:08:16,608 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 17:08:16,608 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:19,279 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:19,279 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 17:08:19,280 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:19,280 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:19,281 INFO L139 ounterexampleChecker]: Examining path program with hash 1845324000, occurence #1 [2025-04-24 17:08:19,281 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:19,281 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:19,281 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:19,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1346487597, now seen corresponding path program 1 times [2025-04-24 17:08:19,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:19,282 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110407289] [2025-04-24 17:08:19,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:08:19,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:19,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 495 statements into 1 equivalence classes. [2025-04-24 17:08:19,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 495 of 495 statements. [2025-04-24 17:08:19,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:08:19,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:08:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:08:19,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:08:19,713 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110407289] [2025-04-24 17:08:19,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110407289] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:08:19,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:08:19,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 17:08:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46989047] [2025-04-24 17:08:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:08:19,713 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 17:08:19,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:08:19,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 17:08:19,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 17:08:19,717 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:19,719 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:08:19,719 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 17:08:19,719 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:19,719 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:20,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:20,091 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:20,092 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 17:08:20,092 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:20,092 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:20,092 INFO L139 ounterexampleChecker]: Examining path program with hash 967246785, occurence #1 [2025-04-24 17:08:20,092 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:20,092 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:20,093 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:20,093 INFO L85 PathProgramCache]: Analyzing trace with hash -422575649, now seen corresponding path program 2 times [2025-04-24 17:08:20,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:20,093 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725103449] [2025-04-24 17:08:20,094 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 17:08:20,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:20,122 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 383 statements into 2 equivalence classes. [2025-04-24 17:08:20,138 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 231 of 383 statements. [2025-04-24 17:08:20,138 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 17:08:20,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:08:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-24 17:08:20,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:08:20,272 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725103449] [2025-04-24 17:08:20,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725103449] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:08:20,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:08:20,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 17:08:20,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031884032] [2025-04-24 17:08:20,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:08:20,273 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 17:08:20,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:08:20,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 17:08:20,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 17:08:20,273 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:20,273 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:08:20,274 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 17:08:20,274 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:20,274 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:20,274 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:22,660 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:22,660 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:22,660 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:22,660 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 17:08:22,661 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:22,661 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:22,661 INFO L139 ounterexampleChecker]: Examining path program with hash -1551207880, occurence #1 [2025-04-24 17:08:22,661 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:22,661 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:22,662 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:22,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2041688963, now seen corresponding path program 3 times [2025-04-24 17:08:22,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:22,662 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874905162] [2025-04-24 17:08:22,663 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 17:08:22,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:22,692 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 591 statements into 3 equivalence classes. [2025-04-24 17:08:22,695 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 295 of 591 statements. [2025-04-24 17:08:22,696 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-24 17:08:22,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:08:22,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-04-24 17:08:22,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:08:22,844 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874905162] [2025-04-24 17:08:22,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874905162] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:08:22,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:08:22,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 