./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/fib_safe-7.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-7.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 2a12d5b905fa07b94a851888f481630fccc5d15913fb6b7efa54c908526d1783 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 18:27:08,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 18:27:08,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 18:27:08,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 18:27:08,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 18:27:08,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 18:27:08,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 18:27:08,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 18:27:08,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 18:27:08,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 18:27:08,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 18:27:08,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 18:27:08,265 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:08,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:08,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 18:27:08,265 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 18:27:08,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 18:27:08,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 18:27:08,266 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 18:27:08,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 18:27:08,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 18:27:08,266 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 18:27:08,266 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 18:27:08,266 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 -> 2a12d5b905fa07b94a851888f481630fccc5d15913fb6b7efa54c908526d1783 [2025-04-24 18:27:08,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 18:27:08,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 18:27:08,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 18:27:08,502 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 18:27:08,502 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 18:27:08,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/fib_safe-7.i [2025-04-24 18:27:09,798 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1c42a87f2/1602caeb26ad4e2981b96a30b89c57c9/FLAG95715eb6a [2025-04-24 18:27:10,033 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 18:27:10,034 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_safe-7.i [2025-04-24 18:27:10,041 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1c42a87f2/1602caeb26ad4e2981b96a30b89c57c9/FLAG95715eb6a [2025-04-24 18:27:10,848 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1c42a87f2/1602caeb26ad4e2981b96a30b89c57c9 [2025-04-24 18:27:10,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 18:27:10,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 18:27:10,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 18:27:10,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 18:27:10,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 18:27:10,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:27:10" (1/1) ... [2025-04-24 18:27:10,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8009ff 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 18:27:10,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:27:10" (1/1) ... [2025-04-24 18:27:10,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 18:27:11,150 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-7.i[30241,30254] [2025-04-24 18:27:11,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:27:11,178 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 18:27:11,236 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-7.i[30241,30254] [2025-04-24 18:27:11,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:27:11,275 INFO L204 MainTranslator]: Completed translation [2025-04-24 18:27:11,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11 WrapperNode [2025-04-24 18:27:11,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 18:27:11,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 18:27:11,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 18:27:11,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 18:27:11,281 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 18:27:11,295 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 18:27:11,313 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2025-04-24 18:27:11,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 18:27:11,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 18:27:11,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 18:27:11,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 18:27:11,319 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 18:27:11,319 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 18:27:11,321 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 18:27:11,321 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 18:27:11,324 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 18:27:11,325 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 18:27:11,327 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 18:27:11,328 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 18:27:11,329 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 18:27:11,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 18:27:11,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 18:27:11,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 18:27:11,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 18:27:11,337 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 18:27:11,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:11,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:11,358 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 18:27:11,359 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 18:27:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-04-24 18:27:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-04-24 18:27:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-04-24 18:27:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-04-24 18:27:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 18:27:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 18:27:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 18:27:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 18:27:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 18:27:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 18:27:11,376 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 18:27:11,465 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 18:27:11,466 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 18:27:11,560 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 18:27:11,560 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 18:27:11,635 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 18:27:11,636 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 18:27:11,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:27:11 BoogieIcfgContainer [2025-04-24 18:27:11,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 18:27:11,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 18:27:11,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 18:27:11,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 18:27:11,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 06:27:10" (1/3) ... [2025-04-24 18:27:11,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6d6dab 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 18:27:11,642 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 18:27:11,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6d6dab 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 18:27:11,643 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 18:27:11,644 INFO L128 eAbstractionObserver]: Analyzing ICFG fib_safe-7.i [2025-04-24 18:27:11,654 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 18:27:11,655 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fib_safe-7.i that has 3 procedures, 26 locations, 27 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-24 18:27:11,656 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 18:27:11,690 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 18:27:11,727 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:27:11,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 18:27:11,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:11,732 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 18:27:11,733 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 18:27:11,789 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 18:27:11,803 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 18:27:11,809 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;@48a5c887, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:27:11,809 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 18:27:12,049 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 18:27:12,049 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,049 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #1 [2025-04-24 18:27:12,049 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:12,049 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,053 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,053 INFO L85 PathProgramCache]: Analyzing trace with hash -585029914, now seen corresponding path program 1 times [2025-04-24 18:27:12,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,059 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276253704] [2025-04-24 18:27:12,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-24 18:27:12,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-24 18:27:12,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,263 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 18:27:12,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:12,263 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276253704] [2025-04-24 18:27:12,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276253704] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:12,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 18:27:12,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 18:27:12,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700424607] [2025-04-24 18:27:12,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:12,269 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 18:27:12,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:12,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 18:27:12,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 18:27:12,283 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,284 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:12,285 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 18:27:12,285 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,323 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 18:27:12,323 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 18:27:12,323 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,323 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #2 [2025-04-24 18:27:12,323 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:12,323 