./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/twostage_3.i --full-output --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1c4755c5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/twostage_3.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 17:21:53,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 17:21:53,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 17:21:53,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 17:21:53,242 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 17:21:53,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 17:21:53,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 17:21:53,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 17:21:53,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 17:21:53,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 17:21:53,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 17:21:53,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 17:21:53,265 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 17:21:53,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 17:21:53,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 17:21:53,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 17:21:53,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 17:21:53,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 17:21:53,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 17:21:53,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 17:21:53,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 17:21:53,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 17:21:53,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 17:21:53,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 17:21:53,487 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 17:21:53,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/twostage_3.i [2024-12-17 17:21:54,608 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/0c18244fb/90aaa59d60df42ff924c9aa23431e9ee/FLAGc5807b31b [2024-12-17 17:21:54,916 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 17:21:54,917 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/twostage_3.i [2024-12-17 17:21:54,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/0c18244fb/90aaa59d60df42ff924c9aa23431e9ee/FLAGc5807b31b [2024-12-17 17:21:54,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/0c18244fb/90aaa59d60df42ff924c9aa23431e9ee [2024-12-17 17:21:54,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 17:21:54,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 17:21:54,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 17:21:54,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 17:21:54,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 17:21:54,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:21:54" (1/1) ... [2024-12-17 17:21:54,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aec7605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:54, skipping insertion in model container [2024-12-17 17:21:54,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:21:54" (1/1) ... [2024-12-17 17:21:54,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 17:21:55,280 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-12-17 17:21:55,294 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:21:55,294 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:21:55,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 17:21:55,300 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 17:21:55,331 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-12-17 17:21:55,337 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:21:55,337 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:21:55,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 17:21:55,389 INFO L204 MainTranslator]: Completed translation [2024-12-17 17:21:55,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55 WrapperNode [2024-12-17 17:21:55,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 17:21:55,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 17:21:55,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 17:21:55,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 17:21:55,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,417 INFO L138 Inliner]: procedures = 373, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 128 [2024-12-17 17:21:55,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 17:21:55,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 17:21:55,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 17:21:55,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 17:21:55,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,433 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 17:21:55,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 17:21:55,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 17:21:55,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 17:21:55,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (1/1) ... [2024-12-17 17:21:55,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 17:21:55,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:21:55,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-17 17:21:55,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-17 17:21:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-12-17 17:21:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-12-17 17:21:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-12-17 17:21:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 17:21:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 17:21:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 17:21:55,494 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 17:21:55,599 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 17:21:55,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 17:21:55,821 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 17:21:55,821 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 17:21:55,989 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 17:21:55,989 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 17:21:55,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:21:55 BoogieIcfgContainer [2024-12-17 17:21:55,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 17:21:55,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 17:21:55,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 17:21:55,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 17:21:55,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:21:54" (1/3) ... [2024-12-17 17:21:55,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ed7be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:21:55, skipping insertion in model container [2024-12-17 17:21:55,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:55" (2/3) ... [2024-12-17 17:21:55,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ed7be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:21:55, skipping insertion in model container [2024-12-17 17:21:55,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:21:55" (3/3) ... [2024-12-17 17:21:55,996 INFO L128 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-12-17 17:21:56,006 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 17:21:56,007 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG twostage_3.i that has 3 procedures, 46 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-12-17 17:21:56,007 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 17:21:56,041 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-17 17:21:56,079 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:21:56,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 17:21:56,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:21:56,081 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-17 17:21:56,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-17 17:21:56,156 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 17:21:56,167 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 17:21:56,172 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f97e37e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:21:56,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-17 17:21:56,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 17:21:56,318 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:21:56,318 INFO L139 ounterexampleChecker]: Examining path program with hash 756900944, occurence #1 [2024-12-17 17:21:56,318 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:21:56,318 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:21:56,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:21:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1847419089, now seen corresponding path program 1 times [2024-12-17 17:21:56,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:21:56,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918620647] [2024-12-17 17:21:56,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:21:56,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:21:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 17:21:56,440 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-17 17:21:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 17:21:56,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-17 17:21:56,505 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-17 17:21:56,506 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-17 17:21:56,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-12-17 17:21:56,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 17:21:56,514 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-17 17:21:56,515 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/2) [2024-12-17 17:21:56,516 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-17 17:21:56,516 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-17 17:21:56,541 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-12-17 17:21:56,546 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:21:56,555 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 17:21:56,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == funcBThread2of2ForFork0 ======== [2024-12-17 17:21:56,557 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f97e37e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:21:56,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-17 17:21:57,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:21:57,004 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:21:57,005 INFO L139 ounterexampleChecker]: Examining path program with hash 1080280790, occurence #1 [2024-12-17 17:21:57,005 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:21:57,005 