./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/fib_safe-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread/fib_safe-10.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 4d0c5b9355e30d5caa4f24695b56ab4fa8d9d282078ca8b4e24a8f9b8920e450 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 18:27:08,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 18:27:08,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 18:27:08,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 18:27:08,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 18:27:08,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 18:27:08,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 18:27:08,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 18:27:08,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 18:27:08,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 18:27:08,193 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 18:27:08,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 18:27:08,194 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 18:27:08,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 18:27:08,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 18:27:08,194 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 18:27:08,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 18:27:08,194 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 18:27:08,195 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 18:27:08,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:27:08,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:27:08,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:27:08,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:08,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 18:27:08,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:27:08,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:27:08,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:08,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 18:27:08,197 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 18:27:08,197 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/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 -> 4d0c5b9355e30d5caa4f24695b56ab4fa8d9d282078ca8b4e24a8f9b8920e450 [2025-04-24 18:27:08,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 18:27:08,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 18:27:08,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 18:27:08,437 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 18:27:08,437 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 18:27:08,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/fib_safe-10.i [2025-04-24 18:27:09,728 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3868ad546/8b54262254ea458b8e4c8bfb4dd73dc6/FLAG21041599a [2025-04-24 18:27:09,957 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 18:27:09,957 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_safe-10.i [2025-04-24 18:27:09,967 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3868ad546/8b54262254ea458b8e4c8bfb4dd73dc6/FLAG21041599a [2025-04-24 18:27:10,728 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3868ad546/8b54262254ea458b8e4c8bfb4dd73dc6 [2025-04-24 18:27:10,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 18:27:10,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 18:27:10,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 18:27:10,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 18:27:10,734 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 18:27:10,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:27:10" (1/1) ... [2025-04-24 18:27:10,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fdf6d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:10, skipping insertion in model container [2025-04-24 18:27:10,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:27:10" (1/1) ... [2025-04-24 18:27:10,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 18:27:10,990 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_safe-10.i[30241,30254] [2025-04-24 18:27:11,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:27:11,025 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 18:27:11,060 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_safe-10.i[30241,30254] [2025-04-24 18:27:11,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:27:11,093 INFO L204 MainTranslator]: Completed translation [2025-04-24 18:27:11,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11 WrapperNode [2025-04-24 18:27:11,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 18:27:11,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 18:27:11,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 18:27:11,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 18:27:11,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,130 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2025-04-24 18:27:11,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 18:27:11,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 18:27:11,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 18:27:11,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 18:27:11,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,143 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 18:27:11,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 18:27:11,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 18:27:11,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 18:27:11,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:11,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:11,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 18:27:11,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 18:27:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-04-24 18:27:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-04-24 18:27:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-04-24 18:27:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-04-24 18:27:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 18:27:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 18:27:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 18:27:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 18:27:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 18:27:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 18:27:11,209 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 18:27:11,311 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 18:27:11,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 18:27:11,424 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 18:27:11,424 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 18:27:11,500 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 18:27:11,501 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 18:27:11,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:27:11 BoogieIcfgContainer [2025-04-24 18:27:11,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 18:27:11,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 18:27:11,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 18:27:11,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 18:27:11,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 06:27:10" (1/3) ... [2025-04-24 18:27:11,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4b1900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 06:27:11, skipping insertion in model container [2025-04-24 18:27:11,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (2/3) ... [2025-04-24 18:27:11,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4b1900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 06:27:11, skipping insertion in model container [2025-04-24 18:27:11,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:27:11" (3/3) ... [2025-04-24 18:27:11,510 INFO L128 eAbstractionObserver]: Analyzing ICFG fib_safe-10.i [2025-04-24 18:27:11,519 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 18:27:11,522 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fib_safe-10.i that has 3 procedures, 26 locations, 27 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-24 18:27:11,522 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 18:27:11,556 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 18:27:11,589 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:27:11,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 18:27:11,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:11,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 18:27:11,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 18:27:11,649 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 18:27:11,662 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 18:27:11,670 INFO L340 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;@52428e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:27:11,671 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 18:27:11,903 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:11,903 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:11,904 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #1 [2025-04-24 18:27:11,904 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:11,904 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:11,907 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:11,907 INFO L85 PathProgramCache]: Analyzing trace with hash -585029914, now seen corresponding path program 1 times [2025-04-24 18:27:11,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:11,913 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044989481] [2025-04-24 18:27:11,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:11,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-24 18:27:12,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-24 18:27:12,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:12,166 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044989481] [2025-04-24 18:27:12,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044989481] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:12,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 18:27:12,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 18:27:12,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379357245] [2025-04-24 18:27:12,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:12,171 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 18:27:12,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:12,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 18:27:12,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 18:27:12,184 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,185 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:12,186 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 18:27:12,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,235 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,235 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 18:27:12,235 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:12,235 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,236 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #2 [2025-04-24 18:27:12,236 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:12,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:12,236 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,237 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:12,237 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,237 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:12,249 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,249 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:12,249 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-24 