./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c --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/weaver/chl-chromosome-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c --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 20:43:12,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 20:43:12,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 20:43:12,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 20:43:12,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 20:43:12,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 20:43:12,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 20:43:12,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 20:43:12,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 20:43:12,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 20:43:12,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 20:43:12,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 20:43:12,248 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 20:43:12,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 20:43:12,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 20:43:12,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 20:43:12,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 20:43:12,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 20:43:12,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 20:43:12,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 20:43:12,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 20:43:12,250 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 20:43:12,250 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 -> 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 20:43:12,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 20:43:12,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 20:43:12,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 20:43:12,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 20:43:12,481 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 20:43:12,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2024-12-17 20:43:13,538 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/10140d3c5/b185fe8ae0b94accb42621b75ae47cb6/FLAGae2e6dd39 [2024-12-17 20:43:13,736 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 20:43:13,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2024-12-17 20:43:13,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/10140d3c5/b185fe8ae0b94accb42621b75ae47cb6/FLAGae2e6dd39 [2024-12-17 20:43:14,102 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/10140d3c5/b185fe8ae0b94accb42621b75ae47cb6 [2024-12-17 20:43:14,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 20:43:14,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 20:43:14,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 20:43:14,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 20:43:14,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 20:43:14,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f798a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14, skipping insertion in model container [2024-12-17 20:43:14,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 20:43:14,240 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c[3136,3149] [2024-12-17 20:43:14,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 20:43:14,258 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 20:43:14,280 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/weaver/chl-chromosome-subst.wvr.c[3136,3149] [2024-12-17 20:43:14,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 20:43:14,296 INFO L204 MainTranslator]: Completed translation [2024-12-17 20:43:14,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14 WrapperNode [2024-12-17 20:43:14,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 20:43:14,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 20:43:14,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 20:43:14,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 20:43:14,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,332 INFO L138 Inliner]: procedures = 25, calls = 32, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 253 [2024-12-17 20:43:14,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 20:43:14,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 20:43:14,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 20:43:14,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 20:43:14,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,349 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 20:43:14,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 20:43:14,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 20:43:14,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 20:43:14,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (1/1) ... [2024-12-17 20:43:14,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 20:43:14,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:43:14,379 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 20:43:14,380 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 20:43:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 20:43:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 20:43:14,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 20:43:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 20:43:14,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 20:43:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 20:43:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 20:43:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 20:43:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 20:43:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 20:43:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 20:43:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 20:43:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 20:43:14,395 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 20:43:14,468 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 20:43:14,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 20:43:14,734 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 20:43:14,735 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 20:43:14,951 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 20:43:14,951 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 20:43:14,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:43:14 BoogieIcfgContainer [2024-12-17 20:43:14,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 20:43:14,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 20:43:14,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 20:43:14,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 20:43:14,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 08:43:14" (1/3) ... [2024-12-17 20:43:14,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cabecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:43:14, skipping insertion in model container [2024-12-17 20:43:14,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:43:14" (2/3) ... [2024-12-17 20:43:14,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cabecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:43:14, skipping insertion in model container [2024-12-17 20:43:14,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:43:14" (3/3) ... [2024-12-17 20:43:14,960 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2024-12-17 20:43:14,970 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 20:43:14,971 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-subst.wvr.c that has 4 procedures, 26 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-17 20:43:14,972 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 20:43:15,012 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 20:43:15,045 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 20:43:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 20:43:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:43:15,047 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 20:43:15,049 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 20:43:15,099 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 20:43:15,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 20:43:15,113 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;@24980329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 20:43:15,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 20:43:15,405 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:15,405 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:15,405 INFO L139 ounterexampleChecker]: Examining path program with hash -362085673, occurence #1 [2024-12-17 20:43:15,405 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:43:15,405 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:15,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:15,410 INFO L85 PathProgramCache]: Analyzing trace with hash -549698983, now seen corresponding path program 1 times [2024-12-17 20:43:15,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:15,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962524839] [2024-12-17 20:43:15,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:15,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:15,704 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 20:43:15,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:15,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962524839] [2024-12-17 20:43:15,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962524839] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:43:15,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:43:15,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 20:43:15,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443745392] [2024-12-17 20:43:15,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:43:15,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 20:43:15,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:15,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 20:43:15,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 20:43:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:15,720 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:15,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 20:43:15,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:15,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 20:43:15,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:15,784 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:15,784 INFO L139 ounterexampleChecker]: Examining path program with hash -362085673, occurence #2 [2024-12-17 20:43:15,784 