./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c --full-output --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1c4755c5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-ring.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 be394a9cdc866c1e1426a3fe296e99873bcf37ee5e7e1c9e487b239a3e0a8fbe --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 21:38:35,577 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 21:38:35,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 21:38:35,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 21:38:35,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 21:38:35,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 21:38:35,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 21:38:35,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 21:38:35,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 21:38:35,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 21:38:35,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 21:38:35,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 21:38:35,665 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 21:38:35,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 21:38:35,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 21:38:35,665 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 21:38:35,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 21:38:35,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 21:38:35,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 21:38:35,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 21:38:35,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 21:38:35,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 21:38:35,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 21:38:35,667 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 21:38:35,667 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 21:38:35,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 21:38:35,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 21:38:35,668 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 21:38:35,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 21:38:35,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 21:38:35,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 21:38:35,668 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 21:38:35,668 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 21:38:35,668 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 -> be394a9cdc866c1e1426a3fe296e99873bcf37ee5e7e1c9e487b239a3e0a8fbe Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 21:38:35,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 21:38:35,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 21:38:35,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 21:38:35,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 21:38:35,922 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 21:38:35,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2024-12-17 21:38:37,059 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/859a90373/8800d74934794ef380dcb82c839cb643/FLAG3bd8d7f35 [2024-12-17 21:38:37,339 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 21:38:37,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2024-12-17 21:38:37,348 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/859a90373/8800d74934794ef380dcb82c839cb643/FLAG3bd8d7f35 [2024-12-17 21:38:37,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/859a90373/8800d74934794ef380dcb82c839cb643 [2024-12-17 21:38:37,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 21:38:37,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 21:38:37,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 21:38:37,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 21:38:37,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 21:38:37,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59262692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37, skipping insertion in model container [2024-12-17 21:38:37,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,651 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 21:38:37,783 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3986,3999] [2024-12-17 21:38:37,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 21:38:37,801 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 21:38:37,821 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3986,3999] [2024-12-17 21:38:37,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 21:38:37,839 INFO L204 MainTranslator]: Completed translation [2024-12-17 21:38:37,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37 WrapperNode [2024-12-17 21:38:37,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 21:38:37,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 21:38:37,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 21:38:37,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 21:38:37,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,878 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 294 [2024-12-17 21:38:37,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 21:38:37,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 21:38:37,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 21:38:37,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 21:38:37,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,900 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 21:38:37,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 21:38:37,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 21:38:37,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 21:38:37,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (1/1) ... [2024-12-17 21:38:37,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 21:38:37,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:38:37,941 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 21:38:37,943 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 21:38:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 21:38:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 21:38:37,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 21:38:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 21:38:37,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 21:38:37,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 21:38:37,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 21:38:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 21:38:37,960 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 21:38:38,041 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 21:38:38,042 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 21:38:38,383 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 21:38:38,384 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 21:38:38,638 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 21:38:38,638 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-17 21:38:38,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:38:38 BoogieIcfgContainer [2024-12-17 21:38:38,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 21:38:38,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 21:38:38,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 21:38:38,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 21:38:38,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:38:37" (1/3) ... [2024-12-17 21:38:38,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea70abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:38:38, skipping insertion in model container [2024-12-17 21:38:38,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:38:37" (2/3) ... [2024-12-17 21:38:38,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea70abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:38:38, skipping insertion in model container [2024-12-17 21:38:38,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:38:38" (3/3) ... [2024-12-17 21:38:38,645 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring.wvr.c [2024-12-17 21:38:38,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 21:38:38,656 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-ring.wvr.c that has 4 procedures, 39 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-17 21:38:38,656 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 21:38:38,708 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 21:38:38,746 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 21:38:38,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 21:38:38,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:38:38,749 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 21:38:38,750 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 21:38:38,813 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 21:38:38,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 21:38:38,831 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;@1d586ccc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 21:38:38,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 21:38:39,156 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:39,156 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:39,156 INFO L139 ounterexampleChecker]: Examining path program with hash 503771908, occurence #1 [2024-12-17 21:38:39,156 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:39,156 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:39,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:39,160 INFO L85 PathProgramCache]: Analyzing trace with hash -258674241, now seen corresponding path program 1 times [2024-12-17 21:38:39,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:39,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62177260] [2024-12-17 21:38:39,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:39,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:39,337 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 21:38:39,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:39,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62177260] [2024-12-17 21:38:39,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62177260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:39,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:39,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 21:38:39,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698455101] [2024-12-17 21:38:39,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:39,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-17 21:38:39,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:39,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-17 21:38:39,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-17 21:38:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,358 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:39,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:38:39,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 21:38:39,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:39,439 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:39,439 INFO L139 ounterexampleChecker]: Examining path program with hash -2055432491, occurence #1 [2024-12-17 21:38:39,439 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:39,439 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:39,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:39,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1529977499, now seen corresponding path program 1 times [2024-12-17 21:38:39,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:39,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684093556] [2024-12-17 21:38:39,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:39,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:39,599 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 21:38:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:39,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684093556] [2024-12-17 21:38:39,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684093556] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:39,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:39,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 21:38:39,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303940441] [2024-12-17 21:38:39,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:39,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 21:38:39,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:39,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 21:38:39,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 21:38:39,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,601 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:39,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:38:39,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:39,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 21:38:39,775 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:39,775 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:39,776 INFO L139 ounterexampleChecker]: Examining path program with hash 813329684, occurence #1 [2024-12-17 21:38:39,776 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:39,776 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:39,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash -885250134, now seen corresponding path program 1 times [2024-12-17 21:38:39,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:39,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536348868] [2024-12-17 21:38:39,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:39,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:39,906 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 21:38:39,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:39,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536348868] [2024-12-17 