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:21:57,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:21:57,005 INFO L85 PathProgramCache]: Analyzing trace with hash 164239484, now seen corresponding path program 1 times [2024-12-17 17:21:57,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:21:57,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083798100] [2024-12-17 17:21:57,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:21:57,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:21:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:21:57,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:21:57,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 17:21:57,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083798100] [2024-12-17 17:21:57,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083798100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:21:57,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:21:57,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 17:21:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175544868] [2024-12-17 17:21:57,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:21:57,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 17:21:57,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 17:21:57,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 17:21:57,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 17:21:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:21:57,150 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:21:57,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:21:57,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:21:58,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:21:58,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 17:21:58,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:21:58,004 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:21:58,004 INFO L139 ounterexampleChecker]: Examining path program with hash -84637832, occurence #1 [2024-12-17 17:21:58,004 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:21:58,004 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:21:58,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:21:58,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1735076406, now seen corresponding path program 1 times [2024-12-17 17:21:58,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:21:58,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318100872] [2024-12-17 17:21:58,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:21:58,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:21:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:21:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:21:58,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 17:21:58,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318100872] [2024-12-17 17:21:58,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318100872] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:21:58,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:21:58,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:21:58,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64938129] [2024-12-17 17:21:58,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:21:58,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:21:58,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 17:21:58,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:21:58,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:21:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:21:58,289 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:21:58,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:21:58,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:21:58,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:21:59,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:21:59,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:21:59,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-17 17:21:59,217 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:21:59,217 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:21:59,218 INFO L139 ounterexampleChecker]: Examining path program with hash 2096853612, occurence #1 [2024-12-17 17:21:59,218 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:21:59,218 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:21:59,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:21:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash -843293123, now seen corresponding path program 1 times [2024-12-17 17:21:59,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:21:59,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885103484] [2024-12-17 17:21:59,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:21:59,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:21:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:21:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:21:59,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 17:21:59,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885103484] [2024-12-17 17:21:59,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885103484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:21:59,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:21:59,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:21:59,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755130311] [2024-12-17 17:21:59,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:21:59,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:21:59,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 17:21:59,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:21:59,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:21:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:21:59,430 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:21:59,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:21:59,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:21:59,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:21:59,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:00,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-17 17:22:00,360 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:00,361 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:00,361 INFO L139 ounterexampleChecker]: Examining path program with hash 2039973917, occurence #1 [2024-12-17 17:22:00,361 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:00,361 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:00,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1384462749, now seen corresponding path program 2 times [2024-12-17 17:22:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:22:00,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966674274] [2024-12-17 17:22:00,361 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 17:22:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:22:00,382 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 17:22:00,382 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 17:22:00,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:00,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 17:22:00,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966674274] [2024-12-17 17:22:00,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966674274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:00,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:00,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:22:00,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548063856] [2024-12-17 17:22:00,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:00,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:22:00,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 17:22:00,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:22:00,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:22:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:00,571 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:00,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:00,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:00,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:00,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:00,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:01,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:01,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:01,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:01,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:01,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-17 17:22:01,932 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:01,932 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:01,932 INFO L139 ounterexampleChecker]: Examining path program with hash -844496575, occurence #1 [2024-12-17 17:22:01,932 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:01,932 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:01,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:01,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1699343691, now seen corresponding path program 3 times [2024-12-17 17:22:01,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:22:01,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003642341] [2024-12-17 17:22:01,933 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 17:22:01,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:22:01,959 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-17 17:22:01,959 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 17:22:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:02,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 17:22:02,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003642341] [2024-12-17 17:22:02,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003642341] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:02,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:02,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:22:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973601507] [2024-12-17 17:22:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:02,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:22:02,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 17:22:02,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:22:02,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:22:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:02,108 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:02,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:06,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-17 17:22:06,836 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:06,836 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:06,836 