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:12,324 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,324 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:12,324 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,324 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:12,336 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:12,336 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-24 18:27:12,337 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 18:27:12,337 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,337 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:12,337 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,337 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1099917870, now seen corresponding path program 1 times [2025-04-24 18:27:12,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,338 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676332389] [2025-04-24 18:27:12,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 18:27:12,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 18:27:12,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,434 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 18:27:12,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:12,434 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676332389] [2025-04-24 18:27:12,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676332389] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:12,434 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461725856] [2025-04-24 18:27:12,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:12,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:12,437 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 18:27:12,439 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 18:27:12,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 18:27:12,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 18:27:12,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-24 18:27:12,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:12,536 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 18:27:12,536 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:12,564 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 18:27:12,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461725856] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:12,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:12,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-04-24 18:27:12,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085665639] [2025-04-24 18:27:12,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:12,566 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 18:27:12,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:12,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 18:27:12,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-24 18:27:12,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,569 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:12,569 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 18:27:12,569 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,569 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,650 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:12,657 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 18:27:12,854 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 18:27:12,855 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 18:27:12,855 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,855 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #3 [2025-04-24 18:27:12,855 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:12,855 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:12,855 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,855 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:12,855 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,856 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:12,856 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,856 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:12,856 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,856 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-04-24 18:27:12,857 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,857 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 18:27:12,857 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,857 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:12,857 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,858 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1414699802, now seen corresponding path program 2 times [2025-04-24 18:27:12,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,858 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224977319] [2025-04-24 18:27:12,858 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:12,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,866 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-04-24 18:27:12,884 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 18:27:12,884 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:12,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:13,061 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 18:27:13,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:13,062 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224977319] [2025-04-24 18:27:13,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224977319] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:13,062 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108833279] [2025-04-24 18:27:13,062 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:13,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:13,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:13,064 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 18:27:13,066 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 18:27:13,114 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-04-24 18:27:13,139 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 18:27:13,139 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:13,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:13,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-24 18:27:13,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:13,197 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 18:27:13,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:13,273 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 18:27:13,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108833279] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:13,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:13,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-04-24 18:27:13,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131931643] [2025-04-24 18:27:13,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:13,274 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 18:27:13,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:13,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 18:27:13,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-04-24 18:27:13,275 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:13,275 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:13,275 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 18:27:13,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:13,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:13,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:13,366 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:13,366 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:13,366 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:13,372 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 18:27:13,571 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 18:27:13,571 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 18:27:13,571 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:13,571 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #4 [2025-04-24 18:27:13,571 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:13,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:13,571 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:13,571 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:13,572 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:13,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:13,572 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:13,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-04-24 18:27:13,572 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 18:27:13,572 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,572 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:13,572 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:13,572 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:13,572 INFO L85 PathProgramCache]: Analyzing trace with hash 286974438, now seen corresponding path program 3 times [2025-04-24 18:27:13,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:13,572 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672442643] [2025-04-24 18:27:13,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:13,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:13,581 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 91 statements into 11 equivalence classes. [2025-04-24 18:27:13,685 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 91 of 91 statements. [2025-04-24 18:27:13,686 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:27:13,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:13,914 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672442643] [2025-04-24 18:27:13,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672442643] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:13,914 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234819999] [2025-04-24 18:27:13,915 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:13,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:13,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:13,916 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 18:27:13,918 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 18:27:13,974 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 91 statements into 11 equivalence classes. [2025-04-24 18:27:14,012 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 91 of 91 statements. [2025-04-24 18:27:14,012 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:27:14,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:14,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 18:27:14,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:14,220 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 18:27:14,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 18:27:14,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234819999] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:14,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 18:27:14,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2025-04-24 18:27:14,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370219246] [2025-04-24 18:27:14,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:14,221 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 18:27:14,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:14,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 