21:38:39,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536348868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:39,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:39,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 21:38:39,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776873551] [2024-12-17 21:38:39,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:39,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 21:38:39,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:39,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 21:38:39,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 21:38:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,908 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:39,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 21:38:39,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:39,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:39,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-17 21:38:40,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:40,014 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:40,014 INFO L139 ounterexampleChecker]: Examining path program with hash -1638921276, occurence #1 [2024-12-17 21:38:40,014 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:40,015 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:40,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:40,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1611471944, now seen corresponding path program 2 times [2024-12-17 21:38:40,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:40,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244688941] [2024-12-17 21:38:40,015 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:38:40,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:40,051 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 21:38:40,051 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:40,196 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 21:38:40,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:40,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244688941] [2024-12-17 21:38:40,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244688941] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:40,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:40,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 21:38:40,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916575193] [2024-12-17 21:38:40,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:40,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 21:38:40,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:40,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:38:40,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:38:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,198 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:40,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 21:38:40,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-17 21:38:40,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:40,276 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:40,276 INFO L139 ounterexampleChecker]: Examining path program with hash -1638921276, occurence #2 [2024-12-17 21:38:40,276 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:38:40,276 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:38:40,277 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,277 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 21:38:40,277 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,277 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 21:38:40,287 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,287 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-17 21:38:40,287 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,287 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-17 21:38:40,287 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,287 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 21:38:40,287 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,287 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 21:38:40,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:40,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1074765481, now seen corresponding path program 1 times [2024-12-17 21:38:40,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:38:40,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440198351] [2024-12-17 21:38:40,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:40,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:40,430 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 21:38:40,430 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 21:38:40,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440198351] [2024-12-17 21:38:40,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440198351] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:40,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:40,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 21:38:40,432 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 22. Constructing proof automaton... [2024-12-17 21:38:40,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:40,433 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-12-17 21:38:40,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 21:38:40,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-12-17 21:38:40,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:38:40,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:38:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,433 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:40,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:38:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-17 21:38:40,525 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:40,525 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:40,525 INFO L139 ounterexampleChecker]: Examining path program with hash -1638921276, occurence #3 [2024-12-17 21:38:40,525 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:38:40,525 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:38:40,525 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,525 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 21:38:40,525 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,525 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 21:38:40,526 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,526 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 21:38:40,526 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,526 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-17 21:38:40,526 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,526 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-12-17 21:38:40,526 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,526 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-17 21:38:40,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash 312182527, now seen corresponding path program 1 times [2024-12-17 21:38:40,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:38:40,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556495684] [2024-12-17 21:38:40,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:40,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:38:40,648 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 21:38:40,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556495684] [2024-12-17 21:38:40,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556495684] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:40,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:40,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 21:38:40,649 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 23. Constructing proof automaton... [2024-12-17 21:38:40,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:40,649 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-12-17 21:38:40,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 21:38:40,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-12-17 21:38:40,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:38:40,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:38:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,649 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:40,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:38:40,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:40,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-17 21:38:40,715 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:40,715 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:40,715 INFO L139 ounterexampleChecker]: Examining path program with hash -1638921276, occurence #4 [2024-12-17 21:38:40,715 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:38:40,715 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:38:40,715 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,715 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 21:38:40,715 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,715 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 21:38:40,715 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,715 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 21:38:40,715 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,715 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 21:38:40,715 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:40,715 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-17 21:38:40,716 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:40,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-12-17 21:38:40,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash -450498991, now seen corresponding path program 1 times [2024-12-17 21:38:40,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:38:40,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694968674] [2024-12-17 21:38:40,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:40,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:41,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 21:38:41,428 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 21:38:41,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694968674] [2024-12-17 21:38:41,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694968674] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:41,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [713044766] [2024-12-17 21:38:41,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:41,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:41,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-17 21:38:41,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:38:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:38:41,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [713044766] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:41,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 21:38:41,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2024-12-17 21:38:41,671 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-17 21:38:41,671 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-17 21:38:41,671 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:41,671 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-17 21:38:41,671 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:41,671 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:38:41,671 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:41,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:41,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1763115538, now seen corresponding path program 1 times [2024-12-17 21:38:41,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:41,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129878904] [2024-12-17 21:38:41,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:41,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:38:41,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:41,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129878904] [2024-12-17 21:38:41,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129878904] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:41,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900711848] [2024-12-17 21:38:41,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:41,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:38:41,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:38:41,893 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 21:38:41,894 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 21:38:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:41,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-17 21:38:41,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:38:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:38:42,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:38:42,151 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 12 treesize of output 4 [2024-12-17 21:38:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:38:42,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900711848] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:38:42,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:38:42,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-12-17 21:38:42,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912078192] [2024-12-17 21:38:42,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:38:42,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-17 21:38:42,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:42,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-17 21:38:42,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-12-17 21:38:42,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:42,346 