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:43:15,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 20:43:15,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:15,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 20:43:15,802 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:15,802 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 20:43:15,802 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:15,802 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 20:43:15,802 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:15,802 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-17 20:43:15,802 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:15,802 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:43:15,803 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:15,803 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:43:15,803 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:15,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1190892541, now seen corresponding path program 1 times [2024-12-17 20:43:15,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:15,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818471457] [2024-12-17 20:43:15,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:15,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 20:43:16,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:16,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818471457] [2024-12-17 20:43:16,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818471457] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:43:16,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:43:16,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 20:43:16,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680725398] [2024-12-17 20:43:16,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:43:16,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 20:43:16,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:16,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 20:43:16,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-17 20:43:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:16,008 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:16,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 20:43:16,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:16,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 20:43:16,072 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:16,072 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:16,072 INFO L139 ounterexampleChecker]: Examining path program with hash 2022513364, occurence #1 [2024-12-17 20:43:16,072 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:43:16,072 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:16,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:16,073 INFO L85 PathProgramCache]: Analyzing trace with hash 179002949, now seen corresponding path program 1 times [2024-12-17 20:43:16,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:16,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765682932] [2024-12-17 20:43:16,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:16,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 20:43:16,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:16,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765682932] [2024-12-17 20:43:16,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765682932] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 20:43:16,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404897806] [2024-12-17 20:43:16,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:16,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:43:16,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:43:16,209 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 20:43:16,211 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 20:43:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:16,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-17 20:43:16,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:43:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 20:43:16,319 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:43:16,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 20:43:16,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404897806] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 20:43:16,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 20:43:16,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-12-17 20:43:16,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428549337] [2024-12-17 20:43:16,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 20:43:16,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-17 20:43:16,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:16,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-17 20:43:16,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-12-17 20:43:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:16,337 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:16,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 20:43:16,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:16,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:16,413 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 20:43:16,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:43:16,607 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:16,607 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:16,608 INFO L139 ounterexampleChecker]: Examining path program with hash 2022513364, occurence #2 [2024-12-17 20:43:16,608 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:43:16,608 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 20:43:16,608 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:16,608 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 20:43:16,608 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,608 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 20:43:16,608 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,608 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:43:16,608 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,608 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-12-17 20:43:16,608 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,608 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-12-17 20:43:16,608 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:16,608 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:43:16,608 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:16,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:16,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1173279185, now seen corresponding path program 2 times [2024-12-17 20:43:16,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:16,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174609417] [2024-12-17 20:43:16,609 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 20:43:16,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:16,644 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 20:43:16,644 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:43:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-17 20:43:16,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:16,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174609417] [2024-12-17 20:43:16,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174609417] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:43:16,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:43:16,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 20:43:16,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434034737] [2024-12-17 20:43:16,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:43:16,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 20:43:16,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:16,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 20:43:16,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 20:43:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:16,828 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:16,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 20:43:16,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:16,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:16,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:16,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-17 20:43:16,927 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:16,928 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:16,928 INFO L139 ounterexampleChecker]: Examining path program with hash 2022513364, occurence #3 [2024-12-17 20:43:16,928 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:43:16,928 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 20:43:16,928 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:16,928 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 20:43:16,928 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,928 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 20:43:16,928 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,928 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:43:16,929 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-17 20:43:16,929 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:16,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-17 20:43:16,929 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:16,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-17 20:43:16,929 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:16,929 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:43:16,929 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:16,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:16,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1526141247, now seen corresponding path program 3 times [2024-12-17 20:43:16,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:16,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000049919] [2024-12-17 20:43:16,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 20:43:16,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:16,964 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-17 20:43:16,965 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:43:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-17 20:43:17,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:17,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000049919] [2024-12-17 20:43:17,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000049919] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:43:17,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:43:17,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-17 20:43:17,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543842860] [2024-12-17 