INFO L139 ounterexampleChecker]: Examining path program with hash 303706753, occurence #1 [2024-12-17 17:22:06,836 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:06,836 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:06,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:06,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1357286204, now seen corresponding path program 2 times [2024-12-17 17:22:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:22:06,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501603313] [2024-12-17 17:22:06,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 17:22:06,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:22:06,851 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 17:22:06,851 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 17:22:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:06,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 17:22:06,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501603313] [2024-12-17 17:22:06,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501603313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:06,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:06,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 17:22:06,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328788080] [2024-12-17 17:22:06,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:06,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 17:22:06,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 17:22:06,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 17:22:06,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-17 17:22:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:06,933 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:06,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:06,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:06,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:06,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:06,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:06,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:06,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:08,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-17 17:22:08,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:08,752 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:08,752 INFO L139 ounterexampleChecker]: Examining path program with hash -1036603832, occurence #1 [2024-12-17 17:22:08,752 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:08,752 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:08,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash -280526180, now seen corresponding path program 1 times [2024-12-17 17:22:08,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:22:08,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098263351] [2024-12-17 17:22:08,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:22:08,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:22:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:22:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:08,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 17:22:08,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098263351] [2024-12-17 17:22:08,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098263351] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:08,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:08,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-17 17:22:08,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96083182] [2024-12-17 17:22:08,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:08,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:22:08,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 17:22:08,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:22:08,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:22:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:08,960 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:08,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 17:22:11,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-17 17:22:11,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:11,048 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:11,048 INFO L139 ounterexampleChecker]: Examining path program with hash -1634738539, occurence #1 [2024-12-17 17:22:11,048 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:11,048 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:11,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:11,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1504229498, now seen corresponding path program 2 times [2024-12-17 17:22:11,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 17:22:11,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478662669] [2024-12-17 17:22:11,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 17:22:11,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 17:22:11,075 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 17:22:11,075 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-17 17:22:11,075 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-17 17:22:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 17:22:11,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-17 17:22:11,099 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-17 17:22:11,099 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location funcBErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-17 17:22:11,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-17 17:22:11,100 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1] [2024-12-17 17:22:11,100 INFO L319 ceAbstractionStarter]: Result for error location funcBThread2of2ForFork0 was UNSAFE (1/3) [2024-12-17 17:22:11,173 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-12-17 17:22:11,176 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-17 17:22:11,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-12-17 17:22:11,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:22:11 BasicIcfg [2024-12-17 17:22:11,185 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-17 17:22:11,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-17 17:22:11,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-17 17:22:11,186 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-17 17:22:11,187 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:21:55" (3/4) ... [2024-12-17 17:22:11,189 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-17 17:22:11,189 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-17 17:22:11,190 INFO L158 Benchmark]: Toolchain (without parser) took 16240.86ms. Allocated memory was 167.8MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 121.6MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 707.2MB. Max. memory is 16.1GB. [2024-12-17 17:22:11,190 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 17:22:11,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.05ms. Allocated memory is still 167.8MB. Free memory was 120.9MB in the beginning and 81.7MB in the end (delta: 39.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-17 17:22:11,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.49ms. Allocated memory is still 167.8MB. Free memory was 81.7MB in the beginning and 79.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 17:22:11,191 INFO L158 Benchmark]: Boogie Preprocessor took 27.51ms. Allocated memory is still 167.8MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 17:22:11,191 INFO L158 Benchmark]: RCFGBuilder took 543.47ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 118.4MB in the end (delta: -40.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-12-17 17:22:11,191 INFO L158 Benchmark]: TraceAbstraction took 15194.71ms. Allocated memory was 167.8MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 117.5MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 699.4MB. Max. memory is 16.1GB. [2024-12-17 17:22:11,192 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 2.5GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 166.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 17:22:11,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.05ms. Allocated memory is still 167.8MB. Free memory was 120.9MB in the beginning and 81.7MB in the end (delta: 39.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.49ms. Allocated memory is still 167.8MB. Free memory was 81.7MB in the beginning and 79.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.51ms. Allocated memory is still 167.8MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 543.47ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 118.4MB in the end (delta: -40.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15194.71ms. Allocated memory was 167.8MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 117.5MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 699.4MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 2.5GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 166.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 265, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 245, independent conditional: 0, independent unconditional: 245, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 263, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 252, Positive conditional cache size: 0, Positive unconditional cache size: 252, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 2, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 14, Number of trivial persistent sets: 14, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 255, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 265, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 245, independent conditional: 0, independent unconditional: 245, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 263, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 252, Positive conditional cache size: 0, Positive unconditional cache size: 252, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 2 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1142992, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 81932, dependent conditional: 81745, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1103878, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 42818, dependent conditional: 42631, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1103878, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42818, dependent conditional: 3888, dependent unconditional: 38930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1103878, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42818, dependent conditional: 3888, dependent