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:42,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.0) internal successors, (96), 15 states have internal predecessors, (96), 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 21:38:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:42,525 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 21:38:42,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:38:42,723 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:42,723 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:42,723 INFO L139 ounterexampleChecker]: Examining path program with hash -1638921276, occurence #5 [2024-12-17 21:38:42,723 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:38:42,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:38:42,723 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:42,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 21:38:42,723 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:42,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-17 21:38:42,723 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:42,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-17 21:38:42,723 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:42,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-12-17 21:38:42,723 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:42,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 21:38:42,723 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:42,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-17 21:38:42,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:42,755 INFO L85 PathProgramCache]: Analyzing trace with hash 159164654, now seen corresponding path program 1 times [2024-12-17 21:38:42,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:38:42,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099402822] [2024-12-17 21:38:42,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:42,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:38:43,238 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 21:38:43,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099402822] [2024-12-17 21:38:43,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099402822] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:43,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [475550810] [2024-12-17 21:38:43,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:43,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:43,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-17 21:38:43,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:38:43,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:38:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [475550810] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:43,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 21:38:43,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-17 21:38:43,469 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-17 21:38:43,469 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-12-17 21:38:43,470 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:43,470 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-12-17 21:38:43,470 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:43,470 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:38:43,470 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:43,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:43,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1304703596, now seen corresponding path program 2 times [2024-12-17 21:38:43,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:43,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047429111] [2024-12-17 21:38:43,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:38:43,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:43,507 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 21:38:43,507 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-17 21:38:43,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047429111] [2024-12-17 21:38:43,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047429111] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:43,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:43,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 21:38:43,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329850176] [2024-12-17 21:38:43,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:43,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 21:38:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:43,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 21:38:43,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 21:38:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,615 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:43,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:43,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:43,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9 [2024-12-17 21:38:43,706 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:43,706 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:43,706 INFO L139 ounterexampleChecker]: Examining path program with hash -2137046959, occurence #1 [2024-12-17 21:38:43,706 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:43,706 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:43,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:43,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1339258904, now seen corresponding path program 1 times [2024-12-17 21:38:43,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:43,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813136745] [2024-12-17 21:38:43,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:43,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-17 21:38:43,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:43,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813136745] [2024-12-17 21:38:43,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813136745] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:43,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:43,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 21:38:43,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770207021] [2024-12-17 21:38:43,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:43,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 21:38:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:43,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:38:43,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:38:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,788 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:43,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:43,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:43,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-17 21:38:43,855 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:43,855 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:43,855 INFO L139 ounterexampleChecker]: Examining path program with hash 332448709, occurence #1 [2024-12-17 21:38:43,855 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:43,855 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:43,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2000388580, now seen corresponding path program 2 times [2024-12-17 21:38:43,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:43,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355591458] [2024-12-17 21:38:43,855 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:38:43,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:43,890 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 21:38:43,891 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-17 21:38:44,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:44,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355591458] [2024-12-17 21:38:44,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355591458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:44,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:44,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-17 21:38:44,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288375387] [2024-12-17 21:38:44,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:44,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-17 21:38:44,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:44,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-17 21:38:44,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-17 21:38:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,145 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:44,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-17 21:38:44,326 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:44,326 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:44,326 INFO L139 ounterexampleChecker]: Examining path program with hash 575424213, occurence #1 [2024-12-17 21:38:44,326 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:44,326 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:44,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:44,326 INFO L85 PathProgramCache]: Analyzing trace with hash 59753258, now seen corresponding path program 1 times [2024-12-17 21:38:44,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:44,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104311579] [2024-12-17 21:38:44,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:38:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 21:38:44,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:44,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104311579] [2024-12-17 21:38:44,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104311579] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:38:44,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:38:44,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 21:38:44,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674116537] [2024-12-17 21:38:44,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:38:44,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 21:38:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:44,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:38:44,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:38:44,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,398 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:44,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 21:38:44,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-17 21:38:44,480 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:44,480 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:44,480 INFO L139 ounterexampleChecker]: Examining path program with hash -1857766428, occurence #1 [2024-12-17 21:38:44,480 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:38:44,480 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:44,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1200811966, now seen corresponding path program 2 times [2024-12-17 21:38:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:44,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478795780] [2024-12-17 21:38:44,481 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:38:44,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:44,527 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 21:38:44,527 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-17 21:38:44,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478795780] [2024-12-17 21:38:44,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478795780] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882761587] [2024-12-17 21:38:44,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:38:44,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:38:44,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:38:44,626 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 21:38:44,628 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 21:38:44,732 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 21:38:44,732 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:44,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 21:38:44,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:38:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-17 21:38:44,814 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:38:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-17 21:38:44,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882761587] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:38:44,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:38:44,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-17 21:38:44,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463526104] [2024-12-17 21:38:44,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:38:44,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-17 21:38:44,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:44,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-17 21:38:44,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-12-17 21:38:44,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,915 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:44,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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 21:38:44,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:44,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:44,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:45,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:38:45,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-17 21:38:45,223 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,SelfDestructingSolverStorable15 [2024-12-17 21:38:45,224 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:45,224 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:45,224 