17:08:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699934694] [2025-04-24 17:08:22,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:08:22,845 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 17:08:22,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:08:22,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 17:08:22,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 17:08:22,847 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:22,847 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:08:22,847 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 17:08:22,847 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:22,847 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:22,847 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:22,847 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:23,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:23,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:23,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:23,597 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:23,597 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 17:08:23,597 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:23,597 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:23,597 INFO L139 ounterexampleChecker]: Examining path program with hash -946045136, occurence #1 [2025-04-24 17:08:23,597 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:23,597 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:23,598 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash -658444335, now seen corresponding path program 4 times [2025-04-24 17:08:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:23,598 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482585664] [2025-04-24 17:08:23,598 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 17:08:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:23,610 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-04-24 17:08:23,648 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-04-24 17:08:23,649 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 17:08:23,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:08:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-24 17:08:23,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:08:23,740 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482585664] [2025-04-24 17:08:23,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482585664] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:08:23,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:08:23,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 17:08:23,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518092727] [2025-04-24 17:08:23,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:08:23,740 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 17:08:23,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:08:23,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 17:08:23,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 17:08:23,741 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:23,741 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:08:23,741 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 17:08:23,741 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:23,741 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:23,741 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:23,741 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:23,741 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,382 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,382 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,382 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,382 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,383 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,383 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 17:08:24,383 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:24,383 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:24,383 INFO L139 ounterexampleChecker]: Examining path program with hash 848787503, occurence #1 [2025-04-24 17:08:24,383 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:24,383 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:24,383 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:24,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1683253364, now seen corresponding path program 5 times [2025-04-24 17:08:24,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:24,384 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119225803] [2025-04-24 17:08:24,384 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 17:08:24,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:24,398 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 135 statements into 1 equivalence classes. [2025-04-24 17:08:24,406 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-04-24 17:08:24,407 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 17:08:24,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:08:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:08:24,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:08:24,465 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119225803] [2025-04-24 17:08:24,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119225803] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:08:24,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:08:24,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 17:08:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130876126] [2025-04-24 17:08:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:08:24,465 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 17:08:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:08:24,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 17:08:24,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 17:08:24,466 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,466 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:08:24,466 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 17:08:24,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,863 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,863 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,863 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,863 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,863 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,864 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,864 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-24 17:08:24,864 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:24,864 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:24,864 INFO L139 ounterexampleChecker]: Examining path program with hash -1107095724, occurence #1 [2025-04-24 17:08:24,864 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:24,864 