20:43:17,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:43:17,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 20:43:17,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:17,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 20:43:17,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-17 20:43:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:17,278 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:17,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 20:43:17,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:17,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:17,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:43:17,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-17 20:43:17,416 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:17,416 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:17,416 INFO L139 ounterexampleChecker]: Examining path program with hash 163101105, occurence #1 [2024-12-17 20:43:17,417 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:43:17,417 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:17,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1244866635, now seen corresponding path program 1 times [2024-12-17 20:43:17,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:17,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367915907] [2024-12-17 20:43:17,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:17,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-17 20:43:17,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:17,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367915907] [2024-12-17 20:43:17,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367915907] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 20:43:17,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517586304] [2024-12-17 20:43:17,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:17,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:43:17,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:43:17,575 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 20:43:17,576 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 20:43:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:17,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 20:43:17,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:43:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-17 20:43:17,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:43:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-17 20:43:17,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517586304] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 20:43:17,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 20:43:17,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2024-12-17 20:43:17,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711457994] [2024-12-17 20:43:17,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 20:43:17,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-17 20:43:17,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:17,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-17 20:43:17,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2024-12-17 20:43:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:17,810 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:17,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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 20:43:17,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:17,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:17,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:43:17,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:43:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 20:43:17,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-17 20:43:18,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:43:18,121 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:18,121 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:18,121 INFO L139 ounterexampleChecker]: Examining path program with hash 163101105, occurence #2 [2024-12-17 20:43:18,121 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:43:18,121 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 20:43:18,121 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:18,121 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 20:43:18,121 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:18,121 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:43:18,121 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:18,121 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-17 20:43:18,121 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:18,121 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-12-17 20:43:18,121 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:43:18,121 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-12-17 20:43:18,121 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:43:18,121 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:43:18,121 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:18,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1683908149, now seen corresponding path program 2 times [2024-12-17 20:43:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:18,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138054276] [2024-12-17 20:43:18,122 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 20:43:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:18,193 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 20:43:18,193 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:43:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-17 20:43:18,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:18,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138054276] [2024-12-17 20:43:18,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138054276] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 20:43:18,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155985591] [2024-12-17 20:43:18,403 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 20:43:18,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:43:18,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:43:18,404 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 20:43:18,406 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 20:43:18,513 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 20:43:18,513 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:43:18,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 20:43:18,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:43:18,651 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-17 20:43:18,652 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 20:43:18,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155985591] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:43:18,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-17 20:43:18,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-12-17 20:43:18,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345505952] [2024-12-17 20:43:18,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:43:18,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 20:43:18,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:18,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 20:43:18,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-17 20:43:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:18,653 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:18,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 20:43:18,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:18,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:18,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:18,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:18,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:43:18,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 20:43:18,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:43:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 20:43:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:18,802 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 20:43:18,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:43:18,997 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:18,997 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:18,997 INFO L139 ounterexampleChecker]: Examining path program with hash 1120525391, occurence #1 [2024-12-17 20:43:18,997 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:43:18,997 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:18,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:18,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1559489062, now seen corresponding path program 1 times [2024-12-17 20:43:18,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:18,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821908080] [2024-12-17 20:43:18,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:18,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-17 20:43:19,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:19,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821908080] [2024-12-17 20:43:19,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821908080] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:43:19,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:43:19,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 20:43:19,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993228156] [2024-12-17 20:43:19,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:43:19,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 20:43:19,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:43:19,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 20:43:19,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-17 20:43:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:19,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:43:19,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:19,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:43:19,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-17 20:43:19,379 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:43:19,379 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:43:19,379 INFO L139 ounterexampleChecker]: Examining path program with hash 236555515, occurence #1 [2024-12-17 20:43:19,379 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:43:19,379 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:43:19,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:43:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1531333390, now seen corresponding path program 1 times [2024-12-17 