INFO L139 ounterexampleChecker]: Examining path program with hash -1857766428, occurence #2 [2024-12-17 21:38:45,224 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:38:45,224 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:38:45,225 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:45,225 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 21:38:45,225 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:45,225 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 21:38:45,225 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:45,225 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-17 21:38:45,225 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:45,225 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-12-17 21:38:45,225 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:45,225 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-12-17 21:38:45,225 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:45,225 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-17 21:38:45,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash -341777589, now seen corresponding path program 1 times [2024-12-17 21:38:45,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:38:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508172343] [2024-12-17 21:38:45,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:45,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 21:38:45,285 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-12-17 21:38:45,286 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-12-17 21:38:45,286 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-12-17 21:38:45,286 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:45,286 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-17 21:38:45,286 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:45,286 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-12-17 21:38:45,286 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:45,286 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:38:45,286 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:45,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:45,286 INFO L85 PathProgramCache]: Analyzing trace with hash -222240275, now seen corresponding path program 3 times [2024-12-17 21:38:45,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:45,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030635923] [2024-12-17 21:38:45,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 21:38:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:45,313 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 21:38:45,313 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 21:38:45,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:45,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030635923] [2024-12-17 21:38:45,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030635923] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:45,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984372390] [2024-12-17 21:38:45,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 21:38:45,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:38:45,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:38:45,453 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 21:38:45,457 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 21:38:45,574 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 21:38:45,574 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:45,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-17 21:38:45,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:38:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 21:38:45,710 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:38:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 21:38:45,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984372390] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:38:45,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:38:45,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2024-12-17 21:38:45,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203377602] [2024-12-17 21:38:45,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:38:45,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-17 21:38:45,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:45,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-17 21:38:45,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-12-17 21:38:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:45,900 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:45,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:38:45,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:45,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:45,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:45,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:38:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:38:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:46,128 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 21:38:46,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-17 21:38:46,327 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:38:46,327 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:38:46,327 INFO L139 ounterexampleChecker]: Examining path program with hash -1857766428, occurence #3 [2024-12-17 21:38:46,327 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:38:46,327 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:38:46,327 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:46,327 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 21:38:46,327 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:46,327 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 21:38:46,327 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:46,327 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 21:38:46,327 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:46,327 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 21:38:46,327 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:46,327 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-17 21:38:46,327 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:46,327 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-12-17 21:38:46,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:46,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1973222827, now seen corresponding path program 1 times [2024-12-17 21:38:46,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:38:46,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797245674] [2024-12-17 21:38:46,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:38:46,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 21:38:46,398 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-12-17 21:38:46,398 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-12-17 21:38:46,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-12-17 21:38:46,398 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:46,399 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-12-17 21:38:46,399 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:38:46,399 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2024-12-17 21:38:46,399 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:38:46,399 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:38:46,399 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:38:46,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:38:46,400 INFO L85 PathProgramCache]: Analyzing trace with hash -222931214, now seen corresponding path program 4 times [2024-12-17 21:38:46,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:38:46,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019126018] [2024-12-17 21:38:46,400 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 21:38:46,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:38:46,440 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 21:38:46,440 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 21:38:48,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:38:48,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019126018] [2024-12-17 21:38:48,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019126018] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:38:48,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117015129] [2024-12-17 21:38:48,408 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 21:38:48,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:38:48,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:38:48,410 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 21:38:48,411 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 21:38:48,515 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 21:38:48,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:38:48,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-17 21:38:48,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:38:49,323 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2024-12-17 21:38:49,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 69 [2024-12-17 21:38:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-17 21:38:49,335 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:38:50,024 INFO L349 Elim1Store]: treesize reduction 8, result has 96.8 percent of original size [2024-12-17 21:38:50,025 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 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 267 [2024-12-17 21:38:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-17 21:38:59,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117015129] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:38:59,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:38:59,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14, 13] total 44 [2024-12-17 21:38:59,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997784768] [2024-12-17 21:38:59,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:38:59,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-12-17 21:38:59,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:38:59,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-12-17 21:38:59,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1743, Unknown=0, NotChecked=0, Total=1892 [2024-12-17 21:38:59,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:59,636 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:38:59,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.727272727272727) internal successors, (120), 44 states have internal predecessors, (120), 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 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:38:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:02,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-17 21:39:03,018 WARN L331 ript$VariableManager]: TermVariable ~q1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,018 WARN L331 ript$VariableManager]: TermVariable ~q1_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,018 WARN L331 ript$VariableManager]: TermVariable ~q2~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,018 WARN L331 ript$VariableManager]: TermVariable ~q1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,018 WARN L331 ript$VariableManager]: TermVariable ~q2_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,018 WARN L331 ript$VariableManager]: TermVariable ~q2~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,401 WARN L331 ript$VariableManager]: TermVariable ~q1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,401 WARN L331 ript$VariableManager]: TermVariable ~q1_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,401 WARN L331 ript$VariableManager]: TermVariable ~q2~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,401 WARN L331 ript$VariableManager]: TermVariable ~q1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,401 WARN L331 ript$VariableManager]: TermVariable ~q2_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,402 WARN L331 ript$VariableManager]: TermVariable ~q2~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,454 WARN L331 ript$VariableManager]: TermVariable ~q1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,455 WARN L331 ript$VariableManager]: TermVariable ~q1_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,455 WARN L331 ript$VariableManager]: TermVariable ~q2~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,455 WARN L331 ript$VariableManager]: TermVariable ~q1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,455 WARN L331 ript$VariableManager]: TermVariable ~q2_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,455 WARN L331 ript$VariableManager]: TermVariable ~q2~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,823 WARN L331 ript$VariableManager]: TermVariable ~q1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,824 WARN L331 ript$VariableManager]: TermVariable ~q1_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,824 WARN L331 ript$VariableManager]: TermVariable ~q2~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,824 WARN L331 ript$VariableManager]: TermVariable ~q1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,824 WARN L331 ript$VariableManager]: TermVariable ~q2_front~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,824 WARN L331 ript$VariableManager]: TermVariable ~q2~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-17 21:39:03,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-17 21:39:04,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:04,161 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:39:04,161 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:39:04,161 INFO L139 ounterexampleChecker]: Examining path program with hash 401095290, occurence #1 [2024-12-17 21:39:04,161 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:39:04,161 