unconditional: 38930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5483, independent: 5235, independent conditional: 44, independent unconditional: 5191, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5483, independent: 5048, independent conditional: 0, independent unconditional: 5048, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 435, independent: 187, independent conditional: 44, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 435, independent: 187, independent conditional: 44, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2765, independent: 1114, independent conditional: 265, independent unconditional: 850, dependent: 1651, dependent conditional: 279, dependent unconditional: 1372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1103878, independent: 1055825, independent conditional: 776, independent unconditional: 1055049, dependent: 42570, dependent conditional: 3829, dependent unconditional: 38741, unknown: 5483, unknown conditional: 103, unknown unconditional: 5380] , Statistics on independence cache: Total cache size (in pairs): 5738, Positive cache size: 5487, Positive conditional cache size: 44, Positive unconditional cache size: 5443, Negative cache size: 251, Negative conditional cache size: 59, Negative unconditional cache size: 192, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1093415, Maximal queried relation: 6, Independence queries for same thread: 73380, Persistent sets #1 benchmarks: Persistent set computation time: 3.7s, Number of persistent set computation: 47392, Number of trivial persistent sets: 38283, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5755, independent: 5568, independent conditional: 0, independent unconditional: 5568, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1142992, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 81932, dependent conditional: 81745, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1103878, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 42818, dependent conditional: 42631, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1103878, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42818, dependent conditional: 3888, dependent unconditional: 38930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1103878, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42818, dependent conditional: 3888, dependent unconditional: 38930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5483, independent: 5235, independent conditional: 44, independent unconditional: 5191, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5483, independent: 5048, independent conditional: 0, independent unconditional: 5048, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 435, independent: 187, independent conditional: 44, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 435, independent: 187, independent conditional: 44, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2765, independent: 1114, independent conditional: 265, independent unconditional: 850, dependent: 1651, dependent conditional: 279, dependent unconditional: 1372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1103878, independent: 1055825, independent conditional: 776, independent unconditional: 1055049, dependent: 42570, dependent conditional: 3829, dependent unconditional: 38741, unknown: 5483, unknown conditional: 103, unknown unconditional: 5380] , Statistics on independence cache: Total cache size (in pairs): 5738, Positive cache size: 5487, Positive conditional cache size: 44, Positive unconditional cache size: 5443, Negative cache size: 251, Negative conditional cache size: 59, Negative unconditional cache size: 192, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1093415, Maximal queried relation: 6, Independence queries for same thread: 73380 - UnprovableResult [Line: 1272]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1284. Possible FailurePath: [L1236] 0 static int iTThreads = 2; [L1237] 0 static int iRThreads = 1; [L1238] 0 static int data1Value = 0; [L1239] 0 static int data2Value = 0; [L1240] 0 pthread_mutex_t *data1Lock; [L1241] 0 pthread_mutex_t *data2Lock; [L1278] 0 int i,err; [L1279] COND TRUE 0 argc != 1 [L1280] COND FALSE 0 !(argc != 3) [L1288] COND FALSE 0 !(iTThreads > 100000 || iRThreads > 100000) [L1291] 0 data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1292] 0 data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1293] EXPR 0 err = pthread_mutex_init(data1Lock, ((void *)0)) [L1293] COND FALSE 0 !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1297] EXPR 0 err = pthread_mutex_init(data2Lock, ((void *)0)) [L1297] COND FALSE 0 !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1301] 0 pthread_t tPool[iTThreads]; [L1302] 0 pthread_t rPool[iRThreads]; [L1303] 0 i = 0 VAL [\old(argc)=3, \old(argv)={53:54}, argc=3, data1Lock={-2:0}, data1Value=0, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, rPool={6:0}, tPool={5:0}] [L1303] COND TRUE 0 i < iTThreads [L1304] EXPR, FCALL, FORK 0 pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \old(argv)={53:54}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=0, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, rPool={6:0}, tPool={5:0}] [L1245] 1 int t1 = -1; VAL [\old(param)={0:0}, data1Lock={-2:0}, data1Value=0, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=-1] [L1247] 1 data1Value = 1 VAL [\old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=-1] [L1250] 1 t1 = data1Value VAL [\old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=1] [L1304] EXPR 0 err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) [L1304] COND FALSE 0 !(0 != (err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)))) [L1303] 0 i++ VAL [\old(argc)=3, \old(argv)={53:54}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=1, iRThreads=2, iTThreads=1, param={0:0}, rPool={6:0}, t1=1, tPool={5:0}] [L1303] COND FALSE 0 !(i < iTThreads) [L1309] 0 i = 0 VAL [\old(argc)=3, \old(argv)={53:54}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, param={0:0}, rPool={6:0}, t1=1, tPool={5:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] EXPR, FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={53:54}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, param={0:0}, rPool={6:0}, t1=1, tPool={5:0}] [L1258] 2 int t1 = -1; [L1259] 2 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=-1, t1=1, t2=-1] [L1261] COND FALSE 2 !(data1Value == 0) [L1265] 2 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=-1] [L1268] 2 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1270] COND TRUE 2 t2 != (t1 + 1) [L1272] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1310] EXPR 0 err = pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) [L1310] COND FALSE 0 !(0 != (err = pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)))) [L1309] 0 i++ VAL [\old(argc)=3, \old(argv)={53:54}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=1, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, rPool={6:0}, t1=1, t1=1, t2=0, tPool={5:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={53:54}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=1, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, rPool={6:0}, t1=1, t1=1, t2=0, tPool={5:0}] [L1258] 3 int t1 = -1; [L1259] 3 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1261] COND FALSE 3 !(data1Value == 0) [L1265] 3 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1268] 3 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1253] 1 data2Value = t1 + 1 VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=2, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1255] 1 return ((void *)0); [L1270] COND TRUE 3 t2 != (t1 + 1) [L1272] 3 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, \result={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=2, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: funcBThread2of2ForFork0 with 1 thread instances CFG has 7 procedures, 112 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 14.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 13.1s, 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: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 1625 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-17 17:22:11,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/twostage_3.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 17:22:13,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 17:22:13,147 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-12-17 17:22:13,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 17:22:13,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 17:22:13,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 17:22:13,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 17:22:13,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 17:22:13,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 17:22:13,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 17:22:13,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 17:22:13,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 17:22:13,171 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 17:22:13,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 17:22:13,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 17:22:13,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 17:22:13,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 17:22:13,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 17:22:13,172 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 17:22:13,173 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 17:22:13,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 17:22:13,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 17:22:13,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 17:22:13,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 17:22:13,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 17:22:13,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-17 17:22:13,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 17:22:13,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 17:22:13,175 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 17:22:13,175 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 17:22:13,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 17:22:13,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 17:22:13,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 17:22:13,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 17:22:13,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 17:22:13,398 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 17:22:13,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/twostage_3.i [2024-12-17 17:22:14,484 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/a258ec1d9/cfffde987b3e44b7a7810b097f604812/FLAGd9226f1e4 [2024-12-17 17:22:14,716 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 17:22:14,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/twostage_3.i [2024-12-17 17:22:14,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/a258ec1d9/cfffde987b3e44b7a7810b097f604812/FLAGd9226f1e4 [2024-12-17 17:22:14,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/a258ec1d9/cfffde987b3e44b7a7810b097f604812 [2024-12-17 17:22:14,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 17:22:14,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 17:22:14,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 17:22:14,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 17:22:14,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 17:22:14,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:14" (1/1) ... [2024-12-17 17:22:14,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37819954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:14, skipping insertion in model container [2024-12-17 17:22:14,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:14" (1/1) ... [2024-12-17 17:22:14,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 17:22:15,067 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-12-17 17:22:15,083 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:22:15,084 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:22:15,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 17:22:15,092 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 17:22:15,130 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-12-17 17:22:15,140 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:22:15,143 WARN L1731 CHandler]: Possible shadowing of function lock [2024-12-17 17:22:15,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 17:22:15,211 INFO L204 MainTranslator]: Completed translation [2024-12-17 17:22:15,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15 WrapperNode [2024-12-17 17:22:15,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 17:22:15,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 17:22:15,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 17:22:15,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 17:22:15,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,259 INFO L138 Inliner]: procedures = 376, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 127 [2024-12-17 17:22:15,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 17:22:15,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 17:22:15,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 17:22:15,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 17:22:15,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,280 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 17:22:15,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 17:22:15,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 17:22:15,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 17:22:15,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (1/1) ... [2024-12-17 17:22:15,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 17:22:15,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:15,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-17 17:22:15,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-12-17 17:22:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-12-17 17:22:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 17:22:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 17:22:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 17:22:15,343 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 17:22:15,466 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 17:22:15,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 17:22:15,719 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 17:22:15,719 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 17:22:15,914 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 17:22:15,914 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 17:22:15,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:15 BoogieIcfgContainer [2024-12-17 17:22:15,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 17:22:15,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 17:22:15,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 17:22:15,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 17:22:15,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:22:14" (1/3) ... [2024-12-17 17:22:15,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1787843d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:15, skipping insertion in model container [2024-12-17 17:22:15,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:15" (2/3) ... [2024-12-17 17:22:15,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1787843d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:15, skipping insertion in model container [2024-12-17 17:22:15,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:15" (3/3) ... [2024-12-17 17:22:15,922 INFO L128 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-12-17 17:22:15,930 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 17:22:15,945 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG twostage_3.i that has 3 procedures, 46 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-12-17 17:22:15,946 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 17:22:15,993 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-17 17:22:16,027 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:22:16,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 17:22:16,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:16,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-17 17:22:16,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-17 17:22:16,086 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 17:22:16,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 17:22:16,101 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50e7b193, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:22:16,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-17 17:22:16,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 17:22:16,262 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:16,262 INFO L139 ounterexampleChecker]: Examining path program with hash -1130194664, occurence #1 [2024-12-17 17:22:16,262 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:16,262 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:16,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1174253329, now seen corresponding path program 1 times [2024-12-17 17:22:16,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:16,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700342281] [2024-12-17 17:22:16,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:22:16,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:16,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:16,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:16,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-17 17:22:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 17:22:16,383 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-17 17:22:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 17:22:16,462 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-17 17:22:16,464 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-17 17:22:16,465 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-17 17:22:16,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-12-17 17:22:16,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-17 17:22:16,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:16,671 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-17 17:22:16,672 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/2) [2024-12-17 17:22:16,672 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-17 17:22:16,672 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-17 17:22:16,709 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-12-17 17:22:16,714 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:22:16,724 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 17:22:16,725 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == funcBThread2of2ForFork0 ======== [2024-12-17 17:22:16,725 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50e7b193, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 17:22:16,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-17 17:22:17,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:17,220 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:17,220 INFO L139 ounterexampleChecker]: Examining path program with hash 315489548, occurence #1 [2024-12-17 17:22:17,221 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:17,221 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:17,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:17,221 INFO L85 PathProgramCache]: Analyzing trace with hash 386463036, now seen corresponding path program 1 times [2024-12-17 17:22:17,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:17,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955826611] [2024-12-17 17:22:17,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:22:17,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:17,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:17,225 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:17,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-17 17:22:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:22:17,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-17 17:22:17,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 17:22:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:17,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 17:22:17,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 17:22:17,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955826611] [2024-12-17 17:22:17,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955826611] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:17,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:17,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 17:22:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847914801] [2024-12-17 17:22:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:17,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 17:22:17,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 17:22:17,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 17:22:17,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 17:22:17,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:17,373 