18:27:14,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-04-24 18:27:14,222 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,222 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:14,222 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 18:27:14,222 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,222 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,222 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,222 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,362 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,362 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,362 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,362 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:14,368 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 18:27:14,566 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 18:27:14,566 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 18:27:14,566 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:14,566 INFO L139 ounterexampleChecker]: Examining path program with hash -851591519, occurence #1 [2025-04-24 18:27:14,566 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:14,566 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:14,567 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:14,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1035882749, now seen corresponding path program 1 times [2025-04-24 18:27:14,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:14,567 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224377442] [2025-04-24 18:27:14,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:14,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:14,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-04-24 18:27:14,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-04-24 18:27:14,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:14,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:14,785 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:14,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:14,785 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224377442] [2025-04-24 18:27:14,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224377442] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:14,785 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779379419] [2025-04-24 18:27:14,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:14,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:14,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:14,792 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 18:27:14,795 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 18:27:14,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-04-24 18:27:14,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-04-24 18:27:14,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:14,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:14,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-24 18:27:14,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-04-24 18:27:14,981 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 18:27:14,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779379419] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:14,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 18:27:14,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2025-04-24 18:27:14,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562174491] [2025-04-24 18:27:14,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:14,982 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-24 18:27:14,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:14,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-24 18:27:14,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2025-04-24 18:27:14,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,984 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:14,984 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 18:27:14,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:14,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:15,078 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:15,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-24 18:27:15,278 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 18:27:15,278 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 18:27:15,278 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:15,279 INFO L139 ounterexampleChecker]: Examining path program with hash 1723204611, occurence #1 [2025-04-24 18:27:15,279 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:15,279 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:15,279 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash 317542987, now seen corresponding path program 1 times [2025-04-24 18:27:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:15,279 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372910239] [2025-04-24 18:27:15,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:15,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:15,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-04-24 18:27:15,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-04-24 18:27:15,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:15,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:15,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:15,447 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372910239] [2025-04-24 18:27:15,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372910239] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:15,447 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763798977] [2025-04-24 18:27:15,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:15,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:15,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:15,451 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 18:27:15,452 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 18:27:15,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-04-24 18:27:15,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-04-24 18:27:15,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:15,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:15,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 18:27:15,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:15,592 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:15,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:15,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763798977] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:15,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:15,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 19 [2025-04-24 18:27:15,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963606452] [2025-04-24 18:27:15,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:15,752 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-24 18:27:15,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:15,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-24 18:27:15,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2025-04-24 18:27:15,753 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,754 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:15,754 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.105263157894737) internal successors, (116), 19 states have internal predecessors, (116), 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 18:27:15,754 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,754 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,754 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,754 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:15,754 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:15,754 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,832 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,832 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,832 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:15,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:15,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:27:15,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-24 18:27:16,033 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 18:27:16,034 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 18:27:16,034 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:16,034 INFO L139 ounterexampleChecker]: Examining path program with hash 1723204611, occurence #2 [2025-04-24 18:27:16,034 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:16,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:16,034 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:16,034 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:16,034 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:16,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:16,034 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:16,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 18:27:16,034 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 18:27:16,034 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,035 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 18:27:16,035 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:16,035 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:16,035 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:16,035 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:16,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1366143851, now seen corresponding path program 2 times [2025-04-24 18:27:16,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:16,035 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374264869] [2025-04-24 18:27:16,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:16,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:16,041 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:27:16,062 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:27:16,063 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:16,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:17,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:17,964 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374264869] [2025-04-24 18:27:17,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374264869] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:17,964 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314703021] [2025-04-24 18:27:17,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:17,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:17,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:17,966 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 18:27:17,968 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 18:27:18,006 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:27:18,034 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:27:18,034 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:18,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:18,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:27:18,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 28 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:20,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:22,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314703021] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:22,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:22,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 