20:43:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:43:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162127847] [2024-12-17 20:43:19,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:19,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:43:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:19,603 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-17 20:43:19,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:43:19,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162127847] [2024-12-17 20:43:19,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162127847] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 20:43:19,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870664454] [2024-12-17 20:43:19,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:43:19,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:43:19,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:43:19,605 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 20:43:19,607 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 20:43:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:43:19,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-17 20:43:19,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:43:19,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 20:43:19,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 104 [2024-12-17 20:43:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-17 20:43:20,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:43:24,217 INFO L349 Elim1Store]: treesize reduction 11, result has 98.9 percent of original size [2024-12-17 20:43:24,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 262 treesize of output 1063 [2024-12-17 20:45:10,308 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-17 20:45:10,308 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 101 [2024-12-17 20:45:10,308 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-17 20:45:10,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-17 20:45:10,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:10,514 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 20:45:10,515 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2024-12-17 20:45:10,521 INFO L158 Benchmark]: Toolchain (without parser) took 116415.84ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 112.7MB in the beginning and 841.3MB in the end (delta: -728.6MB). Peak memory consumption was 892.3MB. Max. memory is 16.1GB. [2024-12-17 20:45:10,521 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 20:45:10,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.73ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 99.9MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 20:45:10,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.92ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.7MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 20:45:10,522 INFO L158 Benchmark]: Boogie Preprocessor took 24.17ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 95.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 20:45:10,522 INFO L158 Benchmark]: RCFGBuilder took 593.67ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 77.6MB in the end (delta: 18.1MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-12-17 20:45:10,522 INFO L158 Benchmark]: TraceAbstraction took 115566.92ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 76.8MB in the beginning and 841.3MB in the end (delta: -764.5MB). Peak memory consumption was 861.1MB. Max. memory is 16.1GB. [2024-12-17 20:45:10,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.73ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 99.9MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.92ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.7MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.17ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 95.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 593.67ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 77.6MB in the end (delta: 18.1MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * TraceAbstraction took 115566.92ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 76.8MB in the beginning and 841.3MB in the end (delta: -764.5MB). Peak memory consumption was 861.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/weaver/chl-chromosome-subst.wvr.c -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 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c --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 20:45:12,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 20:45:12,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-12-17 20:45:12,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 20:45:12,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 20:45:12,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 20:45:12,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 20:45:12,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 20:45:12,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 20:45:12,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 20:45:12,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 20:45:12,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 20:45:12,220 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 20:45:12,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 20:45:12,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 20:45:12,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 20:45:12,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 20:45:12,222 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 20:45:12,222 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 -> 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 20:45:12,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 20:45:12,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 20:45:12,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 20:45:12,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 20:45:12,452 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 20:45:12,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2024-12-17 20:45:13,566 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bb7a69394/f651678a0ac64b60a46c4fc11c03dc07/FLAG21990b2d3 [2024-12-17 20:45:13,730 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 20:45:13,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2024-12-17 20:45:13,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bb7a69394/f651678a0ac64b60a46c4fc11c03dc07/FLAG21990b2d3 [2024-12-17 20:45:13,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bb7a69394/f651678a0ac64b60a46c4fc11c03dc07 [2024-12-17 20:45:13,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 20:45:13,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 20:45:13,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 20:45:13,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 20:45:13,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 20:45:13,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c844f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13, skipping insertion in model container [2024-12-17 20:45:13,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,773 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 20:45:13,887 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c[3136,3149] [2024-12-17 20:45:13,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 20:45:13,900 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 20:45:13,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c[3136,3149] [2024-12-17 20:45:13,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 20:45:13,933 INFO L204 MainTranslator]: Completed translation [2024-12-17 20:45:13,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13 WrapperNode [2024-12-17 20:45:13,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 20:45:13,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 20:45:13,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 20:45:13,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 20:45:13,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,972 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 247 [2024-12-17 20:45:13,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 20:45:13,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 20:45:13,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 20:45:13,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 20:45:13,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:13,997 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:14,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:14,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:14,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:14,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:14,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 20:45:14,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 20:45:14,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 20:45:14,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 20:45:14,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (1/1) ... [2024-12-17 20:45:14,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 20:45:14,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:14,036 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 20:45:14,041 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 20:45:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 20:45:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-17 20:45:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-17 20:45:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 20:45:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 20:45:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 20:45:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 20:45:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 20:45:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 20:45:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 20:45:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 20:45:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 20:45:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-17 20:45:14,058 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 20:45:14,147 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 20:45:14,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 20:45:14,508 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 20:45:14,508 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 20:45:14,799 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 20:45:14,800 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 20:45:14,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:45:14 