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:39:04,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2115452111, now seen corresponding path program 5 times [2024-12-17 21:39:04,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:39:04,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047248399] [2024-12-17 21:39:04,162 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 21:39:04,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:04,209 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 21:39:04,209 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 21:39:04,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:39:04,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047248399] [2024-12-17 21:39:04,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047248399] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:39:04,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188458943] [2024-12-17 21:39:04,629 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 21:39:04,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:39:04,631 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 21:39:04,633 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 21:39:04,762 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 21:39:04,763 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:04,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-17 21:39:04,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:39:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-17 21:39:04,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:39:04,875 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-12-17 21:39:04,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 11 [2024-12-17 21:39:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-17 21:39:04,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188458943] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:39:04,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:39:04,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 6] total 18 [2024-12-17 21:39:04,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117246601] [2024-12-17 21:39:04,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:39:04,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-17 21:39:04,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:39:04,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-17 21:39:04,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-17 21:39:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:04,901 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:39:04,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 18 states have internal predecessors, (102), 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 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:04,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:04,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:04,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:04,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:04,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-12-17 21:39:04,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-17 21:39:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-17 21:39:05,386 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 21:39:05,578 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,SelfDestructingSolverStorable20 [2024-12-17 21:39:05,579 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:39:05,579 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:39:05,579 INFO L139 ounterexampleChecker]: Examining path program with hash 612797683, occurence #1 [2024-12-17 21:39:05,579 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:39:05,579 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:39:05,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:05,579 INFO L85 PathProgramCache]: Analyzing trace with hash 591599267, now seen corresponding path program 6 times [2024-12-17 21:39:05,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:39:05,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608584411] [2024-12-17 21:39:05,579 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-17 21:39:05,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:05,621 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-12-17 21:39:05,621 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-17 21:39:05,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:39:05,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608584411] [2024-12-17 21:39:05,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608584411] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:39:05,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769177608] [2024-12-17 21:39:05,837 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-17 21:39:05,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:05,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:39:05,839 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 21:39:05,841 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 21:39:06,129 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-12-17 21:39:06,129 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:06,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-17 21:39:06,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:39:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-17 21:39:06,311 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:39:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-17 21:39:06,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769177608] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:39:06,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:39:06,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2024-12-17 21:39:06,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176481763] [2024-12-17 21:39:06,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:39:06,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-17 21:39:06,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:39:06,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-17 21:39:06,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-12-17 21:39:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:06,498 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:39:06,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.875) internal successors, (141), 24 states have internal predecessors, (141), 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 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-17 21:39:06,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-17 21:39:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-17 21:39:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 21:39:06,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-17 21:39:06,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:06,889 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:39:06,889 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:39:06,889 INFO L139 ounterexampleChecker]: Examining path program with hash 612797683, occurence #2 [2024-12-17 21:39:06,889 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:39:06,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:39:06,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:06,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 21:39:06,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:06,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 21:39:06,889 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:06,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 21:39:06,889 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:06,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 21:39:06,890 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:06,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-17 21:39:06,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:06,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-12-17 21:39:06,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2096613450, now seen corresponding path program 1 times [2024-12-17 21:39:06,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:39:06,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160601396] [2024-12-17 21:39:06,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:39:06,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 21:39:06,947 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-12-17 21:39:06,947 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-12-17 21:39:06,948 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-12-17 21:39:06,948 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:06,948 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-12-17 21:39:06,948 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:06,948 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-12-17 21:39:06,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:06,969 INFO L85 PathProgramCache]: Analyzing trace with hash 328420314, now seen corresponding path program 1 times [2024-12-17 21:39:06,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:39:06,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163623734] [2024-12-17 21:39:06,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:39:06,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:39:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 21:39:08,355 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 21:39:08,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163623734] [2024-12-17 21:39:08,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163623734] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:39:08,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [281696298] [2024-12-17 21:39:08,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:39:08,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:39:08,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-12-17 21:39:08,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:39:09,430 INFO L349 Elim1Store]: treesize reduction 6, result has 77.8 percent of original size [2024-12-17 21:39:09,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 30 [2024-12-17 21:39:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 21:39:09,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [281696298] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:39:09,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 21:39:09,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 40 [2024-12-17 21:39:09,475 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-17 21:39:09,475 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2024-12-17 21:39:09,476 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:09,476 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2024-12-17 21:39:09,476 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:09,476 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:39:09,476 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:39:09,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:09,476 INFO L85 PathProgramCache]: Analyzing trace with hash 721230738, now seen corresponding path program 7 times [2024-12-17 21:39:09,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:39:09,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077523695] [2024-12-17 21:39:09,476 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-17 21:39:09,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:39:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 21:39:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:39:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077523695] [2024-12-17 21:39:10,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077523695] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:39:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133536298] [2024-12-17 21:39:10,750 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-17 21:39:10,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:10,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:39:10,752 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 21:39:10,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-17 21:39:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:39:10,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-17 21:39:10,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:39:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 21:39:11,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:39:13,717 INFO L349 Elim1Store]: treesize reduction 12, result has 91.8 percent of original size [2024-12-17 21:39:13,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 151 [2024-12-17 21:39:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-17 21:39:14,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133536298] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:39:14,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:39:14,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 11] total 43 [2024-12-17 21:39:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81020157] [2024-12-17 21:39:14,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:39:14,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-12-17 21:39:14,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:39:14,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-12-17 21:39:14,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1691, Unknown=1, NotChecked=0, Total=1806 [2024-12-17 21:39:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:14,151 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:39:14,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.4186046511627906) internal successors, (147), 43 states have internal predecessors, (147), 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 