./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/unroll-5.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/unroll-5.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 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 --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 16:11:54,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 16:11:54,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 16:11:54,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 16:11:54,358 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 16:11:54,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 16:11:54,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 16:11:54,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 16:11:54,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 16:11:54,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 16:11:54,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 16:11:54,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 16:11:54,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 16:11:54,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 16:11:54,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 16:11:54,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 16:11:54,374 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 16:11:54,374 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 16:11:54,374 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 -> 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2024-12-17 16:11:54,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 16:11:54,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 16:11:54,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 16:11:54,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 16:11:54,600 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 16:11:54,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-12-17 16:11:55,739 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8470cbf91/f628da0893a446ba86759ab164bb70c0/FLAGad4567604 [2024-12-17 16:11:55,990 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 16:11:55,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-12-17 16:11:55,995 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8470cbf91/f628da0893a446ba86759ab164bb70c0/FLAGad4567604 [2024-12-17 16:11:56,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8470cbf91/f628da0893a446ba86759ab164bb70c0 [2024-12-17 16:11:56,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 16:11:56,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 16:11:56,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 16:11:56,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 16:11:56,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 16:11:56,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612ba753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56, skipping insertion in model container [2024-12-17 16:11:56,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 16:11:56,452 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/unroll-5.wvr.c[2670,2683] [2024-12-17 16:11:56,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 16:11:56,468 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 16:11:56,485 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/unroll-5.wvr.c[2670,2683] [2024-12-17 16:11:56,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 16:11:56,495 INFO L204 MainTranslator]: Completed translation [2024-12-17 16:11:56,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56 WrapperNode [2024-12-17 16:11:56,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 16:11:56,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 16:11:56,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 16:11:56,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 16:11:56,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,524 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 148 [2024-12-17 16:11:56,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 16:11:56,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 16:11:56,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 16:11:56,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 16:11:56,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,548 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 16:11:56,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 16:11:56,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 16:11:56,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 16:11:56,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (1/1) ... [2024-12-17 16:11:56,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 16:11:56,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:11:56,584 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 16:11:56,588 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 16:11:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 16:11:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 16:11:56,602 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 16:11:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 16:11:56,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 16:11:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 16:11:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 16:11:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 16:11:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 16:11:56,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 16:11:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 16:11:56,604 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 16:11:56,659 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 16:11:56,660 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 16:11:56,885 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 16:11:56,885 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 16:11:57,102 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 16:11:57,102 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 16:11:57,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:11:57 BoogieIcfgContainer [2024-12-17 16:11:57,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 16:11:57,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 16:11:57,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 16:11:57,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 16:11:57,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:11:56" (1/3) ... [2024-12-17 16:11:57,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c176ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:11:57, skipping insertion in model container [2024-12-17 16:11:57,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:11:56" (2/3) ... [2024-12-17 16:11:57,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c176ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:11:57, skipping insertion in model container [2024-12-17 16:11:57,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:11:57" (3/3) ... [2024-12-17 16:11:57,111 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2024-12-17 16:11:57,121 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 16:11:57,122 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-5.wvr.c that has 3 procedures, 18 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-12-17 16:11:57,123 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 16:11:57,165 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-17 16:11:57,200 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 16:11:57,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 16:11:57,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:11:57,208 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 16:11:57,224 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 16:11:57,283 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 16:11:57,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 16:11:57,301 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;@620e7a6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 16:11:57,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-17 16:11:57,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:11:57,411 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:11:57,411 INFO L139 ounterexampleChecker]: Examining path program with hash 1002541745, occurence #1 [2024-12-17 16:11:57,411 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 16:11:57,411 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:11:57,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:11:57,418 INFO L85 PathProgramCache]: Analyzing trace with hash 222407853, now seen corresponding path program 1 times [2024-12-17 16:11:57,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 16:11:57,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451238852] [2024-12-17 16:11:57,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:11:57,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 16:11:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:11:57,613 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 16:11:57,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 16:11:57,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451238852] [2024-12-17 16:11:57,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451238852] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:11:57,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:11:57,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 16:11:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285207189] [2024-12-17 16:11:57,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:11:57,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 16:11:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 16:11:57,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 16:11:57,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 16:11:57,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:57,631 