./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c --full-output --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1c4755c5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-mts.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 cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 15:20:51,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 15:20:51,478 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 15:20:51,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 15:20:51,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 15:20:51,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 15:20:51,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 15:20:51,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 15:20:51,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 15:20:51,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 15:20:51,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 15:20:51,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 15:20:51,502 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 15:20:51,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 15:20:51,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 15:20:51,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 15:20:51,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 15:20:51,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 15:20:51,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 15:20:51,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 15:20:51,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 15:20:51,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 15:20:51,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 15:20:51,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 15:20:51,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 15:20:51,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 15:20:51,505 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 15:20:51,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 15:20:51,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 15:20:51,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 15:20:51,505 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 15:20:51,505 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 15:20:51,505 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 -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2024-12-17 15:20:51,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 15:20:51,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 15:20:51,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 15:20:51,723 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 15:20:51,724 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 15:20:51,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2024-12-17 15:20:52,816 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f2bf3e7ef/b828ab77e2e94e5d8ee712452e29c5ed/FLAG3cbf8814c [2024-12-17 15:20:53,013 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 15:20:53,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2024-12-17 15:20:53,027 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f2bf3e7ef/b828ab77e2e94e5d8ee712452e29c5ed/FLAG3cbf8814c [2024-12-17 15:20:53,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f2bf3e7ef/b828ab77e2e94e5d8ee712452e29c5ed [2024-12-17 15:20:53,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 15:20:53,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 15:20:53,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 15:20:53,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 15:20:53,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 15:20:53,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4befaf6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53, skipping insertion in model container [2024-12-17 15:20:53,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 15:20:53,169 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/popl20-more-mts.wvr.c[2572,2585] [2024-12-17 15:20:53,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 15:20:53,186 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 15:20:53,205 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/popl20-more-mts.wvr.c[2572,2585] [2024-12-17 15:20:53,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 15:20:53,223 INFO L204 MainTranslator]: Completed translation [2024-12-17 15:20:53,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53 WrapperNode [2024-12-17 15:20:53,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 15:20:53,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 15:20:53,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 15:20:53,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 15:20:53,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,254 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 13, calls inlined = 19, statements flattened = 204 [2024-12-17 15:20:53,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 15:20:53,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 15:20:53,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 15:20:53,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 15:20:53,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,274 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 15:20:53,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 15:20:53,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 15:20:53,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 15:20:53,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (1/1) ... [2024-12-17 15:20:53,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 15:20:53,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:20:53,300 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 15:20:53,302 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 15:20:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 15:20:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 15:20:53,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 15:20:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 15:20:53,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 15:20:53,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 15:20:53,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 15:20:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 15:20:53,317 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 15:20:53,381 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 15:20:53,382 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 15:20:53,638 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 15:20:53,638 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 15:20:53,859 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 15:20:53,860 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 15:20:53,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:20:53 BoogieIcfgContainer [2024-12-17 15:20:53,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 15:20:53,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 15:20:53,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 15:20:53,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 15:20:53,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:20:53" (1/3) ... [2024-12-17 15:20:53,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696bdd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:20:53, skipping insertion in model container [2024-12-17 15:20:53,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:20:53" (2/3) ... [2024-12-17 15:20:53,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696bdd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:20:53, skipping insertion in model container [2024-12-17 15:20:53,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:20:53" (3/3) ... [2024-12-17 15:20:53,868 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2024-12-17 15:20:53,877 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 15:20:53,878 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-mts.wvr.c that has 4 procedures, 26 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-12-17 15:20:53,879 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 15:20:53,940 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 15:20:53,975 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 15:20:53,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 15:20:53,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:20:53,977 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 15:20:53,979 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 15:20:54,043 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 15:20:54,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 15:20:54,059 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;@75bc6f74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 15:20:54,061 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 15:20:54,228 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 15:20:54,228 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:20:54,228 INFO L139 ounterexampleChecker]: Examining path program with hash 2032849662, occurence #1 [2024-12-17 15:20:54,229 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:20:54,229 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:20:54,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:20:54,231 INFO L85 PathProgramCache]: Analyzing trace with hash -955279096, now seen corresponding path program 1 times [2024-12-17 15:20:54,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:20:54,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191099959] [2024-12-17 15:20:54,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:20:54,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:20:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:20:54,751 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 15:20:54,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:20:54,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191099959] [2024-12-17 15:20:54,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191099959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:20:54,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:20:54,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 15:20:54,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016102352] [2024-12-17 15:20:54,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:20:54,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 15:20:54,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:20:54,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 