108 [2025-04-24 18:27:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687351740] [2025-04-24 18:27:22,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:22,546 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2025-04-24 18:27:22,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:22,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2025-04-24 18:27:22,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1124, Invalid=10648, Unknown=0, NotChecked=0, Total=11772 [2025-04-24 18:27:22,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:22,551 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:22,551 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 2.0458715596330275) internal successors, (223), 108 states have internal predecessors, (223), 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 18:27:22,551 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:22,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:22,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:22,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:22,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:22,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:27:22,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:38,598 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:38,598 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:38,598 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:38,598 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:38,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:38,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:27:38,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2025-04-24 18:27:38,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-24 18:27:38,804 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 18:27:38,804 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 18:27:38,804 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:38,804 INFO L139 ounterexampleChecker]: Examining path program with hash -918273921, occurence #1 [2025-04-24 18:27:38,804 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:38,804 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:38,804 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash 935375489, now seen corresponding path program 3 times [2025-04-24 18:27:38,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:38,805 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173664408] [2025-04-24 18:27:38,805 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:38,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:38,810 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 7 equivalence classes. [2025-04-24 18:27:38,841 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:27:38,841 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-04-24 18:27:38,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:40,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:40,122 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173664408] [2025-04-24 18:27:40,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173664408] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:40,122 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428370432] [2025-04-24 18:27:40,122 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:40,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:40,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:40,123 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 18:27:40,124 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 18:27:40,158 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 7 equivalence classes. [2025-04-24 18:27:40,182 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:27:40,183 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-04-24 18:27:40,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:40,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:27:40,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 21 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:41,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:43,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428370432] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:43,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:43,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 109 [2025-04-24 18:27:43,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226134987] [2025-04-24 18:27:43,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:43,767 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2025-04-24 18:27:43,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:43,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2025-04-24 18:27:43,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1090, Invalid=10900, Unknown=0, NotChecked=0, Total=11990 [2025-04-24 18:27:43,769 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:43,769 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:43,770 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.0272727272727273) internal successors, (223), 109 states have internal predecessors, (223), 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 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2025-04-24 18:27:43,770 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:11,458 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:11,459 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:11,459 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:11,459 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:11,459 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:11,459 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:28:11,459 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2025-04-24 18:28:11,459 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2025-04-24 18:28:11,465 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 18:28:11,660 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 18:28:11,660 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 18:28:11,660 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:28:11,660 INFO L139 ounterexampleChecker]: Examining path program with hash 2084095273, occurence #1 [2025-04-24 18:28:11,660 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:28:11,661 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:28:11,661 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:28:11,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1246823573, now seen corresponding path program 4 times [2025-04-24 18:28:11,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:28:11,661 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116969642] [2025-04-24 18:28:11,661 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:28:11,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:28:11,666 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:28:11,676 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:28:11,679 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:28:11,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:12,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:28:12,931 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116969642] [2025-04-24 18:28:12,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116969642] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:28:12,931 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272242963] [2025-04-24 18:28:12,931 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:28:12,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:28:12,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:28:12,933 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 18:28:12,934 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 18:28:12,967 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:28:12,997 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:28:12,998 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:28:12,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:13,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:28:13,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:28:14,703 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 28 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:14,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:28:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:16,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272242963] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:28:16,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:28:16,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 109 [2025-04-24 18:28:16,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207005488] [2025-04-24 18:28:16,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:28:16,771 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2025-04-24 18:28:16,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:28:16,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2025-04-24 18:28:16,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1061, Invalid=10929, Unknown=0, NotChecked=0, Total=11990 [2025-04-24 18:28:16,775 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:16,775 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:28:16,775 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.0272727272727273) internal successors, (223), 109 states have internal predecessors, (223), 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 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 168 states. [2025-04-24 18:28:16,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2025-04-24 18:28:16,776 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2025-04-24 18:28:41,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2025-04-24 18:28:41,788 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2025-04-24 18:28:41,794 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 18:28:41,988 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 18:28:41,988 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 18:28:41,988 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:28:41,989 INFO L139 ounterexampleChecker]: Examining path program with hash -1132986268, occurence #1 [2025-04-24 18:28:41,989 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:28:41,989 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:28:41,989 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:28:41,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1256699029, now seen corresponding path program 5 times [2025-04-24 18:28:41,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:28:41,989 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812201048] [2025-04-24 18:28:41,989 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 18:28:41,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:28:41,994 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 75 statements into 7 equivalence classes. [2025-04-24 18:28:42,011 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:28:42,012 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-04-24 18:28:42,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:43,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:28:43,125 