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:11:57,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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 16:11:57,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:57,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:57,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 16:11:57,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:11:57,669 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:11:57,669 INFO L139 ounterexampleChecker]: Examining path program with hash 1002541745, occurence #2 [2024-12-17 16:11:57,669 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 16:11:57,669 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 16:11:57,670 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:11:57,670 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 16:11:57,681 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:11:57,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 16:11:57,682 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:11:57,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 16:11:57,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:11:57,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-17 16:11:57,682 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:11:57,682 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 16:11:57,682 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:11:57,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:11:57,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1694547971, now seen corresponding path program 1 times [2024-12-17 16:11:57,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 16:11:57,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339220364] [2024-12-17 16:11:57,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:11:57,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 16:11:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:11:57,799 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 16:11:57,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 16:11:57,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339220364] [2024-12-17 16:11:57,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339220364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:11:57,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:11:57,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 16:11:57,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211654926] [2024-12-17 16:11:57,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:11:57,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 16:11:57,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 16:11:57,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 16:11:57,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 16:11:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:57,802 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:11:57,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 16:11:57,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:57,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:57,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 16:11:57,837 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:11:57,837 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:11:57,837 INFO L139 ounterexampleChecker]: Examining path program with hash 1002541745, occurence #3 [2024-12-17 16:11:57,837 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 16:11:57,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 16:11:57,837 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:11:57,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 16:11:57,837 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:11:57,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 16:11:57,838 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:11:57,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-17 16:11:57,838 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:11:57,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 16:11:57,838 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:11:57,838 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 16:11:57,838 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:11:57,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:11:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1130323894, now seen corresponding path program 1 times [2024-12-17 16:11:57,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 16:11:57,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965736544] [2024-12-17 16:11:57,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:11:57,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 16:11:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:11:58,032 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 16:11:58,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 16:11:58,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965736544] [2024-12-17 16:11:58,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965736544] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:11:58,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:11:58,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 16:11:58,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275884210] [2024-12-17 16:11:58,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:11:58,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 16:11:58,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 16:11:58,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 16:11:58,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-17 16:11:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:58,033 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:11:58,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16:11:58,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 16:11:58,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-17 16:11:58,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:11:58,129 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:11:58,129 INFO L139 ounterexampleChecker]: Examining path program with hash -230737819, occurence #1 [2024-12-17 16:11:58,129 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 16:11:58,129 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:11:58,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:11:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash -418110457, now seen corresponding path program 1 times [2024-12-17 16:11:58,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 16:11:58,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088241964] [2024-12-17 16:11:58,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:11:58,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 16:11:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:11:58,254 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 16:11:58,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 16:11:58,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088241964] [2024-12-17 16:11:58,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088241964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:11:58,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:11:58,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 16:11:58,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875602353] [2024-12-17 16:11:58,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:11:58,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 16:11:58,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 16:11:58,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 16:11:58,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-17 16:11:58,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:58,255 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:11:58,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16:11:58,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 16:11:58,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:11:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:11:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 16:11:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 16:11:58,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-17 16:11:58,319 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:11:58,319 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:11:58,319 INFO L139 ounterexampleChecker]: Examining path program with hash 1718675527, occurence #1 [2024-12-17 16:11:58,319 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 16:11:58,319 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:11:58,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:11:58,320 INFO L85 PathProgramCache]: Analyzing trace with hash 810801059, now seen corresponding path program 1 times [2024-12-17 16:11:58,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 16:11:58,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980376330] [2024-12-17 16:11:58,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:11:58,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 16:11:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:11:58,553 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 16:11:58,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 16:11:58,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980376330] [2024-12-17 16:11:58,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980376330] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 16:11:58,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653285730] [2024-12-17 16:11:58,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:11:58,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:11:58,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:11:58,560 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 16:11:58,561 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 