BoogieIcfgContainer [2024-12-17 20:45:14,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 20:45:14,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 20:45:14,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 20:45:14,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 20:45:14,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 08:45:13" (1/3) ... [2024-12-17 20:45:14,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca04900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:45:14, skipping insertion in model container [2024-12-17 20:45:14,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:45:13" (2/3) ... [2024-12-17 20:45:14,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca04900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:45:14, skipping insertion in model container [2024-12-17 20:45:14,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:45:14" (3/3) ... [2024-12-17 20:45:14,807 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2024-12-17 20:45:14,816 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 20:45:14,818 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-subst.wvr.c that has 4 procedures, 26 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-17 20:45:14,818 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 20:45:14,859 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 20:45:14,891 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 20:45:14,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 20:45:14,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:14,893 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 20:45:14,894 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 20:45:14,959 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 20:45:14,969 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 20:45:14,977 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;@3c9d8e2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 20:45:14,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 20:45:15,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:15,246 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:15,246 INFO L139 ounterexampleChecker]: Examining path program with hash 913693434, occurence #1 [2024-12-17 20:45:15,246 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:45:15,246 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:15,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:15,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1400474709, now seen corresponding path program 1 times [2024-12-17 20:45:15,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:15,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341102502] [2024-12-17 20:45:15,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:45:15,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:15,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:15,261 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 20:45:15,262 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 20:45:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:45:15,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-17 20:45:15,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:15,499 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 20:45:15,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 20:45:15,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:15,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341102502] [2024-12-17 20:45:15,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341102502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:45:15,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:45:15,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 20:45:15,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813132863] [2024-12-17 20:45:15,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:45:15,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 20:45:15,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:15,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 20:45:15,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 20:45:15,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:15,519 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:15,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 20:45:15,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:15,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-17 20:45:15,832 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 20:45:15,832 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:15,832 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:15,832 INFO L139 ounterexampleChecker]: Examining path program with hash 816278798, occurence #1 [2024-12-17 20:45:15,833 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:45:15,833 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:15,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:15,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1092990937, now seen corresponding path program 1 times [2024-12-17 20:45:15,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:15,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360141673] [2024-12-17 20:45:15,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:45:15,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:15,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:15,835 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 20:45:15,837 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 20:45:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:45:15,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-17 20:45:15,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:15,946 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 20:45:15,946 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 20:45:15,946 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:15,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360141673] [2024-12-17 20:45:15,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360141673] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:45:15,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:45:15,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 20:45:15,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780873202] [2024-12-17 20:45:15,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:45:15,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 20:45:15,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:15,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 20:45:15,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 20:45:15,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:15,949 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:15,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 20:45:15,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:15,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:16,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:16,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:16,032 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 20:45:16,230 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 20:45:16,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:16,231 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:16,231 INFO L139 ounterexampleChecker]: Examining path program with hash 816278798, occurence #2 [2024-12-17 20:45:16,231 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:45:16,231 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 20:45:16,231 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:16,231 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 20:45:16,249 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 20:45:16,250 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 20:45:16,250 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-12-17 20:45:16,250 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-17 20:45:16,250 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:16,250 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:45:16,250 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:16,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1586637263, now seen corresponding path program 1 times [2024-12-17 20:45:16,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:16,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086030091] [2024-12-17 20:45:16,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:45:16,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:16,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:16,253 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 20:45:16,254 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 20:45:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:45:16,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 20:45:16,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 20:45:16,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:45:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 20:45:16,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:16,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086030091] [2024-12-17 20:45:16,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086030091] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 20:45:16,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 20:45:16,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-17 20:45:16,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111656249] [2024-12-17 20:45:16,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-17 20:45:16,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 20:45:16,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:16,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 20:45:16,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-17 20:45:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:16,374 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:16,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 20:45:16,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:16,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:16,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:16,531 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 20:45:16,725 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 20:45:16,727 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:16,727 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:16,727 INFO L139 ounterexampleChecker]: Examining path program with hash 816278798, occurence #3 [2024-12-17 20:45:16,727 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:45:16,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 20:45:16,727 