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:24,865 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:24,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1465280675, now seen corresponding path program 1 times [2025-04-24 17:08:24,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:24,865 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997863203] [2025-04-24 17:08:24,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 17:08:24,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:24,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-04-24 17:08:24,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-04-24 17:08:24,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:08:24,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 17:08:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 17:08:24,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 17:08:24,964 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997863203] [2025-04-24 17:08:24,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997863203] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 17:08:24,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 17:08:24,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 17:08:24,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860052315] [2025-04-24 17:08:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 17:08:24,965 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 17:08:24,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 17:08:24,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 17:08:24,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 17:08:24,965 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,965 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 17:08:24,965 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 17:08:24,965 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:24,965 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,966 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,966 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,966 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,966 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:24,966 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:25,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 17:08:25,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:25,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:25,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:25,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:25,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:25,206 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 17:08:25,207 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-24 17:08:25,207 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 17:08:25,207 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 17:08:25,207 INFO L139 ounterexampleChecker]: Examining path program with hash 339941016, occurence #1 [2025-04-24 17:08:25,207 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 17:08:25,207 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 17:08:25,207 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 17:08:25,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1139542813, now seen corresponding path program 2 times [2025-04-24 17:08:25,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 17:08:25,207 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757554898] [2025-04-24 17:08:25,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 17:08:25,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 17:08:25,213 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 1 equivalence classes. [2025-04-24 17:08:25,240 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-04-24 17:08:25,240 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 17:08:25,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 17:08:25,240 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-24 17:08:25,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-04-24 17:08:25,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-04-24 17:08:25,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 17:08:25,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 17:08:25,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-24 17:08:25,300 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-24 17:08:25,300 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-24 17:08:25,300 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-24 17:08:25,300 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-24 17:08:25,301 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-24 17:08:25,302 INFO L422 BasicCegarLoop]: Path program histogram: [5, 2, 1] [2025-04-24 17:08:25,302 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (3/3) [2025-04-24 17:08:25,398 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 17:08:25,402 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 17:08:25,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-24 17:08:25,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 05:08:25 BasicIcfg [2025-04-24 17:08:25,412 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 17:08:25,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 17:08:25,413 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 17:08:25,413 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 17:08:25,414 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 05:08:15" (3/4) ... [2025-04-24 17:08:25,415 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-24 17:08:25,495 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 25. [2025-04-24 17:08:25,546 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 17:08:25,546 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 17:08:25,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 17:08:25,547 INFO L158 Benchmark]: Toolchain (without parser) took 10703.75ms. Allocated memory was 83.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 59.5MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 419.5MB. Max. memory is 16.1GB. [2025-04-24 17:08:25,547 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 17:08:25,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.98ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 44.7MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-24 17:08:25,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.51ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 42.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 17:08:25,548 INFO L158 Benchmark]: Boogie Preprocessor took 26.66ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 40.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 17:08:25,549 INFO L158 Benchmark]: RCFGBuilder took 500.94ms. Allocated memory is still 83.9MB. Free memory was 40.8MB in the beginning and 35.2MB in the end (delta: 5.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2025-04-24 17:08:25,549 INFO L158 Benchmark]: TraceAbstraction took 9782.11ms. Allocated memory was 83.