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812201048] [2025-04-24 18:28:43,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812201048] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:28:43,126 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248455104] [2025-04-24 18:28:43,126 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 18:28:43,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:28:43,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:28:43,127 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 18:28:43,128 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 18:28:43,162 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 75 statements into 7 equivalence classes. [2025-04-24 18:28:43,184 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:28:43,185 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-04-24 18:28:43,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:43,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:28:43,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:28:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 21 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:44,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:28:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:46,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248455104] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:28:46,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:28:46,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 108 [2025-04-24 18:28:46,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504432575] [2025-04-24 18:28:46,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:28:46,757 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2025-04-24 18:28:46,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:28:46,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2025-04-24 18:28:46,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1139, Invalid=10633, Unknown=0, NotChecked=0, Total=11772 [2025-04-24 18:28:46,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:46,760 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:28:46,760 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 2.0458715596330275) internal successors, (223), 108 states have internal predecessors, (223), 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 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2025-04-24 18:28:46,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 160 states. [2025-04-24 18:28:46,761 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:29:38,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:29:38,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:29:38,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:29:38,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:29:38,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:29:38,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:29:38,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2025-04-24 18:29:38,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-04-24 18:29:38,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2025-04-24 18:29:38,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2025-04-24 18:29:38,098 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 18:29:38,283 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 18:29:38,283 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 18:29:38,283 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:29:38,283 INFO L139 ounterexampleChecker]: Examining path program with hash -918273921, occurence #2 [2025-04-24 18:29:38,283 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:29:38,283 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:29:38,284 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:29:38,284 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:29:38,284 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:29:38,284 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:29:38,284 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:29:38,284 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:29:38,284 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:29:38,284 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 18:29:38,284 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:29:38,284 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 18:29:38,284 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:29:38,284 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 18:29:38,284 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:29:38,284 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:29:38,284 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:29:38,284 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:29:38,284 INFO L85 PathProgramCache]: Analyzing trace with hash -966419559, now seen corresponding path program 6 times [2025-04-24 18:29:38,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:29:38,285 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484792771] [2025-04-24 18:29:38,285 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 18:29:38,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:29:38,291 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 75 statements into 7 equivalence classes. [2025-04-24 18:29:38,316 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:29:38,317 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-04-24 18:29:38,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:29:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:39,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:29:39,347 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484792771] [2025-04-24 18:29:39,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484792771] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:29:39,347 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479019210] [2025-04-24 18:29:39,347 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 18:29:39,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:29:39,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:29:39,349 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 18:29:39,350 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 18:29:39,383 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 75 statements into 7 equivalence classes. [2025-04-24 18:29:39,407 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:29:39,407 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-04-24 18:29:39,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:29:39,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:29:39,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:29:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 21 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:40,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:29:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:42,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479019210] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:29:42,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:29:42,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 109 [2025-04-24 18:29:42,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913853934] [2025-04-24 18:29:42,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:29:42,905 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2025-04-24 18:29:42,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:29:42,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2025-04-24 18:29:42,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1086, Invalid=10904, Unknown=0, NotChecked=0, Total=11990 [2025-04-24 18:29:42,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:29:42,908 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:29:42,908 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.0272727272727273) internal successors, (223), 109 states have internal predecessors, (223), 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 18:29:42,908 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:29:42,908 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:29:42,908 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:29:42,908 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:29:42,908 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:29:42,909 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:29:42,909 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2025-04-24 18:29:42,909 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2025-04-24 18:29:42,909 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2025-04-24 18:29:42,909 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2025-04-24 18:29:42,909 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 276 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2025-04-24 18:31:21,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2025-04-24 18:31:21,767 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 18:31:21,960 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 18:31:21,961 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 18:31:21,961 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:31:21,961 INFO L139 ounterexampleChecker]: Examining path program with hash 2084095273, occurence #2 [2025-04-24 18:31:21,961 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:31:21,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:31:21,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:21,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:31:21,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:21,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:31:21,961 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:31:21,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:31:21,961 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:31:21,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 18:31:21,967 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:31:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1033709524, now seen corresponding path program 1 times [2025-04-24 18:31:21,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 18:31:21,968 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612572865] [2025-04-24 18:31:21,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:31:21,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:31:21,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-24 18:31:21,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 18:31:21,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:31:21,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 18:31:21,973 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 18:31:21,973 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 18:31:21,973 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 54 is hopeless, skipping. [2025-04-24 18:31:21,973 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 18:31:21,974 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:21,974 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 18:31:21,974 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:21,974 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 18:31:21,974 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:31:21,974 