15:20:54,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 15:20:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:20:54,772 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:20:54,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 15:20:54,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:20:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:54,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 15:20:54,817 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 15:20:54,817 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:20:54,817 INFO L139 ounterexampleChecker]: Examining path program with hash -268352300, occurence #1 [2024-12-17 15:20:54,817 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:20:54,817 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:20:54,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:20:54,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1406165919, now seen corresponding path program 1 times [2024-12-17 15:20:54,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:20:54,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439719246] [2024-12-17 15:20:54,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:20:54,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:20:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:20:54,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 15:20:54,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:20:54,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439719246] [2024-12-17 15:20:54,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439719246] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:20:54,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:20:54,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 15:20:54,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314460594] [2024-12-17 15:20:54,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:20:54,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 15:20:54,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:20:54,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 15:20:54,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 15:20:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:20:54,923 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:20:54,923 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 15:20:54,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:54,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:20:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:54,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:54,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 15:20:54,972 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 15:20:54,972 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:20:54,972 INFO L139 ounterexampleChecker]: Examining path program with hash -268352300, occurence #2 [2024-12-17 15:20:54,972 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:20:54,972 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:20:54,973 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:20:54,973 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 15:20:54,983 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:20:54,984 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 15:20:54,984 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:20:54,984 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 15:20:54,984 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:20:54,984 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-17 15:20:54,984 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:20:54,984 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-12-17 15:20:54,984 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:20:54,984 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:20:54,984 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:20:54,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:20:54,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1564691344, now seen corresponding path program 1 times [2024-12-17 15:20:54,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:20:54,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689365294] [2024-12-17 15:20:54,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:20:54,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:20:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:20:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 15:20:55,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:20:55,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689365294] [2024-12-17 15:20:55,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689365294] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:20:55,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338039700] [2024-12-17 15:20:55,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:20:55,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:20:55,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:20:55,074 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 15:20:55,076 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 15:20:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:20:55,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 15:20:55,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:20:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 15:20:55,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:20:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 15:20:55,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338039700] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-17 15:20:55,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-17 15:20:55,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-12-17 15:20:55,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220163272] [2024-12-17 15:20:55,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:20:55,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 15:20:55,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:20:55,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 15:20:55,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-17 15:20:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:20:55,259 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:20:55,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 15:20:55,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:55,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:55,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:20:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:20:55,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:20:55,337 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 15:20:55,530 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 15:20:55,530 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 15:20:55,531 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:20:55,531 INFO L139 ounterexampleChecker]: Examining path program with hash -376346187, occurence #1 [2024-12-17 15:20:55,531 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:20:55,531 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:20:55,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:20:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash 110841719, now seen corresponding path program 1 times [2024-12-17 15:20:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:20:55,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221393290] [2024-12-17 15:20:55,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:20:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:20:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:20:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:20:56,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:20:56,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221393290] [2024-12-17 15:20:56,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221393290] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:20:56,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033408495] [2024-12-17 15:20:56,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:20:56,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:20:56,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:20:56,426 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 15:20:56,427 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 15:20:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:20:56,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-17 15:20:56,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:20:56,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-17 15:20:56,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 38 [2024-12-17 15:20:56,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:20:56,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:20:57,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 219 [2024-12-17 15:20:57,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:20:57,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 359 treesize of output 373 [2024-12-17 15:21:11,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 90 [2024-12-17 15:21:11,196 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-12-17 15:21:11,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 120 treesize of output 1 [2024-12-17 15:21:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:11,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033408495] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 15:21:11,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 15:21:11,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2024-12-17 15:21:11,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753815967] [2024-12-17 15:21:11,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 15:21:11,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-17 15:21:11,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:21:11,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-17 15:21:11,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2024-12-17 15:21:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:11,229 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:21:11,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.9166666666666665) internal successors, (70), 23 states have internal predecessors, (70), 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 