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 34.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 364.4MB. Max. memory is 16.1GB. [2025-04-24 17:08:25,549 INFO L158 Benchmark]: Witness Printer took 133.25ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.1GB in the end (delta: 35.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-24 17:08:25,550 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.98ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 44.7MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.51ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 42.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.66ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 40.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 500.94ms. Allocated memory is still 83.9MB. Free memory was 40.8MB in the beginning and 35.2MB in the end (delta: 5.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9782.11ms. Allocated memory was 83.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 34.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 364.4MB. Max. memory is 16.1GB. * Witness Printer took 133.25ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.1GB in the end (delta: 35.9MB). Peak memory consumption was 33.6MB. 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: 10811, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 597, dependent conditional: 543, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 0, independent unconditional: 10214, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 0, independent unconditional: 10214, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4819, independent: 4765, independent conditional: 0, independent unconditional: 4765, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4819, independent: 4756, independent conditional: 0, independent unconditional: 4756, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 63, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 108, dependent conditional: 0, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 10283, independent: 5449, independent conditional: 0, independent unconditional: 5449, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 4819, unknown conditional: 0, unknown unconditional: 4819] , Statistics on independence cache: Total cache size (in pairs): 4819, Positive cache size: 4765, Positive conditional cache size: 0, Positive unconditional cache size: 4765, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5256, Maximal queried relation: 0, Independence queries for same thread: 528, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 437, Number of trivial persistent sets: 36, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5027, independent: 4973, independent conditional: 0, independent unconditional: 4973, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10811, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 597, dependent conditional: 543, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 5241, independent unconditional: 4973, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 0, independent unconditional: 10214, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10283, independent: 10214, independent conditional: 0, independent unconditional: 10214, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4819, independent: 4765, independent conditional: 0, independent unconditional: 4765, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4819, independent: 4756, independent conditional: 0, independent unconditional: 4756, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 63, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 108, dependent conditional: 0, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 10283, independent: 5449, independent conditional: 0, independent unconditional: 5449, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 4819, unknown conditional: 0, unknown unconditional: 4819] , Statistics on independence cache: Total cache size (in pairs): 4819, Positive cache size: 4765, Positive conditional cache size: 0, Positive unconditional cache size: 4765, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5256, Maximal queried relation: 0, Independence queries for same thread: 528 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6758, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 271, dependent conditional: 217, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 0, independent unconditional: 6487, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 0, independent unconditional: 6487, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 283, independent: 283, independent conditional: 0, independent unconditional: 283, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 283, independent: 283, independent conditional: 0, independent unconditional: 283, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 6556, independent: 6204, independent conditional: 0, independent unconditional: 6204, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 283, unknown conditional: 0, unknown unconditional: 283] , Statistics on independence cache: Total cache size (in pairs): 5102, Positive cache size: 5048, Positive conditional cache size: 0, Positive unconditional cache size: 5048, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1780, Maximal queried relation: 0, Independence queries for same thread: 202, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 156, Number of trivial persistent sets: 22, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4776, independent: 4722, independent conditional: 0, independent unconditional: 4722, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6758, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 271, dependent conditional: 217, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 1765, independent unconditional: 4722, dependent: 69, dependent conditional: 15, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 0, independent unconditional: 6487, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6556, independent: 6487, independent conditional: 0, independent unconditional: 6487, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 283, independent: 283, independent conditional: 0, independent unconditional: 283, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 283, independent: 283, independent conditional: 0, independent unconditional: 283, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 6556, independent: 6204, independent conditional: 0, independent unconditional: 6204, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 283, unknown conditional: 0, unknown unconditional: 283] , Statistics on independence cache: Total cache size (in pairs): 5102, Positive cache size: 5048, Positive conditional cache size: 0, Positive unconditional cache size: 5048, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1780, Maximal