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:31:21,974 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:31:21,974 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:31:21,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1932925675, now seen corresponding path program 7 times [2025-04-24 18:31:21,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:31:21,974 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980101402] [2025-04-24 18:31:21,974 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 18:31:21,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:31:21,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-04-24 18:31:21,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:31:21,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:31:21,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:31:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:31:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:31:22,995 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980101402] [2025-04-24 18:31:22,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980101402] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:31:22,995 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068201713] [2025-04-24 18:31:22,995 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 18:31:22,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:31:22,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:31:22,997 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 18:31:22,997 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 18:31:23,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-04-24 18:31:23,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:31:23,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:31:23,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:31:23,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:31:23,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:31:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 28 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:31:24,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:31:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:31:26,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068201713] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:31:26,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:31:26,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 108 [2025-04-24 18:31:26,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842749901] [2025-04-24 18:31:26,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:31:26,464 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2025-04-24 18:31:26,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:31:26,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2025-04-24 18:31:26,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1135, Invalid=10637, Unknown=0, NotChecked=0, Total=11772 [2025-04-24 18:31:26,465 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:31:26,465 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:31:26,465 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 2.0458715596330275) internal successors, (223), 108 states have internal predecessors, (223), 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 18:31:26,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:31:26,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:31:26,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:31:26,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:31:26,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:31:26,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:31:26,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 276 states. [2025-04-24 18:31:26,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 239 states. [2025-04-24 18:31:26,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 303 states. [2025-04-24 18:31:26,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 210 states. [2025-04-24 18:31:26,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2025-04-24 18:31:26,466 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:32:18,267 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 273 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 213 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2025-04-24 18:32:18,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 253 states. [2025-04-24 18:32:18,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-04-24 18:32:18,468 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12 [2025-04-24 18:32:18,469 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:32:18,469 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:32:18,469 INFO L139 ounterexampleChecker]: Examining path program with hash 2084095273, occurence #3 [2025-04-24 18:32:18,469 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:32:18,469 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:32:18,469 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:18,469 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:32:18,469 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:18,469 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:32:18,469 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:32:18,469 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:32:18,469 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:32:18,469 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 18:32:18,473 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:32:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1033709409, now seen corresponding path program 1 times [2025-04-24 18:32:18,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 18:32:18,473 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84937256] [2025-04-24 18:32:18,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:32:18,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:32:18,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-24 18:32:18,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 18:32:18,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:32:18,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 18:32:18,479 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 18:32:18,479 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 18:32:18,479 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 47 is hopeless, skipping. [2025-04-24 18:32:18,479 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 18:32:18,479 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:18,479 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 18:32:18,479 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:18,479 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 18:32:18,479 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:18,479 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:32:18,479 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:32:18,479 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:32:18,479 INFO L85 PathProgramCache]: Analyzing trace with hash 648768363, now seen corresponding path program 8 times [2025-04-24 18:32:18,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:32:18,479 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962113864] [2025-04-24 18:32:18,479 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:32:18,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:32:18,483 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:32:18,491 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:32:18,491 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:32:18,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:32:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:32:19,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:32:19,527 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962113864] [2025-04-24 18:32:19,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962113864] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:32:19,527 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466327810] [2025-04-24 18:32:19,527 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:32:19,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:32:19,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:32:19,529 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:32:19,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-24 18:32:19,563 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:32:19,584 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:32:19,585 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:32:19,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:32:19,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:32:19,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:32:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 28 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:32:21,127 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:32:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:32:22,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466327810] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:32:22,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:32:22,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 108 [2025-04-24 18:32:22,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518049301] [2025-04-24 18:32:22,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:32:22,979 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2025-04-24 18:32:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:32:22,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2025-04-24 18:32:22,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1116, Invalid=10656, Unknown=0, NotChecked=0, Total=11772 [2025-04-24 18:32:22,981 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:32:22,981 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:32:22,981 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 2.0458715596330275) internal successors, (223), 108 states have internal predecessors, (223), 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 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 273 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2025-04-24 18:32:22,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 213 states. [2025-04-24 18:32:22,982 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 214 states. [2025-04-24 18:32:22,982 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 253 states. [2025-04-24 18:32:22,982 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:33:27,403 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 281 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 316 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 240 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 280 states. [2025-04-24 18:33:27,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2025-04-24 18:33:27,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-04-24 18:33:27,605 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2025-04-24 18:33:27,605 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:33:27,605 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:33:27,605 INFO L139 ounterexampleChecker]: Examining path program with hash -1132986268, occurence #2 [2025-04-24 18:33:27,605 