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:17,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:17,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:18,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-17 17:22:18,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:18,666 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:18,666 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:18,666 INFO L139 ounterexampleChecker]: Examining path program with hash -710152562, occurence #1 [2024-12-17 17:22:18,666 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:18,666 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:18,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:18,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1127717834, now seen corresponding path program 1 times [2024-12-17 17:22:18,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:18,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073514166] [2024-12-17 17:22:18,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:22:18,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:18,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:18,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:18,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-17 17:22:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:22:18,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 17:22:18,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 17:22:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:18,891 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 17:22:18,891 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 17:22:18,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073514166] [2024-12-17 17:22:18,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073514166] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:18,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:18,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:22:18,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216578042] [2024-12-17 17:22:18,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:18,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:22:18,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 17:22:18,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:22:18,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:22:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:18,895 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:18,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:18,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:18,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:20,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:20,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-17 17:22:20,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:20,232 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:20,232 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:20,232 INFO L139 ounterexampleChecker]: Examining path program with hash 355857257, occurence #1 [2024-12-17 17:22:20,232 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:20,232 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:20,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1502915011, now seen corresponding path program 1 times [2024-12-17 17:22:20,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:20,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788057762] [2024-12-17 17:22:20,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:22:20,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:20,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:20,235 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:20,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-17 17:22:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:22:20,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 17:22:20,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 17:22:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:20,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 17:22:20,466 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 17:22:20,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788057762] [2024-12-17 17:22:20,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788057762] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:20,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:20,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:22:20,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882411185] [2024-12-17 17:22:20,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:20,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:22:20,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 17:22:20,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:22:20,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:22:20,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:20,467 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:20,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:20,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:20,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:21,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:21,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:21,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-17 17:22:21,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:21,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:21,722 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:21,722 INFO L139 ounterexampleChecker]: Examining path program with hash 1269745798, occurence #1 [2024-12-17 17:22:21,722 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:21,722 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:21,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash 724840861, now seen corresponding path program 2 times [2024-12-17 17:22:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:21,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325234547] [2024-12-17 17:22:21,723 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 17:22:21,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:21,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:21,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:21,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-17 17:22:21,827 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 17:22:21,827 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 17:22:21,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 17:22:21,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 17:22:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:21,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 17:22:21,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 17:22:21,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325234547] [2024-12-17 17:22:21,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325234547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:21,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:21,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:22:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918290186] [2024-12-17 17:22:21,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:21,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:22:21,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 17:22:21,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:22:21,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:22:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:21,948 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:21,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:21,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:21,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:21,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:21,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:23,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-17 17:22:23,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:23,563 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:23,563 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:23,563 INFO L139 ounterexampleChecker]: Examining path program with hash 588295762, occurence #1 [2024-12-17 17:22:23,563 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:23,563 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:23,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:23,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1936001717, now seen corresponding path program 3 times [2024-12-17 17:22:23,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:23,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080690811] [2024-12-17 17:22:23,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 17:22:23,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:23,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:23,567 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:23,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-17 17:22:23,658 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-17 17:22:23,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 17:22:23,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 17:22:23,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 17:22:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:23,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 17:22:23,748 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 17:22:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080690811] [2024-12-17 17:22:23,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080690811] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:23,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:23,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 17:22:23,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238677734] [2024-12-17 17:22:23,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:23,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 17:22:23,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 17:22:23,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 17:22:23,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-17 17:22:23,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:23,749 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:23,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:23,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:23,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:23,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:23,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:23,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:28,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-17 