21:39:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-17 21:39:14,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:16,280 WARN L331 ript$VariableManager]: TermVariable v_subst_15 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,483 WARN L331 ript$VariableManager]: TermVariable ~q2~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,483 WARN L331 ript$VariableManager]: TermVariable v_subst_17 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,483 WARN L331 ript$VariableManager]: TermVariable ~q2~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,483 WARN L331 ript$VariableManager]: TermVariable v_~q2_front~0_108 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,632 WARN L331 ript$VariableManager]: TermVariable ~q2~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,632 WARN L331 ript$VariableManager]: TermVariable v_subst_17 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,632 WARN L331 ript$VariableManager]: TermVariable ~q2~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,632 WARN L331 ript$VariableManager]: TermVariable v_~q2_front~0_108 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-17 21:39:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-17 21:39:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 21:39:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-17 21:39:16,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-17 21:39:16,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:16,974 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:39:16,974 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:39:16,974 INFO L139 ounterexampleChecker]: Examining path program with hash 348053886, occurence #1 [2024-12-17 21:39:16,974 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:39:16,974 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:39:16,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:16,974 INFO L85 PathProgramCache]: Analyzing trace with hash 409136786, now seen corresponding path program 8 times [2024-12-17 21:39:16,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:39:16,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367592531] [2024-12-17 21:39:16,974 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:39:16,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:17,005 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 21:39:17,005 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-17 21:39:17,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:39:17,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367592531] [2024-12-17 21:39:17,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367592531] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:39:17,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383197250] [2024-12-17 21:39:17,157 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:39:17,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:17,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:39:17,159 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 21:39:17,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-17 21:39:17,387 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 21:39:17,387 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:17,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-17 21:39:17,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:39:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-17 21:39:17,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:39:17,674 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-17 21:39:17,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383197250] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 21:39:17,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 21:39:17,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-12-17 21:39:17,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721845426] [2024-12-17 21:39:17,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 21:39:17,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-17 21:39:17,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 21:39:17,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-17 21:39:17,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-12-17 21:39:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:17,676 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:39:17,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 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 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:17,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-12-17 21:39:17,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-17 21:39:17,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-17 21:39:17,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-12-17 21:39:17,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:39:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:39:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 21:39:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:39:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 21:39:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-17 21:39:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-17 21:39:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 21:39:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-17 21:39:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-17 21:39:17,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-17 21:39:18,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:18,012 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:39:18,012 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:39:18,013 INFO L139 ounterexampleChecker]: Examining path program with hash 348053886, occurence #2 [2024-12-17 21:39:18,013 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:39:18,013 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:39:18,013 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:18,013 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 21:39:18,013 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:18,013 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-12-17 21:39:18,013 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:18,013 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-17 21:39:18,013 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:18,013 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-17 21:39:18,013 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:18,013 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-12-17 21:39:18,013 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:18,013 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-12-17 21:39:18,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:18,037 INFO L85 PathProgramCache]: Analyzing trace with hash -523773823, now seen corresponding path program 1 times [2024-12-17 21:39:18,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:39:18,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306657804] [2024-12-17 21:39:18,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:39:18,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 21:39:18,080 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-12-17 21:39:18,080 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-12-17 21:39:18,080 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-12-17 21:39:18,080 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:18,080 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-12-17 21:39:18,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:18,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1614534608, now seen corresponding path program 1 times [2024-12-17 21:39:18,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 21:39:18,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023726104] [2024-12-17 21:39:18,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:39:18,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-17 21:39:18,167 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-12-17 21:39:18,171 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-12-17 21:39:18,171 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2024-12-17 21:39:18,171 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:18,171 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2024-12-17 21:39:18,171 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:39:18,171 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-12-17 21:39:18,172 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:39:18,172 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:39:18,172 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:39:18,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:39:18,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2023750307, now seen corresponding path program 9 times [2024-12-17 21:39:18,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 21:39:18,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551553754] [2024-12-17 21:39:18,173 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 21:39:18,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 21:39:18,264 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-17 21:39:18,264 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-17 21:39:20,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 21:39:20,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551553754] [2024-12-17 21:39:20,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551553754] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 21:39:20,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712984655] [2024-12-17 21:39:20,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 21:39:20,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:39:20,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:39:20,580 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 21:39:20,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-17 21:39:20,791 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-17 21:39:20,792 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 21:39:20,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-12-17 21:39:20,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:39:25,068 INFO L349 Elim1Store]: treesize reduction 148, result has 53.2 percent of original size [2024-12-17 21:39:25,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 104 treesize of output 197 [2024-12-17 21:39:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-17 21:39:25,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:39:28,484 INFO L349 Elim1Store]: treesize reduction 106, result has 91.4 percent of original size [2024-12-17 21:39:28,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 163 treesize of output 1174 [2024-12-17 21:44:49,086 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 21:44:49,086 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 21:44:49,087 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-17 21:44:49,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-17 21:44:49,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27,SelfDestructingSolverStorable28 [2024-12-17 21:44:49,293 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 21:44:49,294 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 21:44:49,297 INFO L158 Benchmark]: Toolchain (without parser) took 371665.87ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 112.2MB in the beginning and 1.0GB in the end (delta: -908.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-12-17 21:44:49,298 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 226.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 21:44:49,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.21ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 99.1MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 21:44:49,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.34ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-17 21:44:49,298 INFO L158 Benchmark]: Boogie Preprocessor took 34.73ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 95.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-17 21:44:49,298 INFO L158 Benchmark]: RCFGBuilder took 723.01ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 84.0MB in the end (delta: 11.4MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-12-17 21:44:49,298 INFO L158 Benchmark]: TraceAbstraction took 370656.86ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 83.3MB in the beginning and 1.0GB in the end (delta: -937.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-12-17 21:44:49,299 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 226.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.21ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 99.1MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.34ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.73ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 95.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 723.01ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 84.0MB in the end (delta: 11.4MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 370656.86ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 83.3MB in the beginning and 1.0GB in the end (delta: -937.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-ring.