18:27:12,250 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 18:27:12,250 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,250 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:12,250 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,250 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1099917870, now seen corresponding path program 1 times [2025-04-24 18:27:12,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,251 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283803758] [2025-04-24 18:27:12,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 18:27:12,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 18:27:12,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:12,339 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283803758] [2025-04-24 18:27:12,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283803758] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:12,339 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114071244] [2025-04-24 18:27:12,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:12,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:12,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:27:12,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 18:27:12,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 18:27:12,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 18:27:12,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-24 18:27:12,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:12,435 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,435 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114071244] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:12,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:12,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-04-24 18:27:12,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518983078] [2025-04-24 18:27:12,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:12,467 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 18:27:12,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:12,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 18:27:12,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-24 18:27:12,469 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,469 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:12,469 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2025-04-24 18:27:12,469 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,469 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:12,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:12,736 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-04-24 18:27:12,737 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:12,737 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,737 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #3 [2025-04-24 18:27:12,737 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:12,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:12,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:12,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:12,737 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:12,737 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-04-24 18:27:12,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 18:27:12,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,737 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:12,738 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,738 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1414699802, now seen corresponding path program 2 times [2025-04-24 18:27:12,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,738 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11303060] [2025-04-24 18:27:12,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,752 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-04-24 18:27:12,772 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 18:27:12,775 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:12,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:12,887 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11303060] [2025-04-24 18:27:12,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11303060] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:12,887 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72167174] [2025-04-24 18:27:12,887 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:12,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:12,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:12,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:27:12,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 18:27:12,928 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-04-24 18:27:12,966 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 18:27:12,966 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:12,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-24 18:27:12,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:13,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:13,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72167174] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:13,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:13,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-04-24 18:27:13,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293730293] [2025-04-24 18:27:13,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:13,100 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 18:27:13,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:13,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 18:27:13,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-04-24 18:27:13,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:13,103 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:13,103 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 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) [2025-04-24 18:27:13,103 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:13,103 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:13,103 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:13,218 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:13,218 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:13,221 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:13,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:13,421 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:13,422 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:13,422 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:13,422 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #4 [2025-04-24 18:27:13,422 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:13,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:13,422 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:13,422 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:13,422 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:13,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:13,422 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:13,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-04-24 18:27:13,422 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 18:27:13,423 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,423 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:13,423 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:13,423 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:13,423 INFO L85 PathProgramCache]: Analyzing trace with hash 286974438, now seen corresponding path program 3 times [2025-04-24 18:27:13,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:13,423 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253471693] [2025-04-24 18:27:13,423 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:13,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:13,432 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 91 statements into 11 equivalence classes. [2025-04-24 18:27:13,534 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 91 of 91 statements. [2025-04-24 18:27:13,534 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:27:13,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:13,821 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 357 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:13,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:13,822 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253471693] [2025-04-24 18:27:13,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253471693] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:13,822 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438124201] [2025-04-24 18:27:13,822 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:13,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:13,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:13,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:27:13,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 18:27:13,881 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 91 statements into 11 equivalence classes. [2025-04-24 18:27:13,918 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 91 of 91 statements. [2025-04-24 18:27:13,918 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:27:13,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:13,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 18:27:13,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:14,022 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 18:27:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438124201] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:14,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 18:27:14,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2025-04-24 18:27:14,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683428469] [2025-04-24 18:27:14,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:14,022 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 18:27:14,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:14,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 18:27:14,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2025-04-24 18:27:14,023 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,023 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:14,023 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 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) [2025-04-24 18:27:14,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,169 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,169 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,169 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,170 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:14,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:14,370 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:14,370 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:14,371 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:14,371 INFO L139 ounterexampleChecker]: Examining path program with hash -1185224730, occurence #1 [2025-04-24 18:27:14,371 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:14,371 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:14,371 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:14,371 INFO L85 PathProgramCache]: Analyzing trace with hash -51937370, now seen corresponding path program 1 times [2025-04-24 18:27:14,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:14,372 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91725236] [2025-04-24 18:27:14,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:14,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:14,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-04-24 