16:11:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:11:58,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-17 16:11:58,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 16:11:58,690 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 16:11:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 16:11:58,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 16:11:59,134 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 260 treesize of output 228 [2024-12-17 16:11:59,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 16:11:59,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 4032 treesize of output 2222 [2024-12-17 16:12:40,651 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 16:12:40,814 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 16:12:41,165 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 16:14:49,565 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-12-17 16:14:49,930 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 16:15:00,209 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-12-17 16:16:21,011 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-12-17 16:17:33,640 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2024-12-17 16:21:39,421 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 16:21:39,422 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-17 16:21:39,422 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 16:21:39,428 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 16:21:39,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:39,628 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 16:21:39,629 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.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2024-12-17 16:21:39,635 INFO L158 Benchmark]: Toolchain (without parser) took 583317.40ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 106.0MB in the beginning and 745.3MB in the end (delta: -639.3MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-12-17 16:21:39,635 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 16:21:39,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.62ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 16:21:39,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.94ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 91.8MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 16:21:39,635 INFO L158 Benchmark]: Boogie Preprocessor took 29.80ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.8MB in the end (delta: 981.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 16:21:39,636 INFO L158 Benchmark]: RCFGBuilder took 546.39ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 45.0MB in the end (delta: 45.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-17 16:21:39,636 INFO L158 Benchmark]: TraceAbstraction took 582528.54ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 44.0MB in the beginning and 745.3MB in the end (delta: -701.3MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-12-17 16:21:39,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.62ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.94ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 91.8MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.80ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.8MB in the end (delta: 981.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 546.39ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 45.0MB in the end (delta: 45.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 582528.54ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 44.0MB in the beginning and 745.3MB in the end (delta: -701.3MB). Peak memory consumption was 1.0GB. 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/unroll-5.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 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 --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 16:21:41,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 16:21:41,575 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-12-17 16:21:41,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 16:21:41,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 16:21:41,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 16:21:41,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 16:21:41,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 16:21:41,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 16:21:41,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 16:21:41,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 16:21:41,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 16:21:41,603 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 16:21:41,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 16:21:41,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 16:21:41,603 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 16:21:41,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 16:21:41,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 16:21:41,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 16:21:41,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 16:21:41,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 16:21:41,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 16:21:41,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 16:21:41,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 16:21:41,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 16:21:41,605 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 16:21:41,606 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 16:21:41,607 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 -> 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2024-12-17 16:21:41,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 16:21:41,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 16:21:41,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 16:21:41,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 16:21:41,845 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 16:21:41,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-12-17 16:21:43,075 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/d01024ac7/baeb69b3516641809584af0ac4a0e246/FLAGf76e59c0f [2024-12-17 16:21:43,256 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 16:21:43,257 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-12-17 16:21:43,262 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/d01024ac7/baeb69b3516641809584af0ac4a0e246/FLAGf76e59c0f [2024-12-17 16:21:43,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/d01024ac7/baeb69b3516641809584af0ac4a0e246 [2024-12-17 16:21:43,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 16:21:43,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 16:21:43,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 16:21:43,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 16:21:43,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 16:21:43,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5080e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43, skipping insertion in model container [2024-12-17 16:21:43,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 16:21:43,787 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/unroll-5.wvr.c[2670,2683] [2024-12-17 16:21:43,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 16:21:43,809 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 16:21:43,829 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/unroll-5.wvr.c[2670,2683] [2024-12-17 16:21:43,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 16:21:43,847 INFO L204 MainTranslator]: Completed translation [2024-12-17 16:21:43,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43 WrapperNode [2024-12-17 16:21:43,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 16:21:43,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 16:21:43,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 16:21:43,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 16:21:43,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,881 INFO L138 Inliner]: procedures = 25, calls = 28, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 146 [2024-12-17 16:21:43,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 16:21:43,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 16:21:43,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 16:21:43,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 16:21:43,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 16:21:43,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 16:21:43,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 16:21:43,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 16:21:43,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (1/1) ... [2024-12-17 16:21:43,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 16:21:43,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:43,941 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 16:21:43,946 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 16:21:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 16:21:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 16:21:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 16:21:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 16:21:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 16:21:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-17 16:21:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 16:21:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-17 16:21:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 16:21:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 16:21:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-17 16:21:43,964 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 16:21:44,045 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 16:21:44,047 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 16:21:44,309 