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 be394a9cdc866c1e1426a3fe296e99873bcf37ee5e7e1c9e487b239a3e0a8fbe --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 21:44:51,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 21:44:51,123 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-12-17 21:44:51,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 21:44:51,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 21:44:51,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 21:44:51,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 21:44:51,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 21:44:51,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 21:44:51,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 21:44:51,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 21:44:51,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 21:44:51,145 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 21:44:51,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 21:44:51,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 21:44:51,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 21:44:51,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 21:44:51,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 21:44:51,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 21:44:51,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 21:44:51,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 21:44:51,146 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 21:44:51,147 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 21:44:51,147 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 -> be394a9cdc866c1e1426a3fe296e99873bcf37ee5e7e1c9e487b239a3e0a8fbe Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 21:44:51,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 21:44:51,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 21:44:51,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 21:44:51,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 21:44:51,370 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 21:44:51,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2024-12-17 21:44:52,426 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/6f81b47a6/82ee7303d5eb4977af7dad334e3b9802/FLAG5cb43eb76 [2024-12-17 21:44:52,605 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 21:44:52,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2024-12-17 21:44:52,614 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/6f81b47a6/82ee7303d5eb4977af7dad334e3b9802/FLAG5cb43eb76 [2024-12-17 21:44:52,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/6f81b47a6/82ee7303d5eb4977af7dad334e3b9802 [2024-12-17 21:44:52,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 21:44:52,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 21:44:52,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 21:44:52,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 21:44:52,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 21:44:52,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:44:52" (1/1) ... [2024-12-17 21:44:52,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1674c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:52, skipping insertion in model container [2024-12-17 21:44:52,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:44:52" (1/1) ... [2024-12-17 21:44:53,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 21:44:53,121 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3986,3999] [2024-12-17 21:44:53,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 21:44:53,135 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 21:44:53,158 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3986,3999] [2024-12-17 21:44:53,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 21:44:53,179 INFO L204 MainTranslator]: Completed translation [2024-12-17 21:44:53,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53 WrapperNode [2024-12-17 21:44:53,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 21:44:53,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 21:44:53,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 21:44:53,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 21:44:53,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,220 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 284 [2024-12-17 21:44:53,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 21:44:53,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 21:44:53,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 21:44:53,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 21:44:53,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,235 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 21:44:53,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 21:44:53,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 21:44:53,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 21:44:53,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (1/1) ... [2024-12-17 21:44:53,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 21:44:53,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:53,271 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 21:44:53,274 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 21:44:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 21:44:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-17 21:44:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-17 21:44:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 21:44:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 21:44:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 21:44:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 21:44:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 21:44:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 21:44:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-17 21:44:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-17 21:44:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 21:44:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 21:44:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 21:44:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-17 21:44:53,297 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 21:44:53,398 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 21:44:53,400 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 21:44:53,826 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 21:44:53,826 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 21:44:54,071 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 21:44:54,071 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-17 21:44:54,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:44:54 BoogieIcfgContainer [2024-12-17 21:44:54,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 21:44:54,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 21:44:54,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 21:44:54,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 21:44:54,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:44:52" (1/3) ... [2024-12-17 21:44:54,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ab0888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:44:54, skipping insertion in model container [2024-12-17 21:44:54,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:44:53" (2/3) ... [2024-12-17 21:44:54,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ab0888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:44:54, skipping insertion in model container [2024-12-17 21:44:54,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:44:54" (3/3) ... [2024-12-17 21:44:54,078 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring.wvr.c [2024-12-17 21:44:54,089 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 21:44:54,091 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-ring.wvr.c that has 4 procedures, 39 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-17 21:44:54,091 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 21:44:54,137 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 21:44:54,170 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 21:44:54,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 21:44:54,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:54,173 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 21:44:54,174 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 21:44:54,237 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 21:44:54,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 21:44:54,255 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;@47fb7f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 21:44:54,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 21:44:54,751 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:44:54,751 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:44:54,751 INFO L139 ounterexampleChecker]: Examining path program with hash -1806742034, occurence #1 [2024-12-17 21:44:54,752 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:44:54,752 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:44:54,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:44:54,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1420117683, now seen corresponding path program 1 times [2024-12-17 21:44:54,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 21:44:54,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724481336] [2024-12-17 21:44:54,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:44:54,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:54,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:54,789 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 21:44:54,791 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 21:44:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:44:54,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-17 21:44:54,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:44:54,902 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 21:44:54,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 21:44:54,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 21:44:54,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724481336] [2024-12-17 21:44:54,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724481336] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:44:54,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:44:54,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 21:44:54,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979186620] [2024-12-17 21:44:54,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:44:54,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-17 21:44:54,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 21:44:54,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-17 21:44:54,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-17 21:44:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:54,924 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:44:54,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:44:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:55,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-17 21:44:55,272 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 21:44:55,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:44:55,273 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:44:55,273 INFO L139 ounterexampleChecker]: Examining path program with hash -845715600, occurence #1 [2024-12-17 21:44:55,273 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:44:55,273 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:44:55,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:44:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1870918695, now seen corresponding path program 1 times [2024-12-17 21:44:55,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 21:44:55,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [749289373] [2024-12-17 21:44:55,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:44:55,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:55,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:55,277 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 21:44:55,278 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 21:44:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:44:55,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-17 21:44:55,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:44:55,410 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 21:44:55,410 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 21:44:55,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 21:44:55,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749289373] [2024-12-17 21:44:55,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749289373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:44:55,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:44:55,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 21:44:55,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608017730] [2024-12-17 21:44:55,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:44:55,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 21:44:55,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 21:44:55,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 21:44:55,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 21:44:55,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:55,413 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:44:55,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:44:55,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:55,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:55,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-17 21:44:55,985 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 21:44:55,985 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:44:55,985 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:44:55,985 INFO L139 ounterexampleChecker]: Examining path program with hash 590368473, occurence #1 [2024-12-17 21:44:55,985 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:44:55,986 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:44:55,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:44:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1107300126, now