18:27:14,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-04-24 18:27:14,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:14,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:14,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:14,614 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91725236] [2025-04-24 18:27:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91725236] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:14,614 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225246654] [2025-04-24 18:27:14,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:14,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:14,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:14,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:27:14,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 18:27:14,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-04-24 18:27:14,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-04-24 18:27:14,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:14,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:14,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 18:27:14,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:14,872 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 18:27:14,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225246654] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:14,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 18:27:14,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2025-04-24 18:27:14,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028526452] [2025-04-24 18:27:14,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:14,872 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 18:27:14,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:14,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 18:27:14,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-04-24 18:27:14,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,873 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:14,873 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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) [2025-04-24 18:27:14,874 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,874 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,874 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,874 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:14,874 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,013 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,013 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:15,013 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:15,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:15,213 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:15,214 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:15,214 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:15,214 INFO L139 ounterexampleChecker]: Examining path program with hash 1154536077, occurence #1 [2025-04-24 18:27:15,214 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:15,214 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:15,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:15,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1473640838, now seen corresponding path program 1 times [2025-04-24 18:27:15,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:15,214 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630246870] [2025-04-24 18:27:15,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:15,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-04-24 18:27:15,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-04-24 18:27:15,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:15,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:15,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:15,417 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630246870] [2025-04-24 18:27:15,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630246870] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:15,417 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429093333] [2025-04-24 18:27:15,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:15,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:15,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:27:15,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-24 18:27:15,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-04-24 18:27:15,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-04-24 18:27:15,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:15,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:15,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 18:27:15,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:15,577 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:15,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429093333] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:15,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:15,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-04-24 18:27:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687814160] [2025-04-24 18:27:15,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:15,812 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-04-24 18:27:15,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:15,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-04-24 18:27:15,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-04-24 18:27:15,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,814 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:15,814 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.76) internal successors, (169), 25 states have internal predecessors, (169), 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) [2025-04-24 18:27:15,815 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,815 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,815 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,815 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:15,815 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:15,816 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,916 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,916 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,916 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,916 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:15,916 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:15,916 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:15,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:16,117 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:16,117 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:16,117 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:16,117 INFO L139 ounterexampleChecker]: Examining path program with hash 1154536077, occurence #2 [2025-04-24 18:27:16,117 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:16,117 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:16,117 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,118 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:16,118 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,118 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:16,118 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:16,118 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:16,118 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:16,118 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2025-04-24 18:27:16,118 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,118 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-04-24 18:27:16,118 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,118 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 97 [2025-04-24 18:27:16,118 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,118 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:16,118 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:16,118 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:16,118 INFO L85 PathProgramCache]: Analyzing trace with hash 595682118, now seen corresponding path program 2 times [2025-04-24 18:27:16,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:16,119 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285756323] [2025-04-24 18:27:16,119 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:16,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:16,128 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 99 statements into 2 equivalence classes. [2025-04-24 18:27:16,151 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:27:16,152 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:16,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:18,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:18,768 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285756323] [2025-04-24 18:27:18,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285756323] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:18,768 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908154600] [2025-04-24 18:27:18,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:18,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:18,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:18,770 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:27:18,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-24 18:27:18,812 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 99 statements into 2 equivalence classes. [2025-04-24 18:27:18,851 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:27:18,851 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:18,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:18,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjuncts are in the unsatisfiable core [2025-04-24 18:27:18,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 55 proven. 348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:21,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:25,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908154600] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:25,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:25,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2025-04-24 18:27:25,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175505378] [2025-04-24 18:27:25,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:25,269 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2025-04-24 18:27:25,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:25,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2025-04-24 18:27:25,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1892, Invalid=18988, Unknown=0, NotChecked=0, Total=20880 [2025-04-24 18:27:25,276 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:25,276 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:25,277 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2025-04-24 18:27:25,277 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:25,277 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:25,277 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:25,277 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:25,277 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:25,277 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:25,277 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:54,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:54,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:54,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:54,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:54,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:27:54,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:54,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2025-04-24 