15:21:11,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:11,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:11,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:11,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:11,491 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 15:21:11,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:21:11,686 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 15:21:11,686 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:21:11,686 INFO L139 ounterexampleChecker]: Examining path program with hash -376346187, occurence #2 [2024-12-17 15:21:11,686 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:21:11,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:21:11,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:21:11,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-17 15:21:11,686 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:11,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 15:21:11,686 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:11,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 15:21:11,686 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:11,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 15:21:11,686 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:11,686 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:21:11,686 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:21:11,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:21:11,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1048580378, now seen corresponding path program 2 times [2024-12-17 15:21:11,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:21:11,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279325456] [2024-12-17 15:21:11,687 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 15:21:11,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:21:11,710 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 15:21:11,710 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:12,246 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 15:21:12,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:21:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279325456] [2024-12-17 15:21:12,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279325456] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:21:12,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:21:12,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-17 15:21:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503131608] [2024-12-17 15:21:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:21:12,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-17 15:21:12,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:21:12,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-17 15:21:12,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-17 15:21:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:12,247 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:21:12,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 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 15:21:12,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:12,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:12,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:12,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-17 15:21:12,401 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 15:21:12,402 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:21:12,402 INFO L139 ounterexampleChecker]: Examining path program with hash 1617419147, occurence #1 [2024-12-17 15:21:12,402 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:21:12,402 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:21:12,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:21:12,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2100817469, now seen corresponding path program 3 times [2024-12-17 15:21:12,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:21:12,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240830683] [2024-12-17 15:21:12,402 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 15:21:12,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:21:12,419 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 15:21:12,419 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:12,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 15:21:12,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:21:12,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240830683] [2024-12-17 15:21:12,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240830683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:21:12,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:21:12,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-17 15:21:12,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946633169] [2024-12-17 15:21:12,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:21:12,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-17 15:21:12,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:21:12,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-17 15:21:12,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-17 15:21:12,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:12,495 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:21:12,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 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 15:21:12,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:12,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:12,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:12,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:12,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:12,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:12,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-17 15:21:12,589 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 15:21:12,589 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:21:12,589 INFO L139 ounterexampleChecker]: Examining path program with hash -376346187, occurence #3 [2024-12-17 15:21:12,589 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:21:12,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:21:12,589 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:21:12,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-17 15:21:12,589 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:12,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 15:21:12,589 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:12,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 15:21:12,589 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:12,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-17 15:21:12,589 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:12,589 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:21:12,589 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:21:12,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:21:12,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1187295808, now seen corresponding path program 4 times [2024-12-17 15:21:12,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:21:12,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862409714] [2024-12-17 15:21:12,590 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 15:21:12,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:21:12,620 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 15:21:12,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:14,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:21:14,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862409714] [2024-12-17 15:21:14,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862409714] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:21:14,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527573224] [2024-12-17 15:21:14,410 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 15:21:14,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:21:14,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:21:14,412 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 15:21:14,413 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 15:21:14,479 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 15:21:14,479 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:14,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-17 15:21:14,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:21:15,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:21:15,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 101 [2024-12-17 15:21:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:15,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:21:16,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:21:16,043 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 508 treesize of output 226 [2024-12-17 15:21:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:18,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527573224] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 15:21:18,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 15:21:18,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 40 [2024-12-17 15:21:18,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016031747] [2024-12-17 15:21:18,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 15:21:18,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-12-17 15:21:18,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:21:18,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-12-17 15:21:18,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1450, Unknown=0, NotChecked=0, Total=1640 [2024-12-17 15:21:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:18,074 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:21:18,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.073170731707317) internal successors, (85), 40 states have internal predecessors, (85), 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 15:21:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:18,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-17 15:21:18,664 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 15:21:18,665 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 15:21:18,665 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:21:18,665 INFO L139 ounterexampleChecker]: Examining path program with hash -376346187, occurence #4 [2024-12-17 15:21:18,665 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:21:18,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:21:18,665 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:21:18,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 