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:16,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 20:45:16,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 20:45:16,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:45:16,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-12-17 20:45:16,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:16,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-12-17 20:45:16,727 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:16,727 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:45:16,727 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:16,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash 678263463, now seen corresponding path program 2 times [2024-12-17 20:45:16,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:16,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308478064] [2024-12-17 20:45:16,728 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 20:45:16,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:16,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:16,731 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 20:45:16,733 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 20:45:16,814 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 20:45:16,815 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:45:16,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 20:45:16,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-17 20:45:16,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 20:45:16,905 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:16,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308478064] [2024-12-17 20:45:16,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308478064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:45:16,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:45:16,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 20:45:16,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255563602] [2024-12-17 20:45:16,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:45:16,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 20:45:16,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:16,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 20:45:16,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 20:45:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:16,907 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:16,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 20:45:16,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:16,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:16,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:16,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:17,041 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 20:45:17,235 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 20:45:17,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:17,235 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:17,235 INFO L139 ounterexampleChecker]: Examining path program with hash 816278798, occurence #4 [2024-12-17 20:45:17,235 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:45:17,235 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 20:45:17,236 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:17,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 20:45:17,236 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:17,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 20:45:17,236 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:17,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:45:17,236 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:17,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-17 20:45:17,236 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:17,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-17 20:45:17,236 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:17,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-17 20:45:17,236 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:17,236 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:45:17,236 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:17,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash 37105981, now seen corresponding path program 3 times [2024-12-17 20:45:17,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:17,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89694997] [2024-12-17 20:45:17,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 20:45:17,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:17,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:17,239 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 20:45:17,240 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 20:45:17,330 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-17 20:45:17,330 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:45:17,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-17 20:45:17,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-17 20:45:17,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 20:45:17,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:17,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89694997] [2024-12-17 20:45:17,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89694997] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:45:17,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:45:17,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-17 20:45:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270231447] [2024-12-17 20:45:17,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:45:17,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 20:45:17,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:17,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 20:45:17,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-17 20:45:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:17,430 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:17,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 20:45:17,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:17,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:17,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:17,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:17,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:17,585 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 20:45:17,782 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 20:45:17,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:17,783 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:17,783 INFO L139 ounterexampleChecker]: Examining path program with hash 1305687096, occurence #1 [2024-12-17 20:45:17,783 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:45:17,783 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:17,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:17,783 INFO L85 PathProgramCache]: Analyzing trace with hash -28842835, now seen corresponding path program 1 times [2024-12-17 20:45:17,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:17,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010251565] [2024-12-17 20:45:17,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:45:17,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:17,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:17,785 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 20:45:17,786 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 20:45:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:45:17,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-17 20:45:17,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-17 20:45:17,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 20:45:17,992 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:17,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010251565] [2024-12-17 20:45:17,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010251565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:45:17,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:45:17,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 20:45:17,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035975380] [2024-12-17 20:45:17,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:45:17,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 20:45:17,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:17,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 20:45:17,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 20:45:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:17,994 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:17,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 20:45:17,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:17,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:17,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:17,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:17,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:17,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:18,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-17 20:45:18,370 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 20:45:18,370 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:18,370 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:18,370 INFO L139 ounterexampleChecker]: Examining path program with hash -1623451337, occurence #1 [2024-12-17 20:45:18,370 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:45:18,370 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:18,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:18,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1080412920, now seen corresponding path program 1 times [2024-12-17 20:45:18,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:18,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314655498] [2024-12-17 20:45:18,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:45:18,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:18,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:18,373 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 20:45:18,373 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 20:45:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:45:18,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-17 20:45:18,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-17 20:45:18,567 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 20:45:18,567 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:18,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314655498] [2024-12-17 20:45:18,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314655498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:45:18,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:45:18,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 