seen corresponding path program 1 times [2024-12-17 21:44:55,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 21:44:55,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320429888] [2024-12-17 21:44:55,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:44:55,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:55,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:55,988 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 21:44:55,989 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 21:44:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:44:56,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 21:44:56,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:44:56,150 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 21:44:56,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 21:44:56,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 21:44:56,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320429888] [2024-12-17 21:44:56,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320429888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:44:56,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:44:56,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 21:44:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510704958] [2024-12-17 21:44:56,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:44:56,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 21:44:56,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 21:44:56,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:44:56,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:44:56,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,153 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:44:56,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 21:44:56,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:56,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:56,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:56,273 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 21:44:56,466 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 21:44:56,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:44:56,467 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:44:56,467 INFO L139 ounterexampleChecker]: Examining path program with hash 590368473, occurence #2 [2024-12-17 21:44:56,467 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:44:56,467 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:44:56,468 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,468 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 21:44:56,468 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,468 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 21:44:56,479 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,479 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-17 21:44:56,479 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,479 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-17 21:44:56,480 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,480 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-17 21:44:56,480 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,480 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-17 21:44:56,480 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,480 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-17 21:44:56,480 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,480 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:44:56,480 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:44:56,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:44:56,480 INFO L85 PathProgramCache]: Analyzing trace with hash 425290188, now seen corresponding path program 1 times [2024-12-17 21:44:56,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 21:44:56,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274843074] [2024-12-17 21:44:56,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:44:56,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:56,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:56,483 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 21:44:56,484 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 21:44:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:44:56,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 21:44:56,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:44:56,660 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 21:44:56,660 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 21:44:56,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 21:44:56,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274843074] [2024-12-17 21:44:56,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274843074] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:44:56,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:44:56,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 21:44:56,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372644435] [2024-12-17 21:44:56,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:44:56,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 21:44:56,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 21:44:56,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:44:56,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:44:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,661 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:44:56,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 21:44:56,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:56,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:56,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:56,780 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 21:44:56,974 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 21:44:56,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:44:56,974 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:44:56,974 INFO L139 ounterexampleChecker]: Examining path program with hash 590368473, occurence #3 [2024-12-17 21:44:56,974 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:44:56,975 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 21:44:56,975 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 21:44:56,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 21:44:56,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-17 21:44:56,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-17 21:44:56,975 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-12-17 21:44:56,975 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:56,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-12-17 21:44:56,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:56,975 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:44:56,975 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:44:56,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:44:56,976 INFO L85 PathProgramCache]: Analyzing trace with hash -846671309, now seen corresponding path program 1 times [2024-12-17 21:44:56,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 21:44:56,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324481754] [2024-12-17 21:44:56,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:44:56,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:56,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:56,979 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 21:44:56,979 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 21:44:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:44:57,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 21:44:57,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:44:57,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:44:57,115 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 21:44:57,115 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 21:44:57,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324481754] [2024-12-17 21:44:57,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324481754] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 21:44:57,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 21:44:57,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 21:44:57,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422179082] [2024-12-17 21:44:57,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:44:57,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 21:44:57,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 21:44:57,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 21:44:57,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-17 21:44:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,117 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:44:57,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 21:44:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,235 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 21:44:57,432 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 21:44:57,433 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:44:57,433 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:44:57,433 INFO L139 ounterexampleChecker]: Examining path program with hash 590368473, occurence #4 [2024-12-17 21:44:57,433 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 21:44:57,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 21:44:57,433 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:57,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 21:44:57,433 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:57,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 21:44:57,433 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:57,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 21:44:57,433 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:57,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 21:44:57,433 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:57,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-17 21:44:57,434 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:57,434 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-17 21:44:57,434 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 21:44:57,434 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-17 21:44:57,434 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 21:44:57,434 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 21:44:57,434 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:44:57,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:44:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1079690968, now seen corresponding path program 1 times [2024-12-17 21:44:57,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 21:44:57,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432904070] [2024-12-17 21:44:57,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 21:44:57,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:57,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:57,436 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 21:44:57,437 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 21:44:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 21:44:57,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-17 21:44:57,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 21:44:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 21:44:57,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 21:44:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 21:44:57,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-17 21:44:57,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432904070] [2024-12-17 21:44:57,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432904070] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-17 21:44:57,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-17 21:44:57,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-17 21:44:57,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046300327] [2024-12-17 21:44:57,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 21:44:57,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 21:44:57,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-17 21:44:57,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 21:44:57,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-17 21:44:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,739 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 21:44:57,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 21:44:57,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 21:44:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 21:44:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 21:44:57,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-17 21:44:58,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:58,097 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 21:44:58,098 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 21:44:58,098 INFO L139 ounterexampleChecker]: Examining path program with hash 469239398, occurence #1 [2024-12-17 21:44:58,098 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 21:44:58,098 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 21:44:58,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 21:44:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash -718554250, now seen corresponding path program 2 times [2024-12-17 21:44:58,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-17 21:44:58,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663847778] [2024-12-17 21:44:58,099 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 21:44:58,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 21:44:58,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 21:44:58,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 21:44:58,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Killed by 15