queried relation: 0, Independence queries for same thread: 202 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 813709, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 77690, dependent conditional: 77612, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 752646, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 16627, dependent conditional: 16549, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 752646, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 16627, dependent conditional: 16549, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 780693, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 44674, dependent conditional: 44596, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 780693, independent: 736019, independent conditional: 204, independent unconditional: 735815, dependent: 44674, dependent conditional: 3794, dependent unconditional: 40880, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 780693, independent: 736019, independent conditional: 204, independent unconditional: 735815, dependent: 44674, dependent conditional: 3794, dependent unconditional: 40880, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2294, independent: 2255, independent conditional: 2, independent unconditional: 2253, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2294, independent: 2241, independent conditional: 0, independent unconditional: 2241, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 53, independent: 14, independent conditional: 2, independent unconditional: 12, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 53, independent: 14, independent conditional: 2, independent unconditional: 12, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, independent: 13, independent conditional: 2, independent unconditional: 10, dependent: 45, dependent conditional: 14, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 780693, independent: 733764, independent conditional: 202, independent unconditional: 733562, dependent: 44635, dependent conditional: 3785, dependent unconditional: 40850, unknown: 2294, unknown conditional: 11, unknown unconditional: 2283] , Statistics on independence cache: Total cache size (in pairs): 7396, Positive cache size: 7303, Positive conditional cache size: 2, Positive unconditional cache size: 7301, Negative cache size: 93, Negative conditional cache size: 9, Negative unconditional cache size: 84, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 768333, Maximal queried relation: 4, Independence queries for same thread: 61063, Persistent sets #1 benchmarks: Persistent set computation time: 1.3s, Number of persistent set computation: 41681, Number of trivial persistent sets: 41667, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8362, independent: 8284, independent conditional: 0, independent unconditional: 8284, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 813709, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 77690, dependent conditional: 77612, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 752646, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 16627, dependent conditional: 16549, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 752646, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 16627, dependent conditional: 16549, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 780693, independent: 736019, independent conditional: 727735, independent unconditional: 8284, dependent: 44674, dependent conditional: 44596, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 780693, independent: 736019, independent conditional: 204, independent unconditional: 735815, dependent: 44674, dependent conditional: 3794, dependent unconditional: 40880, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 780693, independent: 736019, independent conditional: 204, independent unconditional: 735815, dependent: 44674, dependent conditional: 3794, dependent unconditional: 40880, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2294, independent: 2255, independent conditional: 2, independent unconditional: 2253, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2294, independent: 2241, independent conditional: 0, independent unconditional: 2241, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 53, independent: 14, independent conditional: 2, independent unconditional: 12, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 53, independent: 14, independent conditional: 2, independent unconditional: 12, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, independent: 13, independent conditional: 2, independent unconditional: 10, dependent: 45, dependent conditional: 14, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 780693, independent: 733764, independent conditional: 202, independent unconditional: 733562, dependent: 44635, dependent conditional: 3785, dependent unconditional: 40850, unknown: 2294, unknown conditional: 11, unknown unconditional: 2283] , Statistics on independence cache: Total cache size (in pairs): 7396, Positive cache size: 7303, Positive conditional cache size: 2, Positive unconditional cache size: 7301, Negative cache size: 93, Negative conditional cache size: 9, Negative unconditional cache size: 84, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 768333, Maximal queried relation: 4, Independence queries for same thread: 61063 - CounterExampleResult [Line: 171]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L36] 0 _Atomic unsigned int x_0, y_1, x_8, y_9; [L37] 0 _Atomic _Bool f1_2, f2_3, f1_10, f2_11; [L38] 0 unsigned int temp_4, temp_5, temp_6, temp_7, temp_12, temp_13, temp_14, temp_15; [L142] 0 pthread_t t1, t4; [L145] 0 x_0 = __VERIFIER_nondet_uint() VAL [f1_10=0, f1_2=0, f2_11=0, f2_3=0, temp_12=0, temp_13=0, temp_14=0, temp_15=0, temp_4=0, temp_5=0, temp_6=0, temp_7=0, x_0=-1, x_8=0, y_1=0, y_9=0] [L146] 0 y_1 = __VERIFIER_nondet_uint() VAL [f1_10=0, f1_2=0, f2_11=0, f2_3=0, temp_12=0, temp_13=0, temp_14=0, temp_15=0, temp_4=0, temp_5=0, temp_6=0, temp_7=0, x_0=-1, x_8=0, y_1=3, y_9=0] [L147] 0 x_8 = __VERIFIER_nondet_uint() VAL [f1_10=0, f1_2=0, f2_11=0, f2_3=0, temp_12=0, temp_13=0, temp_14=0, temp_15=0, temp_4=0, temp_5=0, temp_6=0, temp_7=0, x_0=-1, x_8=4294967295, y_1=3, y_9=0] [L148] 0 y_9 = __VERIFIER_nondet_uint() VAL [f1_10=0, f1_2=0, f2_11=0, f2_3=0, temp_12=0, temp_13=0, temp_14=0, temp_15=0, temp_4=0, temp_5=0, temp_6=0, temp_7=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L149] 0 temp_4 = __VERIFIER_nondet_uint() [L150] 0 temp_5 = __VERIFIER_nondet_uint() [L151] 0 temp_6 = __VERIFIER_nondet_uint() [L152] 0 temp_7 = __VERIFIER_nondet_uint() [L153] 0 temp_12 = __VERIFIER_nondet_uint() [L154] 0 temp_13 = __VERIFIER_nondet_uint() [L155] 0 temp_14 = __VERIFIER_nondet_uint() [L156] 0 temp_15 = __VERIFIER_nondet_uint() [L157] 0 f1_2 = __VERIFIER_nondet_bool() VAL [f1_10=0, f1_2=0, f2_11=0, f2_3=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L158] 0 f2_3 = __VERIFIER_nondet_bool() VAL [f1_10=0, f1_2=0, f2_11=0, f2_3=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L159] 0 f1_10 = __VERIFIER_nondet_bool() VAL [f1_10=1, f1_2=0, f2_11=0, f2_3=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L160] 0 f2_11 = __VERIFIER_nondet_bool() VAL [f1_10=1, f1_2=0, f2_11=1, f2_3=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L163] CALL 0 assume_abort_if_not( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) [L33] COND FALSE 0 !