17:22:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:28,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:28,702 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:28,702 INFO L139 ounterexampleChecker]: Examining path program with hash 2051216067, occurence #1 [2024-12-17 17:22:28,702 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:28,702 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:28,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1505508036, now seen corresponding path program 2 times [2024-12-17 17:22:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529861068] [2024-12-17 17:22:28,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 17:22:28,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:28,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:28,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:28,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-17 17:22:28,783 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 17:22:28,783 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 17:22:28,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-17 17:22:28,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 17:22:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:28,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 17:22:28,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 17:22:28,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529861068] [2024-12-17 17:22:28,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529861068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:28,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:28,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 17:22:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810689129] [2024-12-17 17:22:28,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:28,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 17:22:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 17:22:28,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 17:22:28,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-17 17:22:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:28,851 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:28,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:28,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:28,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:28,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:28,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:28,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:28,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:30,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:30,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-17 17:22:30,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:30,855 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:30,855 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:30,855 INFO L139 ounterexampleChecker]: Examining path program with hash 152859609, occurence #1 [2024-12-17 17:22:30,855 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:30,855 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:30,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1204158374, now seen corresponding path program 1 times [2024-12-17 17:22:30,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:30,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860770037] [2024-12-17 17:22:30,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 17:22:30,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:30,858 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:30,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-17 17:22:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 17:22:30,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 17:22:30,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 17:22:30,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-12-17 17:22:30,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-12-17 17:22:31,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-12-17 17:22:31,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-12-17 17:22:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 17:22:31,023 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 17:22:31,023 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 17:22:31,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860770037] [2024-12-17 17:22:31,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860770037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 17:22:31,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 17:22:31,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 17:22:31,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84840738] [2024-12-17 17:22:31,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 17:22:31,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 17:22:31,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 17:22:31,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 17:22:31,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-17 17:22:31,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:31,024 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 17:22:31,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 17:22:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 17:22:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 17:22:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 17:22:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-17 17:22:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 17:22:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 17:22:33,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-17 17:22:33,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:33,413 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 17:22:33,413 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 17:22:33,414 INFO L139 ounterexampleChecker]: Examining path program with hash 43410930, occurence #1 [2024-12-17 17:22:33,414 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 17:22:33,414 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 17:22:33,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 17:22:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1867105604, now seen corresponding path program 2 times [2024-12-17 17:22:33,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 17:22:33,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880251141] [2024-12-17 17:22:33,414 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 17:22:33,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:33,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 17:22:33,416 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 17:22:33,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-17 17:22:33,563 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 17:22:33,563 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-17 17:22:33,563 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-17 17:22:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 17:22:33,682 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-17 17:22:33,682 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-17 17:22:33,683 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location funcBErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-17 17:22:33,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-17 17:22:33,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 17:22:33,888 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1] [2024-12-17 17:22:33,888 INFO L319 ceAbstractionStarter]: Result for error location funcBThread2of2ForFork0 was UNSAFE (1/3) [2024-12-17 17:22:33,954 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-12-17 17:22:33,954 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-17 17:22:33,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-12-17 17:22:33,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:22:33 BasicIcfg [2024-12-17 17:22:33,965 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-17 17:22:33,965 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-17 17:22:33,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-17 17:22:33,965 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-17 17:22:33,966 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:15" (3/4) ... [2024-12-17 17:22:33,967 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-17 17:22:33,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-17 17:22:33,968 INFO L158 Benchmark]: Toolchain (without parser) took 19218.57ms. Allocated memory was 117.4MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 91.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 829.4MB. Max. memory is 16.1GB. [2024-12-17 17:22:33,969 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory is still 46.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 17:22:33,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.72ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 50.8MB in the end (delta: 40.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-17 17:22:33,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.79ms. Allocated memory is still 117.4MB. Free memory was 50.8MB in the beginning and 48.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 17:22:33,969 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 117.4MB. Free memory was 48.3MB in the beginning and 46.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 17:22:33,969 INFO L158 Benchmark]: RCFGBuilder took 622.35ms. Allocated memory is still 117.4MB. Free memory was 46.3MB in the beginning and 43.1MB in the end (delta: 3.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-12-17 17:22:33,969 INFO L158 Benchmark]: TraceAbstraction took 18047.52ms. Allocated memory was 117.4MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 42.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 781.5MB. Max. memory is 16.1GB. [2024-12-17 17:22:33,970 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 2.4GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 205.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 17:22:33,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory is still 46.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.72ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 50.8MB in the end (delta: 40.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.79ms. Allocated memory is still 117.4MB. Free memory was 50.8MB in the beginning and 48.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 117.4MB. Free memory was 48.3MB in the beginning and 46.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 622.35ms. Allocated memory is still 117.4MB. Free memory was 46.3MB in the beginning and 43.1MB in the end (delta: 3.