20:45:18,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820804789] [2024-12-17 20:45:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:45:18,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 20:45:18,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:18,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 20:45:18,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 20:45:18,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:18,568 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:18,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 20:45:18,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:18,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:18,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:18,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:18,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:18,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:18,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:18,749 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 20:45:18,943 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 20:45:18,943 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:18,943 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:18,943 INFO L139 ounterexampleChecker]: Examining path program with hash 1740309607, occurence #1 [2024-12-17 20:45:18,943 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:45:18,943 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:18,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:18,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1298750560, now seen corresponding path program 1 times [2024-12-17 20:45:18,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:18,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174162597] [2024-12-17 20:45:18,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:45:18,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:18,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:18,948 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 20:45:18,950 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 20:45:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:45:19,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 20:45:19,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-17 20:45:19,140 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:45:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-17 20:45:19,214 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:19,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174162597] [2024-12-17 20:45:19,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174162597] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 20:45:19,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 20:45:19,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-12-17 20:45:19,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884492154] [2024-12-17 20:45:19,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-17 20:45:19,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-17 20:45:19,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:19,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-17 20:45:19,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-17 20:45:19,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:19,215 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:19,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 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 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-17 20:45:19,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-17 20:45:19,679 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 20:45:19,679 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:19,679 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:19,679 INFO L139 ounterexampleChecker]: Examining path program with hash 1740309607, occurence #2 [2024-12-17 20:45:19,679 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:45:19,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 20:45:19,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:19,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 20:45:19,679 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:19,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 20:45:19,679 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:19,680 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:45:19,680 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:19,680 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-17 20:45:19,680 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:19,680 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-12-17 20:45:19,680 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:19,680 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-12-17 20:45:19,680 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:19,680 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:45:19,680 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:19,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:19,680 INFO L85 PathProgramCache]: Analyzing trace with hash -944091612, now seen corresponding path program 2 times [2024-12-17 20:45:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:19,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929099865] [2024-12-17 20:45:19,680 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 20:45:19,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:19,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:19,682 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 20:45:19,683 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 20:45:19,809 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 20:45:19,809 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:45:19,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-17 20:45:19,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-17 20:45:19,851 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:45:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-17 20:45:19,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 20:45:19,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929099865] [2024-12-17 20:45:19,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929099865] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 20:45:19,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 20:45:19,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-17 20:45:19,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964019584] [2024-12-17 20:45:19,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-17 20:45:19,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-17 20:45:19,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 20:45:19,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-17 20:45:19,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-17 20:45:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:19,932 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:45:19,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 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 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-17 20:45:19,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:45:20,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-17 20:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 20:45:20,133 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 20:45:20,325 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 20:45:20,326 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 20:45:20,326 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:45:20,326 INFO L139 ounterexampleChecker]: Examining path program with hash 1740309607, occurence #3 [2024-12-17 20:45:20,326 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:45:20,326 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 20:45:20,326 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:20,326 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 20:45:20,326 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:20,326 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 20:45:20,326 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:20,326 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-17 20:45:20,326 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:20,326 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-12-17 20:45:20,326 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:20,326 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-12-17 20:45:20,326 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:45:20,326 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-12-17 20:45:20,326 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:45:20,326 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:45:20,326 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:45:20,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:45:20,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1555930450, now seen corresponding path program 3 times [2024-12-17 20:45:20,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 20:45:20,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120519857] [2024-12-17 20:45:20,327 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 20:45:20,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:45:20,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:45:20,328 INFO L229 MonitoredProcess]: Starting monitored process 12 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 20:45:20,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-17 20:45:20,583 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 20:45:20,583 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:45:20,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-17 20:45:20,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:45:21,105 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 20:45:21,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 133 treesize of output 117 [2024-12-17 20:45:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-17 20:45:21,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:46:28,825 WARN L286 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 2129 DAG size of output: 1405 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-12-17 20:46:28,825 INFO L349 Elim1Store]: treesize reduction 3611, result has 54.8 percent of original size [2024-12-17 20:46:28,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 36 select indices, 36 select index equivalence classes, 0 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 630 case distinctions, treesize of input 1676 treesize of output 4877 Killed by 15