15:21:18,665 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:18,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-17 15:21:18,665 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:18,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-17 15:21:18,665 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:18,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-12-17 15:21:18,665 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:18,665 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:21:18,665 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:21:18,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:21:18,665 INFO L85 PathProgramCache]: Analyzing trace with hash -900374479, now seen corresponding path program 5 times [2024-12-17 15:21:18,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:21:18,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399518870] [2024-12-17 15:21:18,666 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 15:21:18,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:21:18,678 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 15:21:18,678 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:18,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:21:18,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399518870] [2024-12-17 15:21:18,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399518870] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:21:18,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359402513] [2024-12-17 15:21:18,748 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 15:21:18,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:21:18,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:21:18,750 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 15:21:18,751 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 15:21:18,817 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 15:21:18,817 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:18,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-17 15:21:18,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:21:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:18,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:21:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359402513] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 15:21:18,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 15:21:18,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-12-17 15:21:18,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641234203] [2024-12-17 15:21:18,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 15:21:18,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-17 15:21:18,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:21:18,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-17 15:21:18,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-12-17 15:21:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:18,973 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:21:18,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 18 states have internal predecessors, (65), 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 15:21:18,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:18,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:18,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:18,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:18,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:18,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:18,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:18,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 15:21:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:21:19,087 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 15:21:19,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:21:19,285 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 15:21:19,285 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:21:19,285 INFO L139 ounterexampleChecker]: Examining path program with hash -376346187, occurence #5 [2024-12-17 15:21:19,285 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:21:19,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:21:19,285 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:21:19,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 15:21:19,285 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:19,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-17 15:21:19,285 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:19,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-17 15:21:19,285 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:19,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-17 15:21:19,285 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:21:19,285 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:21:19,285 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:21:19,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:21:19,285 INFO L85 PathProgramCache]: Analyzing trace with hash 429557259, now seen corresponding path program 6 times [2024-12-17 15:21:19,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:21:19,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871450911] [2024-12-17 15:21:19,285 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-17 15:21:19,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:21:19,333 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-12-17 15:21:19,333 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:21:21,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:21:21,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871450911] [2024-12-17 15:21:21,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871450911] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:21:21,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853510812] [2024-12-17 15:21:21,663 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-17 15:21:21,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:21:21,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:21:21,664 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 15:21:21,666 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 15:21:21,736 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-12-17 15:21:21,736 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:21:21,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-12-17 15:21:21,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:21:21,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-17 15:21:23,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:21:23,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 3 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 569 treesize of output 785 [2024-12-17 15:21:24,514 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 15:21:25,019 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 15:21:28,114 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2024-12-17 15:21:39,982 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:21:40,216 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:21:41,642 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 15:21:46,505 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:21:47,064 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:21:48,003 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:21:50,086 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:21:52,109 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 15:21:57,582 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:21:59,687 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:01,130 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:04,310 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:05,642 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:06,621 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:07,237 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:07,483 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:07,739 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:08,343 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 15:22:10,510 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:11,521 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:11,766 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:13,553 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:19,443 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:21,450 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:27,909 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:31,934 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:32,609 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:40,391 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:43,536 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:45,712 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:46,508 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:22:46,679 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 15:22:53,020 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:55,329 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:22:57,921 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:04,653 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:04,829 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:05,923 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:23:08,733 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:11,427 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:17,738 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:29,882 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:23:37,877 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:40,893 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:41,600 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:46,207 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:23:50,053 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 15:24:00,336 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:24:01,755 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 15:24:07,387 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 15:24:12,261 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 15:24:12,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-12-17 15:24:12,262 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-17 15:24:12,268 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 15:24:12,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:24:12,468 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 15:24:12,468 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$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$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.