18:27:54,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:54,335 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-04-24 18:27:54,335 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:27:54,336 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:54,336 INFO L139 ounterexampleChecker]: Examining path program with hash -1486942455, occurence #1 [2025-04-24 18:27:54,336 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:54,336 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:54,336 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:54,336 INFO L85 PathProgramCache]: Analyzing trace with hash 937690224, now seen corresponding path program 3 times [2025-04-24 18:27:54,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:54,336 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031531556] [2025-04-24 18:27:54,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:54,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:54,342 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 99 statements into 10 equivalence classes. [2025-04-24 18:27:54,396 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:27:54,396 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-04-24 18:27:54,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:56,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:56,461 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031531556] [2025-04-24 18:27:56,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031531556] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:56,461 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835650676] [2025-04-24 18:27:56,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:56,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:56,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:56,463 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:27:56,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-24 18:27:56,512 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 99 statements into 10 equivalence classes. [2025-04-24 18:27:56,544 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:27:56,544 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-04-24 18:27:56,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:56,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjuncts are in the unsatisfiable core [2025-04-24 18:27:56,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 45 proven. 292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:59,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:28:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835650676] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:28:02,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:28:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 145 [2025-04-24 18:28:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538031352] [2025-04-24 18:28:02,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:28:02,576 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2025-04-24 18:28:02,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:28:02,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2025-04-24 18:28:02,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1837, Invalid=19333, Unknown=0, NotChecked=0, Total=21170 [2025-04-24 18:28:02,580 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:02,580 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:28:02,581 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 2.0205479452054793) internal successors, (295), 145 states have internal predecessors, (295), 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) [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2025-04-24 18:28:02,581 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:57,428 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:57,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:57,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:57,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:28:57,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:28:57,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:28:57,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 213 states. [2025-04-24 18:28:57,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2025-04-24 18:28:57,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-24 18:28:57,630 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:28:57,630 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:28:57,630 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:28:57,632 INFO L139 ounterexampleChecker]: Examining path program with hash 1202883987, occurence #1 [2025-04-24 18:28:57,632 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:28:57,632 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:28:57,632 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:28:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash -329573562, now seen corresponding path program 4 times [2025-04-24 18:28:57,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:28:57,632 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936506460] [2025-04-24 18:28:57,632 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:28:57,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:28:57,639 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 99 statements into 2 equivalence classes. [2025-04-24 18:28:57,656 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:28:57,658 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:28:57,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:59,767 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:59,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:28:59,767 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936506460] [2025-04-24 18:28:59,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936506460] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:28:59,767 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236708546] [2025-04-24 18:28:59,767 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:28:59,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:28:59,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:28:59,769 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:28:59,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-04-24 18:28:59,819 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 99 statements into 2 equivalence classes. [2025-04-24 18:28:59,852 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:28:59,852 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:28:59,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:59,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjuncts are in the unsatisfiable core [2025-04-24 18:28:59,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:29:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 55 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:02,496 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:29:06,018 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:06,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236708546] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:29:06,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:29:06,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 145 [2025-04-24 18:29:06,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129384100] [2025-04-24 18:29:06,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:29:06,018 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2025-04-24 18:29:06,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:29:06,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2025-04-24 18:29:06,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1808, Invalid=19362, Unknown=0, NotChecked=0, Total=21170 [2025-04-24 18:29:06,022 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:29:06,022 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:29:06,023 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 2.0205479452054793) internal successors, (295), 145 states have internal predecessors, (295), 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) [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 213 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2025-04-24 18:29:06,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2025-04-24 18:29:53,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2025-04-24 18:29:53,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-04-24 18:29:53,546 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:29:53,546 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:29:53,546 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:29:53,546 INFO L139 ounterexampleChecker]: Examining path program with hash -2014197554, occurence #1 [2025-04-24 18:29:53,546 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:29:53,546 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:29:53,546 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:29:53,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1823460166, now seen corresponding path program 5 times [2025-04-24 18:29:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:29:53,547 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619768082] [2025-04-24 18:29:53,547 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 18:29:53,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:29:53,552 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 99 statements into 10 equivalence classes. [2025-04-24 18:29:53,585 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:29:53,585 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-04-24 18:29:53,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:29:55,378 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:55,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:29:55,379 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619768082] [2025-04-24 18:29:55,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619768082] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:29:55,379 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654242814] [2025-04-24 18:29:55,379 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 18:29:55,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:29:55,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:29:55,381 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:29:55,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-04-24 18:29:55,419 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 99 statements into 10 equivalence classes. [2025-04-24 18:29:55,449 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:29:55,449 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-04-24 18:29:55,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:29:55,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjuncts are in the unsatisfiable core [2025-04-24 18:29:55,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:29:58,077 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 45 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:58,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:30:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:30:01,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654242814] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:30:01,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:30:01,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2025-04-24 18:30:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256766937] [2025-04-24 18:30:01,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:30:01,570 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2025-04-24 