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:33:27,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:33:27,605 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:33:27,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:33:27,605 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:33:27,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:33:27,605 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:33:27,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:33:27,605 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:33:27,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2025-04-24 18:33:27,609 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:33:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1727440803, now seen corresponding path program 1 times [2025-04-24 18:33:27,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 18:33:27,609 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902091489] [2025-04-24 18:33:27,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:33:27,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:33:27,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-24 18:33:27,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-24 18:33:27,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:33:27,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 18:33:27,617 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 18:33:27,617 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 18:33:27,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 18:33:27,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:33:27,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 18:33:27,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:33:27,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 18:33:27,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:33:27,618 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:33:27,618 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:33:27,618 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:33:27,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1458982681, now seen corresponding path program 9 times [2025-04-24 18:33:27,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:33:27,618 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346003918] [2025-04-24 18:33:27,618 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:33:27,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:33:27,623 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 6 equivalence classes. [2025-04-24 18:33:27,639 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:33:27,640 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 18:33:27,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:33:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:33:28,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:33:28,619 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346003918] [2025-04-24 18:33:28,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346003918] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:33:28,619 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455869839] [2025-04-24 18:33:28,619 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:33:28,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:33:28,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:33:28,621 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:33:28,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-04-24 18:33:28,655 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 6 equivalence classes. [2025-04-24 18:33:28,678 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:33:28,678 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 18:33:28,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:33:28,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:33:28,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:33:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 21 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:33:30,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:33:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:33:32,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455869839] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:33:32,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:33:32,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 109 [2025-04-24 18:33:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802515504] [2025-04-24 18:33:32,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:33:32,230 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2025-04-24 18:33:32,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:33:32,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2025-04-24 18:33:32,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1158, Invalid=10832, Unknown=0, NotChecked=0, Total=11990 [2025-04-24 18:33:32,231 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:33:32,231 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:33:32,231 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.0272727272727273) internal successors, (223), 109 states have internal predecessors, (223), 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 18:33:32,231 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:33:32,231 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:33:32,231 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 281 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 316 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 240 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 280 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2025-04-24 18:33:32,232 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:35:49,320 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 356 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 385 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 310 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 373 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 347 states. [2025-04-24 18:35:49,321 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 270 states. [2025-04-24 18:35:49,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-04-24 18:35:49,521 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16 [2025-04-24 18:35:49,522 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:35:49,522 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:35:49,522 INFO L139 ounterexampleChecker]: Examining path program with hash -918273921, occurence #3 [2025-04-24 18:35:49,522 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:35:49,522 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:35:49,522 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:49,522 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:35:49,522 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:49,522 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:35:49,522 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:35:49,522 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:35:49,522 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:35:49,522 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 18:35:49,522 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:49,522 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 18:35:49,522 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:49,522 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 18:35:49,522 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:35:49,522 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:35:49,522 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:35:49,523 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:35:49,523 INFO L85 PathProgramCache]: Analyzing trace with hash -432748671, now seen corresponding path program 10 times [2025-04-24 18:35:49,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:35:49,523 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016879701] [2025-04-24 18:35:49,523 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:35:49,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:35:49,527 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:35:49,533 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:35:49,533 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:35:49,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:35:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:35:50,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:35:50,571 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016879701] [2025-04-24 18:35:50,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016879701] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:35:50,571 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166205886] [2025-04-24 18:35:50,571 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:35:50,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:35:50,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:35:50,573 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 18:35:50,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-04-24 18:35:50,607 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-04-24 18:35:50,629 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-04-24 18:35:50,629 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:35:50,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:35:50,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 18:35:50,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:35:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 21 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:35:52,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:35:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:35:54,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166205886] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:35:54,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:35:54,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 109 [2025-04-24 18:35:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647463451] [2025-04-24 18:35:54,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:35:54,273 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2025-04-24 18:35:54,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:35:54,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2025-04-24 18:35:54,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1049, Invalid=10941, Unknown=0, NotChecked=0, Total=11990 [2025-04-24 18:35:54,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:35:54,274 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:35:54,275 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.0272727272727273) internal successors, (223), 109 states have internal predecessors, (223), 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 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 356 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 315 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 385 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 310 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 373 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 347 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 270 states. [2025-04-24 18:35:54,275 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.