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 16:21:44,309 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 16:21:44,538 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 16:21:44,538 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 16:21:44,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:21:44 BoogieIcfgContainer [2024-12-17 16:21:44,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 16:21:44,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 16:21:44,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 16:21:44,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 16:21:44,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:21:43" (1/3) ... [2024-12-17 16:21:44,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9ea1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:21:44, skipping insertion in model container [2024-12-17 16:21:44,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:21:43" (2/3) ... [2024-12-17 16:21:44,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9ea1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:21:44, skipping insertion in model container [2024-12-17 16:21:44,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:21:44" (3/3) ... [2024-12-17 16:21:44,546 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2024-12-17 16:21:44,555 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 16:21:44,556 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-5.wvr.c that has 3 procedures, 18 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-12-17 16:21:44,557 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 16:21:44,609 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-17 16:21:44,640 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 16:21:44,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 16:21:44,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:44,645 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 16:21:44,649 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 16:21:44,694 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 16:21:44,705 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 16:21:44,709 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;@6f4a3672, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 16:21:44,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-17 16:21:44,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:21:44,820 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:21:44,820 INFO L139 ounterexampleChecker]: Examining path program with hash 1813456847, occurence #1 [2024-12-17 16:21:44,820 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 16:21:44,820 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:21:44,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:21:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1123923667, now seen corresponding path program 1 times [2024-12-17 16:21:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 16:21:44,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962281502] [2024-12-17 16:21:44,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:21:44,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:44,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:44,855 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 16:21:44,859 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 16:21:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:21:44,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-17 16:21:44,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 16:21:45,025 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 16:21:45,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 16:21:45,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 16:21:45,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962281502] [2024-12-17 16:21:45,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962281502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:21:45,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:21:45,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 16:21:45,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945101540] [2024-12-17 16:21:45,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:21:45,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 16:21:45,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 16:21:45,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 16:21:45,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 16:21:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:45,045 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:21:45,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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 16:21:45,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:45,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:45,101 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 16:21:45,290 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 16:21:45,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:21:45,290 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:21:45,290 INFO L139 ounterexampleChecker]: Examining path program with hash 1813456847, occurence #2 [2024-12-17 16:21:45,290 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 16:21:45,291 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 16:21:45,291 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:21:45,291 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 16:21:45,312 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:45,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 16:21:45,313 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:45,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 16:21:45,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:21:45,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-17 16:21:45,314 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:45,314 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 16:21:45,314 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:21:45,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:21:45,315 INFO L85 PathProgramCache]: Analyzing trace with hash -481152135, now seen corresponding path program 1 times [2024-12-17 16:21:45,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 16:21:45,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729846766] [2024-12-17 16:21:45,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:21:45,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:45,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:45,322 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 16:21:45,326 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 16:21:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:21:45,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-17 16:21:45,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 16:21:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 16:21:45,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 16:21:45,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 16:21:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729846766] [2024-12-17 16:21:45,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729846766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:21:45,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:21:45,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 16:21:45,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102732012] [2024-12-17 16:21:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:21:45,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 16:21:45,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 16:21:45,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 16:21:45,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 16:21:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:45,447 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:21:45,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16:21:45,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:45,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:45,520 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 16:21:45,714 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 16:21:45,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:21:45,715 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:21:45,715 INFO L139 ounterexampleChecker]: Examining path program with hash 2032607793, occurence #1 [2024-12-17 16:21:45,715 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 16:21:45,715 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:21:45,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:21:45,715 INFO L85 PathProgramCache]: Analyzing trace with hash 231061302, now seen corresponding path program 1 times [2024-12-17 16:21:45,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 16:21:45,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038510087] [2024-12-17 16:21:45,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:21:45,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:45,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:45,719 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 16:21:45,720 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 16:21:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:21:45,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-17 16:21:45,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 16:21:45,795 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 16:21:45,795 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 16:21:45,795 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 16:21:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038510087] [2024-12-17 16:21:45,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038510087] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:21:45,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:21:45,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 