18:30:01,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:30:01,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2025-04-24 18:30:01,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1904, Invalid=18976, Unknown=0, NotChecked=0, Total=20880 [2025-04-24 18:30:01,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:30:01,574 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:30:01,578 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 233 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2025-04-24 18:30:01,578 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2025-04-24 18:31:43,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2025-04-24 18:31:43,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-04-24 18:31:43,649 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-04-24 18:31:43,649 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:31:43,649 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:31:43,649 INFO L139 ounterexampleChecker]: Examining path program with hash -1486942455, occurence #2 [2025-04-24 18:31:43,649 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:31:43,649 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:31:43,649 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:43,649 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:31:43,649 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:43,649 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:31:43,649 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:31:43,649 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:31:43,649 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:31:43,650 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2025-04-24 18:31:43,650 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:43,650 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-04-24 18:31:43,650 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:43,650 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 97 [2025-04-24 18:31:43,650 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:43,650 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:31:43,650 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:31:43,650 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:31:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash -524983208, now seen corresponding path program 6 times [2025-04-24 18:31:43,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:31:43,650 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428322177] [2025-04-24 18:31:43,650 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 18:31:43,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:31:43,655 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 99 statements into 10 equivalence classes. [2025-04-24 18:31:43,695 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:31:43,696 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-04-24 18:31:43,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:31:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:31:45,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:31:45,317 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428322177] [2025-04-24 18:31:45,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428322177] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:31:45,318 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240275427] [2025-04-24 18:31:45,318 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 18:31:45,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:31:45,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:31:45,319 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:31:45,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-04-24 18:31:45,356 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 99 statements into 10 equivalence classes. [2025-04-24 18:31:45,388 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:31:45,388 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-04-24 18:31:45,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:31:45,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjuncts are in the unsatisfiable core [2025-04-24 18:31:45,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:31:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 45 proven. 292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:31:47,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:31:51,238 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:31:51,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240275427] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:31:51,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:31:51,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 145 [2025-04-24 18:31:51,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312565413] [2025-04-24 18:31:51,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:31:51,239 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2025-04-24 18:31:51,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:31:51,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2025-04-24 18:31:51,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1849, Invalid=19321, Unknown=0, NotChecked=0, Total=21170 [2025-04-24 18:31:51,241 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:31:51,241 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:31:51,241 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 2.0205479452054793) internal successors, (295), 145 states have internal predecessors, (295), 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) [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2025-04-24 18:31:51,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 345 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 372 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2025-04-24 18:35:08,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2025-04-24 18:35:08,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-04-24 18:35:08,800 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:35:08,801 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:35:08,801 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:35:08,801 INFO L139 ounterexampleChecker]: Examining path program with hash 1202883987, occurence #2 [2025-04-24 18:35:08,801 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:35:08,801 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:35:08,801 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:08,801 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:35:08,801 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:08,801 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:35:08,801 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:35:08,801 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:35:08,801 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:35:08,801 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 18:35:08,808 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:35:08,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1572079732, now seen corresponding path program 1 times [2025-04-24 18:35:08,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 18:35:08,809 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502609864] [2025-04-24 18:35:08,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:35:08,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:35:08,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-04-24 18:35:08,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-04-24 18:35:08,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:35:08,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 18:35:08,817 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 18:35:08,817 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 18:35:08,817 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 75 is hopeless, skipping. [2025-04-24 18:35:08,817 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2025-04-24 18:35:08,817 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:08,817 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-04-24 18:35:08,817 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:08,817 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 97 [2025-04-24 18:35:08,817 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:08,817 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:35:08,817 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:35:08,817 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:35:08,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2076560326, now seen corresponding path program 7 times [2025-04-24 18:35:08,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:35:08,817 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548419616] [2025-04-24 18:35:08,817 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 18:35:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:35:08,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-04-24 18:35:08,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:35:08,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:35:08,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:35:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:35:10,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:35:10,487 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548419616] [2025-04-24 18:35:10,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548419616] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:35:10,487 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939636897] [2025-04-24 18:35:10,487 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 18:35:10,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:35:10,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:35:10,489 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:35:10,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-04-24 18:35:10,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-04-24 18:35:10,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-04-24 18:35:10,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:35:10,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:35:10,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjuncts are in the unsatisfiable core [2025-04-24 18:35:10,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:35:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 55 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:35:13,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:35:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:35:16,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939636897] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:35:16,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:35:16,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2025-04-24 18:35:16,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123292605] [2025-04-24 18:35:16,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:35:16,392 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2025-04-24 18:35:16,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:35:16,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2025-04-24 18:35:16,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1912, Invalid=18968, Unknown=0, NotChecked=0, Total=20880 [2025-04-24 18:35:16,394 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:35:16,394 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:35:16,394 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 345 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 372 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2025-04-24 18:35:16,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.