(!cond) [L163] RET 0 assume_abort_if_not( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) [L165] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\at(_argptr, Pre)={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t1=-5, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L78] 1 pthread_t t2, t3; VAL [\at(_argptr, Pre)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L80] 1 f1_2 = 0 VAL [\at(_argptr, Pre)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L81] 1 f2_3 = 0 VAL [\at(_argptr, Pre)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L83] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\at(_argptr, Pre)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t2=-4, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L84] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\at(_argptr, Pre)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L166] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L128] 4 pthread_t t5, t6; VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L130] 4 f1_10 = 0 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L131] 4 f2_11 = 0 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L133] FCALL, FORK 4 pthread_create(&t5, 0, thread5, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L134] FCALL, FORK 4 pthread_create(&t6, 0, thread6, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L42] COND TRUE 2 __VERIFIER_nondet_bool() [L43] 2 temp_4 = x_0 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, x_0=-1, x_8=4294967295, y_1=3, y_9=-4294967293] [L44] 2 x_0 = temp_4 + 1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, x_0=0, x_8=4294967295, y_1=3, y_9=-4294967293] [L46] 2 f1_2 = 1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=1, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, x_0=0, x_8=4294967295, y_1=3, y_9=-4294967293] [L60] COND TRUE 3 __VERIFIER_nondet_bool() [L61] 3 temp_6 = y_1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=1, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_6=3, x_0=0, x_8=4294967295, y_1=3, y_9=-4294967293] [L62] 3 y_1 = temp_6 + 1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=1, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_6=3, x_0=0, x_8=4294967295, y_1=4, y_9=-4294967293] [L64] 3 f2_3 = 1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=1, f2_11=0, f2_3=1, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_6=3, x_0=0, x_8=4294967295, y_1=4, y_9=-4294967293] [L47] CALL 2 assume_abort_if_not(f2_3) [L33] COND FALSE 2 !(!cond) [L47] RET 2 assume_abort_if_not(f2_3) [L49] 2 temp_5 = y_1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=1, f2_11=0, f2_3=1, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, x_0=0, x_8=4294967295, y_1=4, y_9=-4294967293] [L50] 2 y_1 = temp_5 + 1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=1, f2_11=0, f2_3=1, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, x_0=0, x_8=4294967295, y_1=5, y_9=-4294967293] [L65] CALL 3 assume_abort_if_not(f1_2) [L33] COND FALSE 3 !(!cond) [L65] RET 3 assume_abort_if_not(f1_2) [L67] 3 temp_7 = x_0 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=1, f2_11=0, f2_3=1, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=0, x_8=4294967295, y_1=5, y_9=-4294967293] [L52] 2 f1_2 = 0 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=1, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=0, x_8=4294967295, y_1=5, y_9=-4294967293] [L68] 3 x_0 = temp_7 + 1 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=1, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L70] 3 f2_3 = 0 VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L53] CALL 2 assume_abort_if_not(!f2_3) [L33] COND FALSE 2 !(!cond) [L53] RET 2 assume_abort_if_not(!f2_3) [L71] CALL 3 assume_abort_if_not(!f1_2) [L33] COND FALSE 3 !(!cond) [L71] RET 3 assume_abort_if_not(!f1_2) [L92] COND FALSE 5 !(__VERIFIER_nondet_bool()) [L106] 5 return 0; [L135] FCALL, JOIN 5 pthread_join(t5, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L110] COND FALSE 6 !(__VERIFIER_nondet_bool()) [L124] 6 return 0; [L136] FCALL, JOIN 6 pthread_join(t6, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L138] 4 return 0; [L42] COND FALSE 2 !(__VERIFIER_nondet_bool()) [L56] 2 return 0; [L85] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L60] COND FALSE 3 !(__VERIFIER_nondet_bool()) [L74] 3 return 0; [L86] FCALL, JOIN 3 pthread_join(t3, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L88] 1 return 0; [L167] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \result={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L168] FCALL, JOIN 4 pthread_join(t4, 0) VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \result={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] [L170] CALL 0 assume_abort_if_not( !( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) ) [L33] COND FALSE 0 !(!cond) [L170] RET 0 assume_abort_if_not( !( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) ) [L171] 0 reach_error() VAL [\at(_argptr, Pre)={0:0}, \at(_argptr, Pre)={0:0}, \result={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, t5=-1, t6=0, temp_4=-1, temp_5=4, temp_6=3, temp_7=0, x_0=1, x_8=4294967295, y_1=5, y_9=-4294967293] - UnprovableResult [Line: 166]: 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: 165]: 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: thread4Thread1of1ForFork3 with 1 thread instances CFG has 13 procedures, 173 locations, 204 edges, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.5s, 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: 0, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork1 with 1 thread instances CFG has 13 procedures, 173 locations, 204 edges, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, 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: 0, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 13 procedures, 173 locations, 204 edges, 11 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 7.5s, 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: 20, 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, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1980 NumberOfCodeBlocks, 1532 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1894 ConstructedInterpolants, 0 QuantifiedInterpolants, 2088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2025-04-24 17:08:25,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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