16:21:45,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841707563] [2024-12-17 16:21:45,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:21:45,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 16:21:45,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 16:21:45,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 16:21:45,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-17 16:21:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:45,797 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:21:45,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16:21:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:45,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:45,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:45,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:45,874 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 16:21:46,068 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 16:21:46,068 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:21:46,069 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:21:46,069 INFO L139 ounterexampleChecker]: Examining path program with hash 1440373005, occurence #1 [2024-12-17 16:21:46,069 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 16:21:46,069 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:21:46,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:21:46,069 INFO L85 PathProgramCache]: Analyzing trace with hash -539710896, now seen corresponding path program 1 times [2024-12-17 16:21:46,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 16:21:46,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345014145] [2024-12-17 16:21:46,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:21:46,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:46,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:46,073 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 16:21:46,074 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 16:21:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:21:46,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 16:21:46,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 16:21:46,142 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 16:21:46,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 16:21:46,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 16:21:46,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345014145] [2024-12-17 16:21:46,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345014145] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 16:21:46,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 16:21:46,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 16:21:46,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939934876] [2024-12-17 16:21:46,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 16:21:46,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 16:21:46,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 16:21:46,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 16:21:46,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 16:21:46,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:46,144 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:21:46,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16:21:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:46,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:46,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:46,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:46,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:46,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-17 16:21:46,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:46,390 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:21:46,390 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:21:46,390 INFO L139 ounterexampleChecker]: Examining path program with hash 1440373005, occurence #2 [2024-12-17 16:21:46,390 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 16:21:46,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 16:21:46,390 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:21:46,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 16:21:46,390 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:46,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 16:21:46,390 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:46,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-12-17 16:21:46,391 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:46,391 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 16:21:46,391 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:21:46,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:21:46,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1346905185, now seen corresponding path program 1 times [2024-12-17 16:21:46,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 16:21:46,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443850833] [2024-12-17 16:21:46,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 16:21:46,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:46,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:46,393 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 16:21:46,395 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 16:21:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 16:21:46,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 16:21:46,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 16:21:46,535 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 16:21:46,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 16:21:46,769 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 16:21:46,770 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 16:21:46,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443850833] [2024-12-17 16:21:46,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443850833] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 16:21:46,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 16:21:46,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2024-12-17 16:21:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566994097] [2024-12-17 16:21:46,770 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-17 16:21:46,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-17 16:21:46,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 16:21:46,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-17 16:21:46,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-12-17 16:21:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:46,771 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 16:21:46,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 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 16:21:46,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:46,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:46,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:46,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:46,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 16:21:47,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 16:21:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 16:21:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-17 16:21:47,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-17 16:21:47,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:47,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 16:21:47,343 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 16:21:47,343 INFO L139 ounterexampleChecker]: Examining path program with hash 2032607793, occurence #2 [2024-12-17 16:21:47,343 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 16:21:47,343 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 16:21:47,343 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 16:21:47,343 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 16:21:47,343 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:47,343 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 16:21:47,343 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:47,343 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-12-17 16:21:47,343 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 16:21:47,343 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 16:21:47,343 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 16:21:47,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 16:21:47,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1908568836, now seen corresponding path program 2 times [2024-12-17 16:21:47,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 16:21:47,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1169615873] [2024-12-17 16:21:47,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 16:21:47,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 16:21:47,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 16:21:47,346 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 16:21:47,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-17 16:21:47,400 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 16:21:47,400 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 16:21:47,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-17 16:21:47,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 16:21:47,453 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 16:21:47,753 INFO L349 Elim1Store]: treesize reduction 47, result has 66.7 percent of original size [2024-12-17 16:21:47,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 126 [2024-12-17 16:21:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 16:21:48,988 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 16:21:51,999 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 222 treesize of output 194 [2024-12-17 16:21:52,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 16:21:52,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 10939 treesize of output 8571 Killed by 15