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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) 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 15:24:12,473 INFO L158 Benchmark]: Toolchain (without parser) took 199433.46ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 123.6MB in the beginning and 530.2MB in the end (delta: -406.6MB). Peak memory consumption was 755.8MB. Max. memory is 16.1GB. [2024-12-17 15:24:12,473 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 15:24:12,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.85ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 111.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 15:24:12,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.27ms. Allocated memory is still 167.8MB. Free memory was 111.9MB in the beginning and 109.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 15:24:12,474 INFO L158 Benchmark]: Boogie Preprocessor took 22.58ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 107.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 15:24:12,474 INFO L158 Benchmark]: RCFGBuilder took 580.65ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 41.6MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-12-17 15:24:12,474 INFO L158 Benchmark]: TraceAbstraction took 198609.85ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 41.6MB in the beginning and 530.2MB in the end (delta: -488.5MB). Peak memory consumption was 672.0MB. Max. memory is 16.1GB. [2024-12-17 15:24:12,475 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 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.85ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 111.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.27ms. Allocated memory is still 167.8MB. Free memory was 111.9MB in the beginning and 109.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.58ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 107.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 580.65ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 41.6MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * TraceAbstraction took 198609.85ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 41.6MB in the beginning and 530.2MB in the end (delta: -488.5MB). Peak memory consumption was 672.0MB. 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/popl20-more-mts.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 cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 15:24:14,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 15:24:14,134 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-12-17 15:24:14,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 15:24:14,142 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 15:24:14,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 15:24:14,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 15:24:14,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 15:24:14,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 15:24:14,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 15:24:14,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 15:24:14,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 15:24:14,181 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 15:24:14,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 15:24:14,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 15:24:14,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 15:24:14,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 15:24:14,182 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 15:24:14,183 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 15:24:14,183 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 -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2024-12-17 15:24:14,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 15:24:14,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 15:24:14,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 15:24:14,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 15:24:14,396 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 15:24:14,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2024-12-17 15:24:15,465 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/14975fc86/1bf122dc95f44f8faa190f85e6eac17b/FLAG53e6ef1fd [2024-12-17 15:24:15,662 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 15:24:15,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2024-12-17 15:24:15,671 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/14975fc86/1bf122dc95f44f8faa190f85e6eac17b/FLAG53e6ef1fd [2024-12-17 15:24:16,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/14975fc86/1bf122dc95f44f8faa190f85e6eac17b [2024-12-17 15:24:16,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 15:24:16,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 15:24:16,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 15:24:16,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 15:24:16,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 15:24:16,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae6edf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16, skipping insertion in model container [2024-12-17 15:24:16,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 15:24:16,151 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/popl20-more-mts.wvr.c[2572,2585] [2024-12-17 15:24:16,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 15:24:16,168 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 15:24:16,186 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/popl20-more-mts.wvr.c[2572,2585] [2024-12-17 15:24:16,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 15:24:16,199 INFO L204 MainTranslator]: Completed translation [2024-12-17 15:24:16,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16 WrapperNode [2024-12-17 15:24:16,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 15:24:16,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 15:24:16,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 15:24:16,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 15:24:16,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,231 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 13, calls inlined = 19, statements flattened = 197 [2024-12-17 15:24:16,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 15:24:16,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 15:24:16,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 15:24:16,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 15:24:16,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,254 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 15:24:16,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 15:24:16,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 15:24:16,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 15:24:16,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (1/1) ... [2024-12-17 15:24:16,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 15:24:16,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:24:16,296 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 15:24:16,298 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 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 15:24:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 15:24:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 15:24:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 15:24:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 15:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-17 15:24:16,317 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 15:24:16,392 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 15:24:16,393 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 15:24:16,683 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 15:24:16,683 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 15:24:16,911 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 15:24:16,911 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 15:24:16,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:24:16 BoogieIcfgContainer [2024-12-17 15:24:16,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 15:24:16,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 15:24:16,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 15:24:16,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 15:24:16,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:24:16" (1/3) ... [2024-12-17 15:24:16,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3684facd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:24:16, skipping insertion in model container [2024-12-17 15:24:16,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:16" (2/3) ... [2024-12-17 15:24:16,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3684facd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:24:16, skipping insertion in model container [2024-12-17 15:24:16,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:24:16" (3/3) ... [2024-12-17 15:24:16,920 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2024-12-17 15:24:16,929 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 15:24:16,930 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-mts.wvr.c that has 4 procedures, 26 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-12-17 15:24:16,930 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 15:24:16,974 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 15:24:17,007 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 15:24:17,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 15:24:17,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:24:17,010 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 15:24:17,012 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 15:24:17,064 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 15:24:17,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 15:24:17,082 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;@c0a3309, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 15:24:17,082 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 15:24:17,270 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 15:24:17,270 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:24:17,270 INFO L139 ounterexampleChecker]: Examining path program with hash 399688351, occurence #1 [2024-12-17 15:24:17,270 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:24:17,270 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:24:17,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:24:17,274 INFO L85 PathProgramCache]: Analyzing trace with hash -198873986, now seen corresponding path program 1 times [2024-12-17 15:24:17,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 15:24:17,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080738088] [2024-12-17 15:24:17,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:24:17,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:24:17,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:24:17,283 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 15:24:17,285 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 15:24:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:24:17,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-17 15:24:17,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:24:17,587 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 15:24:17,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 15:24:17,588 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 15:24:17,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080738088] [2024-12-17 15:24:17,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080738088] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:24:17,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:24:17,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 15:24:17,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748930868] [2024-12-17 15:24:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:24:17,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 15:24:17,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 15:24:17,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 15:24:17,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 15:24:17,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:24:17,605 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:24:17,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 15:24:17,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:24:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:24:17,679 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 15:24:17,873 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 15:24:17,877 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 15:24:17,877 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:24:17,877 INFO L139 ounterexampleChecker]: Examining path program with hash -1901513607, occurence #1 [2024-12-17 15:24:17,877 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:24:17,877 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:24:17,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:24:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1260017373, now seen corresponding path program 1 times [2024-12-17 15:24:17,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 15:24:17,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658511344] [2024-12-17 15:24:17,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:24:17,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:24:17,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:24:17,881 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 15:24:17,882 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 15:24:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:24:17,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 15:24:17,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:24:18,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 15:24:18,044 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 15:24:18,044 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 15:24:18,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658511344] [2024-12-17 15:24:18,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658511344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:24:18,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:24:18,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 15:24:18,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540913438] [2024-12-17 15:24:18,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:24:18,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 15:24:18,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 15:24:18,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 15:24:18,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-17 15:24:18,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:24:18,046 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:24:18,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 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 15:24:18,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:24:18,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:24:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:24:18,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:24:18,164 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 15:24:18,361 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 15:24:18,362 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 15:24:18,362 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:24:18,362 INFO L139 ounterexampleChecker]: Examining path program with hash -1296017533, occurence #1 [2024-12-17 15:24:18,362 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:24:18,362 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:24:18,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:24:18,363 INFO L85 PathProgramCache]: Analyzing trace with hash -744116804, now seen corresponding path program 1 times [2024-12-17 15:24:18,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 15:24:18,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988824564] [2024-12-17 15:24:18,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:24:18,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:24:18,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:24:18,366 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 15:24:18,366 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 15:24:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:24:18,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 15:24:18,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:24:18,471 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 15:24:18,471 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 15:24:18,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 15:24:18,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988824564] [2024-12-17 15:24:18,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988824564] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:24:18,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:24:18,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 15:24:18,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43480275] [2024-12-17 15:24:18,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:24:18,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 15:24:18,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 15:24:18,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 15:24:18,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 15:24:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:24:18,476 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:24:18,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 15:24:18,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:24:18,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:24:18,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:24:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:24:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:24:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 15:24:18,564 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 15:24:18,756 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 15:24:18,756 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 15:24:18,757 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:24:18,757 INFO L139 ounterexampleChecker]: Examining path program with hash -1296017533, occurence #2 [2024-12-17 15:24:18,757 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:24:18,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:24:18,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:24:18,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 15:24:18,768 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:24:18,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 15:24:18,769 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:24:18,769 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 15:24:18,769 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:24:18,769 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-17 15:24:18,769 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:24:18,769 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:24:18,769 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:24:18,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:24:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2096239675, now seen corresponding path program 1 times [2024-12-17 15:24:18,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 15:24:18,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213824110] [2024-12-17 15:24:18,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:24:18,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:24:18,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:24:18,771 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 15:24:18,773 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 15:24:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:24:18,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-17 15:24:18,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:24:18,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-17 15:24:19,472 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-17 15:24:19,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:24:19,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 39 [2024-12-17 15:24:19,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:24:19,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:24:30,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 477 treesize of output 429 [2024-12-17 15:24:30,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:24:30,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 940 treesize of output 950 Killed by 15