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 18047.52ms. Allocated memory was 117.4MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 42.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 781.5MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 2.4GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 205.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 265, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 245, independent conditional: 0, independent unconditional: 245, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 263, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 252, Positive conditional cache size: 0, Positive unconditional cache size: 252, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 2, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 14, Number of trivial persistent sets: 14, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 255, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 265, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 8, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 263, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 245, independent conditional: 0, independent unconditional: 245, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 263, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 252, Positive conditional cache size: 0, Positive unconditional cache size: 252, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 2 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1142992, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 81932, dependent conditional: 81745, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1103936, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 42876, dependent conditional: 42689, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1103936, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42876, dependent conditional: 3888, dependent unconditional: 38988, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1103936, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42876, dependent conditional: 3888, dependent unconditional: 38988, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5481, independent: 5233, independent conditional: 42, independent unconditional: 5191, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5481, independent: 5048, independent conditional: 0, independent unconditional: 5048, dependent: 433, dependent conditional: 0, dependent unconditional: 433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 433, independent: 185, independent conditional: 42, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 433, independent: 185, independent conditional: 42, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3546, independent: 1448, independent conditional: 316, independent unconditional: 1133, dependent: 2098, dependent conditional: 349, dependent unconditional: 1749, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1103936, independent: 1055827, independent conditional: 778, independent unconditional: 1055049, dependent: 42628, dependent conditional: 3829, dependent unconditional: 38799, unknown: 5481, unknown conditional: 101, unknown unconditional: 5380] , Statistics on independence cache: Total cache size (in pairs): 5736, Positive cache size: 5485, Positive conditional cache size: 42, Positive unconditional cache size: 5443, Negative cache size: 251, Negative conditional cache size: 59, Negative unconditional cache size: 192, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1093473, Maximal queried relation: 6, Independence queries for same thread: 73380, Persistent sets #1 benchmarks: Persistent set computation time: 4.4s, Number of persistent set computation: 47392, Number of trivial persistent sets: 38283, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5755, independent: 5568, independent conditional: 0, independent unconditional: 5568, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1142992, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 81932, dependent conditional: 81745, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1069612, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 8552, dependent conditional: 8365, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1103936, independent: 1061060, independent conditional: 1055492, independent unconditional: 5568, dependent: 42876, dependent conditional: 42689, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1103936, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42876, dependent conditional: 3888, dependent unconditional: 38988, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1103936, independent: 1061060, independent conditional: 820, independent unconditional: 1060240, dependent: 42876, dependent conditional: 3888, dependent unconditional: 38988, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5481, independent: 5233, independent conditional: 42, independent unconditional: 5191, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5481, independent: 5048, independent conditional: 0, independent unconditional: 5048, dependent: 433, dependent conditional: 0, dependent unconditional: 433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 433, independent: 185, independent conditional: 42, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 433, independent: 185, independent conditional: 42, independent unconditional: 143, dependent: 248, dependent conditional: 59, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3546, independent: 1448, independent conditional: 316, independent unconditional: 1133, dependent: 2098, dependent conditional: 349, dependent unconditional: 1749, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1103936, independent: 1055827, independent conditional: 778, independent unconditional: 1055049, dependent: 42628, dependent conditional: 3829, dependent unconditional: 38799, unknown: 5481, unknown conditional: 101, unknown unconditional: 5380] , Statistics on independence cache: Total cache size (in pairs): 5736, Positive cache size: 5485, Positive conditional cache size: 42, Positive unconditional cache size: 5443, Negative cache size: 251, Negative conditional cache size: 59, Negative unconditional cache size: 192, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1093473, Maximal queried relation: 6, Independence queries for same thread: 73380 - UnprovableResult [Line: 1272]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1284. Possible FailurePath: [L1236] 0 static int iTThreads = 2; [L1237] 0 static int iRThreads = 1; [L1238] 0 static int data1Value = 0; [L1239] 0 static int data2Value = 0; [L1240] 0 pthread_mutex_t *data1Lock; [L1241] 0 pthread_mutex_t *data2Lock; [L1278] 0 int i,err; [L1279] COND TRUE 0 argc != 1 [L1280] COND FALSE 0 !(argc != 3) [L1288] COND FALSE 0 !(iTThreads > 100000 || iRThreads > 100000) [L1291] 0 data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1292] 0 data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1293] EXPR 0 err = pthread_mutex_init(data1Lock, ((void *)0)) [L1293] COND FALSE 0 !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1297] EXPR 0 err = pthread_mutex_init(data2Lock, ((void *)0)) [L1297] COND FALSE 0 !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1301] 0 pthread_t tPool[iTThreads]; [L1302] 0 pthread_t rPool[iRThreads]; [L1303] 0 i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, argc=3, data1Lock={4:0}, data1Value=0, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, rPool={135:0}, tPool={7:0}] [L1303] COND TRUE 0 i < iTThreads [L1304] EXPR, FCALL, FORK 0 pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=0, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, rPool={135:0}, tPool={7:0}] [L1245] 1 int t1 = -1; VAL [\old(param)={0:0}, data1Lock={4:0}, data1Value=0, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=-1] [L1247] 1 data1Value = 1 VAL [\old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=-1] [L1250] 1 t1 = data1Value VAL [\old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=1] [L1304] EXPR 0 err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) [L1304] COND FALSE 0 !(0 != (err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)))) [L1303] 0 i++ VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=1, iRThreads=2, iTThreads=1, param={0:0}, rPool={135:0}, t1=1, tPool={7:0}] [L1303] COND FALSE 0 !(i < iTThreads) [L1309] 0 i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, param={0:0}, rPool={135:0}, t1=1, tPool={7:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] EXPR, FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, param={0:0}, rPool={135:0}, t1=1, tPool={7:0}] [L1258] 2 int t1 = -1; [L1259] 2 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=-1, t1=1, t2=-1] [L1261] COND FALSE 2 !(data1Value == 0) [L1265] 2 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=-1] [L1268] 2 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1270] COND TRUE 2 t2 != (t1 + 1) [L1272] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1310] EXPR 0 err = pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) [L1310] COND FALSE 0 !(0 != (err = pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)))) [L1309] 0 i++ VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=1, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, rPool={135:0}, t1=1, t1=1, t2=0, tPool={7:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=1, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, rPool={135:0}, t1=1, t1=1, t2=0, tPool={7:0}] [L1258] 3 int t1 = -1; [L1259] 3 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=-1, t1=1, t2=-1] [L1261] COND FALSE 3 !(data1Value == 0) [L1265] 3 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=-1] [L1268] 3 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1253] 1 data2Value = t1 + 1 VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=2, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1255] 1 return ((void *)0); [L1270] COND TRUE 3 t2 != (t1 + 1) [L1272] 3 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, \result={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=2, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: funcBThread2of2ForFork0 with 1 thread instances CFG has 7 procedures, 112 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 13.9s, 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: 46, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 1531 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1407 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-17 17:22:33,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample