./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --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/weaver/popl20-prod-cons-eq.wvr.c -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 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 20:25:51,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 20:25:51,567 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 20:25:51,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 20:25:51,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 20:25:51,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 20:25:51,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 20:25:51,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 20:25:51,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 20:25:51,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 20:25:51,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 20:25:51,596 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 20:25:51,597 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 20:25:51,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 20:25:51,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 20:25:51,597 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 20:25:51,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 20:25:51,598 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:25:51,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:25:51,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:25:51,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 20:25:51,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:25:51,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:25:51,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:25:51,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:25:51,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 20:25:51,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 20:25:51,600 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 20:25:51,600 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 -> 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea [2025-04-24 20:25:51,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 20:25:51,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 20:25:51,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 20:25:51,824 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 20:25:51,824 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 20:25:51,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2025-04-24 20:25:53,065 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94b8f0f04/c1cc55a4bd664579a66c28228d35fa16/FLAG5cd5727c5 [2025-04-24 20:25:53,265 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 20:25:53,265 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2025-04-24 20:25:53,274 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94b8f0f04/c1cc55a4bd664579a66c28228d35fa16/FLAG5cd5727c5 [2025-04-24 20:25:54,066 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94b8f0f04/c1cc55a4bd664579a66c28228d35fa16 [2025-04-24 20:25:54,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 20:25:54,068 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 20:25:54,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 20:25:54,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 20:25:54,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 20:25:54,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a796c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54, skipping insertion in model container [2025-04-24 20:25:54,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 20:25:54,268 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/weaver/popl20-prod-cons-eq.wvr.c[4541,4554] [2025-04-24 20:25:54,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:25:54,288 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 20:25:54,316 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/weaver/popl20-prod-cons-eq.wvr.c[4541,4554] [2025-04-24 20:25:54,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:25:54,329 INFO L204 MainTranslator]: Completed translation [2025-04-24 20:25:54,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54 WrapperNode [2025-04-24 20:25:54,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 20:25:54,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 20:25:54,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 20:25:54,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 20:25:54,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,363 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 378 [2025-04-24 20:25:54,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 20:25:54,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 20:25:54,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 20:25:54,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 20:25:54,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,380 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 20:25:54,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 20:25:54,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 20:25:54,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 20:25:54,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (1/1) ... [2025-04-24 20:25:54,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:25:54,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:25:54,426 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 20:25:54,428 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 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 20:25:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 20:25:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-24 20:25:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 20:25:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 20:25:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 20:25:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 20:25:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 20:25:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 20:25:54,445 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 20:25:54,537 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 20:25:54,538 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 20:25:54,948 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 20:25:54,948 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 20:25:55,246 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 20:25:55,247 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 20:25:55,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:25:55 BoogieIcfgContainer [2025-04-24 20:25:55,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 20:25:55,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 20:25:55,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 20:25:55,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 20:25:55,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 08:25:54" (1/3) ... [2025-04-24 20:25:55,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426c5f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:25:55, skipping insertion in model container [2025-04-24 20:25:55,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:25:54" (2/3) ... [2025-04-24 20:25:55,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426c5f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:25:55, skipping insertion in model container [2025-04-24 20:25:55,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:25:55" (3/3) ... [2025-04-24 20:25:55,253 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2025-04-24 20:25:55,263 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 20:25:55,265 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-prod-cons-eq.wvr.c that has 4 procedures, 35 locations, 40 edges, 1 initial locations, 9 loop locations, and 1 error locations. [2025-04-24 20:25:55,265 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 20:25:55,307 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-24 20:25:55,360 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:25:55,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 20:25:55,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:25:55,364 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 20:25:55,365 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 20:25:55,430 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 20:25:55,441 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 20:25:55,446 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;@3c35a0fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:25:55,446 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-24 20:25:55,942 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:55,942 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:55,942 INFO L139 ounterexampleChecker]: Examining path program with hash -1140188351, occurence #1 [2025-04-24 20:25:55,943 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:25:55,943 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:55,945 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash -453622719, now seen corresponding path program 1 times [2025-04-24 20:25:55,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:55,951 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386219826] [2025-04-24 20:25:55,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:55,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:56,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-24 20:25:56,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-24 20:25:56,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:56,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:56,396 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 20:25:56,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:56,398 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386219826] [2025-04-24 20:25:56,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386219826] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:25:56,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:25:56,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:25:56,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857473581] [2025-04-24 20:25:56,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:25:56,404 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:25:56,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:56,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:25:56,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:25:56,418 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:56,419 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:56,420 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:25:56,420 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:56,560 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:56,560 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 20:25:56,560 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:56,561 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:56,561 INFO L139 ounterexampleChecker]: Examining path program with hash 1759108458, occurence #1 [2025-04-24 20:25:56,561 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:25:56,561 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:56,561 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:56,561 INFO L85 PathProgramCache]: Analyzing trace with hash -826827164, now seen corresponding path program 1 times [2025-04-24 20:25:56,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:56,561 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731930010] [2025-04-24 20:25:56,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:56,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:56,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 20:25:56,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 20:25:56,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:56,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:56,670 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 20:25:56,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:56,671 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731930010] [2025-04-24 20:25:56,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731930010] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:25:56,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:25:56,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:25:56,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110789974] [2025-04-24 20:25:56,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:25:56,672 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:25:56,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:56,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:25:56,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:25:56,674 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:56,674 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:56,674 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 20:25:56,674 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:56,674 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:57,025 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,025 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:57,025 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 20:25:57,025 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:57,025 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:57,026 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #1 [2025-04-24 20:25:57,026 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:25:57,026 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:57,026 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:57,026 INFO L85 PathProgramCache]: Analyzing trace with hash -378552572, now seen corresponding path program 1 times [2025-04-24 20:25:57,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:57,026 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110942673] [2025-04-24 20:25:57,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:57,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:57,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-24 20:25:57,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-24 20:25:57,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:57,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 20:25:57,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:57,282 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110942673] [2025-04-24 20:25:57,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110942673] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:25:57,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:25:57,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:25:57,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773442083] [2025-04-24 20:25:57,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:25:57,283 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:25:57,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:57,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:25:57,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:25:57,284 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:57,284 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:57,285 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:25:57,285 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,286 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:57,286 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:57,375 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,375 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:57,376 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,376 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 20:25:57,376 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:57,376 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:57,376 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #2 [2025-04-24 20:25:57,376 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:57,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:25:57,377 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,377 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:25:57,377 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,377 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-24 20:25:57,377 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,377 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 20:25:57,377 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,377 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:25:57,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-24 20:25:57,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 20:25:57,386 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,386 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 20:25:57,386 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,386 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 20:25:57,386 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,386 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:57,386 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:57,386 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:57,386 INFO L85 PathProgramCache]: Analyzing trace with hash -877965807, now seen corresponding path program 1 times [2025-04-24 20:25:57,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:57,386 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112937331] [2025-04-24 20:25:57,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:57,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:57,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-04-24 20:25:57,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-04-24 20:25:57,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:57,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:57,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:25:57,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:57,544 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112937331] [2025-04-24 20:25:57,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112937331] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:25:57,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:25:57,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:25:57,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68346793] [2025-04-24 20:25:57,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:25:57,545 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:25:57,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:57,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:25:57,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:25:57,546 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:57,546 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:57,546 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:25:57,546 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,546 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:57,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:57,653 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:57,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,655 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 20:25:57,655 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:57,655 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:57,655 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #3 [2025-04-24 20:25:57,655 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:57,655 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:25:57,655 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,656 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-24 20:25:57,656 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,656 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:25:57,656 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,656 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-24 20:25:57,656 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,656 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 20:25:57,656 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,656 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:25:57,656 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 20:25:57,657 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-24 20:25:57,657 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:57,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2025-04-24 20:25:57,657 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:57,657 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:57,657 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:57,658 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:57,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1237875538, now seen corresponding path program 1 times [2025-04-24 20:25:57,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:57,658 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054075389] [2025-04-24 20:25:57,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:57,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:57,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-04-24 20:25:57,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-04-24 20:25:57,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:57,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-24 20:25:57,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:57,905 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054075389] [2025-04-24 20:25:57,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054075389] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:25:57,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:25:57,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-24 20:25:57,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97402545] [2025-04-24 20:25:57,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:25:57,906 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-24 20:25:57,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:57,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-24 20:25:57,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-24 20:25:57,907 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:57,907 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:57,907 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 20:25:57,907 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,907 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:57,907 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,907 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:57,907 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:58,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:58,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:58,213 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 20:25:58,213 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:58,213 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:58,214 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #4 [2025-04-24 20:25:58,214 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:25:58,214 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:25:58,214 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 20:25:58,214 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:25:58,214 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:25:58,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-24 20:25:58,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 20:25:58,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-04-24 20:25:58,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2025-04-24 20:25:58,214 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,214 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:58,214 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:58,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:58,214 INFO L85 PathProgramCache]: Analyzing trace with hash -898427171, now seen corresponding path program 1 times [2025-04-24 20:25:58,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:58,215 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307229931] [2025-04-24 20:25:58,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:58,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:58,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-24 20:25:58,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-24 20:25:58,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:58,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:25:58,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:58,382 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307229931] [2025-04-24 20:25:58,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307229931] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:25:58,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:25:58,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:25:58,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110736885] [2025-04-24 20:25:58,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:25:58,382 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:25:58,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:58,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:25:58,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:25:58,383 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:58,384 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:58,384 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 20:25:58,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:58,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:58,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:58,463 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-24 20:25:58,463 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:58,463 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:58,464 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #5 [2025-04-24 20:25:58,464 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:58,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:25:58,465 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:25:58,465 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-24 20:25:58,465 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 20:25:58,465 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-24 20:25:58,465 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-24 20:25:58,465 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 20:25:58,465 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 20:25:58,466 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:58,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 20:25:58,466 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:58,466 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:58,466 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:58,466 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:58,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1402444984, now seen corresponding path program 1 times [2025-04-24 20:25:58,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:58,467 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11945998] [2025-04-24 20:25:58,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:58,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:58,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-24 20:25:58,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 20:25:58,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:58,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:58,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:25:58,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:58,705 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11945998] [2025-04-24 20:25:58,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11945998] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:58,706 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207981728] [2025-04-24 20:25:58,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:58,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:25:58,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:25:58,708 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 20:25:58,711 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 20:25:58,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-24 20:25:58,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 20:25:58,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:58,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:58,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-24 20:25:58,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:25:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:25:58,924 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:25:59,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:25:59,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207981728] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:25:59,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:25:59,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-04-24 20:25:59,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117669460] [2025-04-24 20:25:59,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:25:59,009 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-24 20:25:59,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:59,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-24 20:25:59,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-04-24 20:25:59,010 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:59,011 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:59,011 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 20:25:59,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:59,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:59,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:59,183 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,184 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:59,184 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,184 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,184 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:59,184 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,187 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:25:59,193 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 20:25:59,387 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,SelfDestructingSolverStorable6 [2025-04-24 20:25:59,387 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:59,388 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:59,388 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #6 [2025-04-24 20:25:59,388 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:25:59,388 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 20:25:59,388 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:25:59,388 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:25:59,388 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:25:59,388 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 20:25:59,388 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 20:25:59,388 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2025-04-24 20:25:59,388 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 20:25:59,388 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,388 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:59,388 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:59,389 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:59,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1610078793, now seen corresponding path program 2 times [2025-04-24 20:25:59,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:59,389 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419386343] [2025-04-24 20:25:59,389 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:25:59,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:59,408 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-04-24 20:25:59,431 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 35 of 42 statements. [2025-04-24 20:25:59,431 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:25:59,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-24 20:25:59,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:59,506 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419386343] [2025-04-24 20:25:59,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419386343] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:25:59,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:25:59,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:25:59,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309461271] [2025-04-24 20:25:59,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:25:59,506 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:25:59,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:59,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:25:59,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:25:59,507 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:59,507 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:59,507 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:25:59,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:25:59,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:25:59,565 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-24 20:25:59,565 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:25:59,565 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:59,565 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #7 [2025-04-24 20:25:59,565 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:59,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:25:59,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 20:25:59,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:25:59,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:25:59,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:25:59,566 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 20:25:59,566 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 20:25:59,566 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-04-24 20:25:59,566 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:59,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-04-24 20:25:59,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:59,566 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:59,566 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:59,566 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:59,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2116796335, now seen corresponding path program 1 times [2025-04-24 20:25:59,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:59,567 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952215547] [2025-04-24 20:25:59,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:59,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:59,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-24 20:25:59,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-24 20:25:59,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:59,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:25:59,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:59,835 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952215547] [2025-04-24 20:25:59,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952215547] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:59,836 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904776508] [2025-04-24 20:25:59,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:59,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:25:59,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:25:59,838 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 20:25:59,839 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 20:25:59,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-24 20:25:59,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-24 20:25:59,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:59,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:59,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 20:25:59,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:26:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:26:00,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:26:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:26:00,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904776508] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:26:00,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:26:00,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-04-24 20:26:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144121499] [2025-04-24 20:26:00,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:26:00,211 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-24 20:26:00,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:00,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-24 20:26:00,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2025-04-24 20:26:00,212 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:00,212 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:00,212 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.666666666666667) internal successors, (84), 18 states have internal predecessors, (84), 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 20:26:00,212 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,212 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,212 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,212 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,212 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:00,212 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,213 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:00,213 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,213 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:00,370 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 20:26:00,568 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:00,568 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:00,568 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:00,569 INFO L139 ounterexampleChecker]: Examining path program with hash 2086131515, occurence #8 [2025-04-24 20:26:00,569 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:26:00,569 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-24 20:26:00,569 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 20:26:00,569 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-24 20:26:00,569 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-24 20:26:00,569 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 20:26:00,569 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 20:26:00,569 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2025-04-24 20:26:00,569 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:00,569 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 20:26:00,569 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:00,569 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:26:00,569 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:00,569 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:00,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1057076704, now seen corresponding path program 2 times [2025-04-24 20:26:00,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:00,570 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471588055] [2025-04-24 20:26:00,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:26:00,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:00,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-04-24 20:26:00,606 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 35 of 51 statements. [2025-04-24 20:26:00,607 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:26:00,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:00,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-04-24 20:26:00,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:00,741 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471588055] [2025-04-24 20:26:00,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471588055] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:26:00,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:26:00,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:26:00,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914812626] [2025-04-24 20:26:00,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:26:00,742 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:26:00,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:00,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:26:00,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:26:00,743 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:00,743 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:00,743 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:00,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:00,860 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,860 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,860 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,860 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,860 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:00,860 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:00,861 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:00,861 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:00,861 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:00,861 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:00,861 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-24 20:26:00,861 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:00,861 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:00,861 INFO L139 ounterexampleChecker]: Examining path program with hash 579474566, occurence #1 [2025-04-24 20:26:00,861 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:26:00,861 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:00,862 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1226527241, now seen corresponding path program 3 times [2025-04-24 20:26:00,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:00,863 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044826872] [2025-04-24 20:26:00,863 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:26:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:00,880 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 58 statements into 3 equivalence classes. [2025-04-24 20:26:00,940 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 57 of 58 statements. [2025-04-24 20:26:00,940 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 20:26:00,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-04-24 20:26:01,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:01,200 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044826872] [2025-04-24 20:26:01,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044826872] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:26:01,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:26:01,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:26:01,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435981530] [2025-04-24 20:26:01,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:26:01,201 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:26:01,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:01,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:26:01,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:26:01,202 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:01,202 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:01,202 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 20:26:01,202 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,202 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,202 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,202 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,202 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,202 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:01,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:01,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,278 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-24 20:26:01,278 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:01,278 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:01,278 INFO L139 ounterexampleChecker]: Examining path program with hash 579474566, occurence #2 [2025-04-24 20:26:01,278 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:26:01,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:26:01,278 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:01,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-24 20:26:01,278 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:01,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 20:26:01,278 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:01,279 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:26:01,279 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:01,279 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-24 20:26:01,279 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:01,279 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 20:26:01,279 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:01,279 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-24 20:26:01,279 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:01,279 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-04-24 20:26:01,334 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:01,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1162612366, now seen corresponding path program 1 times [2025-04-24 20:26:01,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:26:01,334 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348725885] [2025-04-24 20:26:01,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:26:01,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:01,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-24 20:26:01,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 20:26:01,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:26:01,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-04-24 20:26:01,410 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-24 20:26:01,410 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348725885] [2025-04-24 20:26:01,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348725885] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:26:01,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:26:01,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:26:01,412 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 48. Constructing proof automaton... [2025-04-24 20:26:01,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:26:01,412 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-04-24 20:26:01,412 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-24 20:26:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-04-24 20:26:01,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:26:01,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:26:01,414 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:01,414 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:01,414 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 33.0) internal successors, (33), 2 states have internal predecessors, (33), 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 20:26:01,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:01,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:01,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:01,577 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:01,578 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:01,579 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-24 20:26:01,579 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:01,579 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:01,579 INFO L139 ounterexampleChecker]: Examining path program with hash 1767379135, occurence #1 [2025-04-24 20:26:01,579 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:26:01,579 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:01,579 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1912994881, now seen corresponding path program 1 times [2025-04-24 20:26:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:01,580 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325909031] [2025-04-24 20:26:01,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:26:01,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:01,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-24 20:26:01,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-24 20:26:01,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:26:01,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 20:26:01,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:01,911 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325909031] [2025-04-24 20:26:01,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325909031] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:01,911 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933325549] [2025-04-24 20:26:01,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:26:01,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:01,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:26:01,913 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 20:26:01,915 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 20:26:02,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-24 20:26:02,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-24 20:26:02,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:26:02,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:02,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-24 20:26:02,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:26:02,253 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 20:26:02,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:26:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 20:26:02,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933325549] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:26:02,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:26:02,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2025-04-24 20:26:02,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111365433] [2025-04-24 20:26:02,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:26:02,434 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-04-24 20:26:02,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:02,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-04-24 20:26:02,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2025-04-24 20:26:02,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:02,435 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:02,435 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.375) internal successors, (105), 24 states have internal predecessors, (105), 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 20:26:02,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:02,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:02,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:02,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:02,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:02,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:02,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:02,640 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 20:26:02,837 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:02,837 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:02,837 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:02,837 INFO L139 ounterexampleChecker]: Examining path program with hash 1767379135, occurence #2 [2025-04-24 20:26:02,837 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:26:02,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:26:02,837 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:02,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:26:02,837 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:02,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:26:02,837 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:02,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-24 20:26:02,837 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:02,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 20:26:02,837 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:02,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 20:26:02,837 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:02,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-24 20:26:02,838 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:02,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-04-24 20:26:02,906 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:02,906 INFO L85 PathProgramCache]: Analyzing trace with hash -233955413, now seen corresponding path program 1 times [2025-04-24 20:26:02,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:26:02,906 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628932736] [2025-04-24 20:26:02,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:26:02,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:02,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-24 20:26:02,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 20:26:02,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:26:02,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-04-24 20:26:03,016 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-24 20:26:03,016 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628932736] [2025-04-24 20:26:03,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628932736] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:26:03,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:26:03,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:26:03,016 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 48. Constructing proof automaton... [2025-04-24 20:26:03,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:26:03,017 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-04-24 20:26:03,017 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:26:03,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-04-24 20:26:03,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:26:03,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:26:03,017 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:03,017 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:03,018 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:03,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:03,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:03,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:03,431 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,431 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:03,431 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:03,431 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,431 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,431 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:03,431 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,431 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-04-24 20:26:03,431 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:03,431 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:03,432 INFO L139 ounterexampleChecker]: Examining path program with hash 794587112, occurence #1 [2025-04-24 20:26:03,432 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:26:03,432 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:03,432 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:03,432 INFO L85 PathProgramCache]: Analyzing trace with hash 85679964, now seen corresponding path program 2 times [2025-04-24 20:26:03,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:03,432 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487492582] [2025-04-24 20:26:03,432 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:26:03,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:03,447 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-04-24 20:26:03,502 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-04-24 20:26:03,502 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:26:03,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-24 20:26:03,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:03,648 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487492582] [2025-04-24 20:26:03,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487492582] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:03,648 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604385629] [2025-04-24 20:26:03,648 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:26:03,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:03,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:26:03,650 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 20:26:03,651 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 20:26:03,751 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-04-24 20:26:03,807 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-04-24 20:26:03,807 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:26:03,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:03,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 20:26:03,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:26:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-04-24 20:26:03,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:26:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-24 20:26:03,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604385629] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:26:03,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:26:03,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 8 [2025-04-24 20:26:03,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036052833] [2025-04-24 20:26:03,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:26:03,902 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-24 20:26:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:03,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-24 20:26:03,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-04-24 20:26:03,903 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:03,903 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:03,903 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:03,903 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:04,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:04,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:04,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:04,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:04,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:04,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:04,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:04,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:04,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-24 20:26:04,400 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-04-24 20:26:04,400 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:04,401 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:04,401 INFO L139 ounterexampleChecker]: Examining path program with hash 1889587517, occurence #1 [2025-04-24 20:26:04,401 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:26:04,401 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:04,401 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:04,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1174011028, now seen corresponding path program 3 times [2025-04-24 20:26:04,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:04,401 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048815214] [2025-04-24 20:26:04,401 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:26:04,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:04,417 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 49 statements into 3 equivalence classes. [2025-04-24 20:26:04,499 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 46 of 49 statements. [2025-04-24 20:26:04,499 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 20:26:04,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-24 20:26:05,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:05,316 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048815214] [2025-04-24 20:26:05,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048815214] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:05,316 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335861977] [2025-04-24 20:26:05,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:26:05,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:05,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:26:05,319 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 20:26:05,319 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 20:26:05,421 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 49 statements into 3 equivalence classes. [2025-04-24 20:26:05,503 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 46 of 49 statements. [2025-04-24 20:26:05,503 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 20:26:05,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:05,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-04-24 20:26:05,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:26:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-24 20:26:06,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:26:06,489 INFO L325 Elim1Store]: treesize reduction 10, result has 86.3 percent of original size [2025-04-24 20:26:06,490 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 110 [2025-04-24 20:26:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-24 20:26:06,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335861977] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:26:06,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:26:06,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 14] total 42 [2025-04-24 20:26:06,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035742819] [2025-04-24 20:26:06,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:26:06,883 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-04-24 20:26:06,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:06,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-04-24 20:26:06,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1573, Unknown=0, NotChecked=0, Total=1806 [2025-04-24 20:26:06,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:06,884 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:06,885 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.9767441860465116) internal successors, (128), 42 states have internal predecessors, (128), 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 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:06,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:26:07,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-24 20:26:08,113 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-04-24 20:26:08,114 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:08,114 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:08,114 INFO L139 ounterexampleChecker]: Examining path program with hash 1889587517, occurence #2 [2025-04-24 20:26:08,114 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:26:08,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 20:26:08,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-24 20:26:08,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-24 20:26:08,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 20:26:08,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 20:26:08,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-24 20:26:08,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2025-04-24 20:26:08,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:08,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-04-24 20:26:08,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:08,114 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:26:08,114 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:08,115 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:08,115 INFO L85 PathProgramCache]: Analyzing trace with hash -184655839, now seen corresponding path program 4 times [2025-04-24 20:26:08,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:08,115 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982846107] [2025-04-24 20:26:08,115 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:26:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:08,130 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 50 statements into 2 equivalence classes. [2025-04-24 20:26:08,195 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-04-24 20:26:08,196 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 20:26:08,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-04-24 20:26:09,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:09,147 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982846107] [2025-04-24 20:26:09,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982846107] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:09,147 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984461204] [2025-04-24 20:26:09,147 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:26:09,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:09,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:26:09,149 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 20:26:09,160 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 20:26:09,270 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 50 statements into 2 equivalence classes. [2025-04-24 20:26:09,330 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-04-24 20:26:09,331 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 20:26:09,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:09,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-04-24 20:26:09,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:26:09,402 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-04-24 20:26:09,429 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2025-04-24 20:26:09,432 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2025-04-24 20:26:09,436 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2025-04-24 20:26:09,470 INFO L325 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-04-24 20:26:09,470 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-04-24 20:26:09,512 INFO L325 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-04-24 20:26:09,512 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-04-24 20:26:09,546 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2025-04-24 20:26:09,575 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2025-04-24 20:26:10,135 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 20:26:10,135 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2025-04-24 20:26:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-24 20:26:10,203 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:26:11,474 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 469 treesize of output 465 [2025-04-24 20:26:11,513 INFO L325 Elim1Store]: treesize reduction 10, result has 60.0 percent of original size [2025-04-24 20:26:11,513 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 139 [2025-04-24 20:26:11,522 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 20:26:11,523 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 20:26:11,528 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 20:26:11,528 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 115 [2025-04-24 20:26:11,542 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 20:26:11,542 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 52 [2025-04-24 20:26:11,689 INFO L325 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2025-04-24 20:26:11,689 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 150 [2025-04-24 20:26:25,735 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 2 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-24 20:26:25,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984461204] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:26:25,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:26:25,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 21, 20] total 48 [2025-04-24 20:26:25,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836419990] [2025-04-24 20:26:25,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:26:25,735 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-04-24 20:26:25,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:25,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-04-24 20:26:25,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=1842, Unknown=24, NotChecked=0, Total=2256 [2025-04-24 20:26:25,737 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:25,737 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:25,737 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.6875) internal successors, (129), 48 states have internal predecessors, (129), 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 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:26:25,737 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:40,437 WARN L849 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| c_~done~0.base))) (let ((.cse0 (= (mod |c_thread2Thread1of1ForFork2_~cond~0#1| 256) 0)) (.cse1 (< 0 (mod c_~finished2~0 256))) (.cse2 (forall ((v_~state21~0_193 Int)) (= (mod (select .cse4 (+ v_~state21~0_193 c_~done~0.offset)) 256) 0))) (.cse3 (forall ((v_~state11~0_185 Int)) (or (< v_~state11~0_185 0) (= (mod (select .cse4 (+ v_~state11~0_185 c_~done~0.offset)) 256) 0) (< c_~n_update~0 (+ v_~state11~0_185 1)))))) (and (or .cse0 (< c_~n_update~0 (+ c_~state11~0 1)) .cse1 (< c_~state11~0 0) .cse2 (< 0 (mod c_~finished1~0 256)) .cse3) (or (forall ((~state11~0 Int)) (or (< c_~n_update~0 (+ ~state11~0 1)) (< ~state11~0 0) (not (= (mod (select .cse4 (+ ~state11~0 c_~done~0.offset)) 256) 0)))) .cse0 .cse1 .cse2 .cse3) (= c_~finished2~0 0)))) is different from false [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:26:46,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:26:46,847 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:26:46,857 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 20:26:47,047 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,SelfDestructingSolverStorable16 [2025-04-24 20:26:47,047 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:26:47,047 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:47,047 INFO L139 ounterexampleChecker]: Examining path program with hash 1889587517, occurence #3 [2025-04-24 20:26:47,047 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:26:47,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:26:47,047 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:47,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:26:47,047 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:47,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:26:47,047 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:47,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 20:26:47,048 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:47,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 20:26:47,048 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:47,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-24 20:26:47,048 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:47,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 20:26:47,048 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:47,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-04-24 20:26:47,048 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:47,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-04-24 20:26:47,048 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:47,048 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:26:47,048 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:47,048 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:47,048 INFO L85 PathProgramCache]: Analyzing trace with hash 491303798, now seen corresponding path program 5 times [2025-04-24 20:26:47,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:47,048 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641498231] [2025-04-24 20:26:47,048 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:26:47,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:47,064 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 52 statements into 3 equivalence classes. [2025-04-24 20:26:47,094 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 52 of 52 statements. [2025-04-24 20:26:47,095 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-24 20:26:47,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-04-24 20:26:47,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:47,569 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641498231] [2025-04-24 20:26:47,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641498231] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:47,569 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828703061] [2025-04-24 20:26:47,569 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:26:47,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:47,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:26:47,572 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 20:26:47,572 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 20:26:47,714 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 52 statements into 3 equivalence classes. [2025-04-24 20:27:03,821 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 52 of 52 statements. [2025-04-24 20:27:03,821 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-24 20:27:03,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:27:03,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-24 20:27:03,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:27:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-04-24 20:27:04,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:27:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-04-24 20:27:05,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828703061] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:27:05,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:27:05,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-04-24 20:27:05,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412346253] [2025-04-24 20:27:05,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:27:05,058 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 20:27:05,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:27:05,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 20:27:05,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2025-04-24 20:27:05,058 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:27:05,058 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:27:05,059 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:27:05,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:27:06,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:27:06,143 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:27:06,158 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 20:27:06,343 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:27:06,343 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:27:06,343 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:27:06,344 INFO L139 ounterexampleChecker]: Examining path program with hash 1889587517, occurence #4 [2025-04-24 20:27:06,344 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:27:06,344 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:27:06,344 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-24 20:27:06,344 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 20:27:06,344 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 20:27:06,344 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-24 20:27:06,344 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-04-24 20:27:06,344 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 20:27:06,344 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:27:06,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-24 20:27:06,344 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:27:06,344 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:27:06,344 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:27:06,344 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:27:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash 542727769, now seen corresponding path program 6 times [2025-04-24 20:27:06,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:27:06,344 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138373676] [2025-04-24 20:27:06,344 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 20:27:06,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:27:06,359 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 53 statements into 3 equivalence classes. [2025-04-24 20:27:06,632 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 53 of 53 statements. [2025-04-24 20:27:06,632 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-24 20:27:06,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:27:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-24 20:27:27,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:27:27,730 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138373676] [2025-04-24 20:27:27,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138373676] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:27:27,730 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390365840] [2025-04-24 20:27:27,730 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 20:27:27,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:27:27,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:27:27,732 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 20:27:27,732 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 20:27:27,848 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 53 statements into 3 equivalence classes. [2025-04-24 20:27:27,945 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 53 of 53 statements. [2025-04-24 20:27:27,945 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-24 20:27:27,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:27:27,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-04-24 20:27:27,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:27:33,020 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 20:27:33,021 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 60 [2025-04-24 20:27:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-04-24 20:27:34,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:27:38,705 INFO L325 Elim1Store]: treesize reduction 10, result has 87.0 percent of original size [2025-04-24 20:27:38,705 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 90 [2025-04-24 20:27:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-24 20:27:40,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390365840] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:27:40,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:27:40,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 8] total 44 [2025-04-24 20:27:40,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531798874] [2025-04-24 20:27:40,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:27:40,476 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2025-04-24 20:27:40,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:27:40,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2025-04-24 20:27:40,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1780, Unknown=0, NotChecked=0, Total=1980 [2025-04-24 20:27:40,477 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:27:40,477 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:27:40,477 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.911111111111111) internal successors, (131), 44 states have internal predecessors, (131), 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 20:27:40,477 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:40,477 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:27:40,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:28:06,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:06,741 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-04-24 20:28:06,748 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 20:28:06,941 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:28:06,942 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:28:06,942 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:28:06,942 INFO L139 ounterexampleChecker]: Examining path program with hash -2031040275, occurence #1 [2025-04-24 20:28:06,942 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:28:06,942 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:28:06,942 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:28:06,942 INFO L85 PathProgramCache]: Analyzing trace with hash -846074708, now seen corresponding path program 7 times [2025-04-24 20:28:06,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:28:06,942 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659177307] [2025-04-24 20:28:06,942 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 20:28:06,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:28:06,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-04-24 20:28:06,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-04-24 20:28:06,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:28:06,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:28:08,167 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-04-24 20:28:08,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:28:08,167 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659177307] [2025-04-24 20:28:08,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659177307] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:28:08,168 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538482015] [2025-04-24 20:28:08,168 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 20:28:08,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:28:08,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:28:08,170 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 20:28:08,170 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 20:28:08,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-04-24 20:28:08,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-04-24 20:28:08,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:28:08,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:28:08,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-24 20:28:08,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:28:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 51 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-24 20:28:11,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:28:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-24 20:28:14,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538482015] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:28:14,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:28:14,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2025-04-24 20:28:14,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821705390] [2025-04-24 20:28:14,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:28:14,542 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-04-24 20:28:14,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:28:14,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-04-24 20:28:14,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2025-04-24 20:28:14,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:28:14,543 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:28:14,543 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:14,543 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:14,544 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:14,544 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:28:14,544 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:28:14,544 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:14,544 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2025-04-24 20:28:14,544 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-04-24 20:28:17,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 20:28:17,721 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 20:28:17,914 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,SelfDestructingSolverStorable19 [2025-04-24 20:28:17,914 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:28:17,914 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:28:17,915 INFO L139 ounterexampleChecker]: Examining path program with hash -2031040275, occurence #2 [2025-04-24 20:28:17,915 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:28:17,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:28:17,915 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:17,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:28:17,915 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:17,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 20:28:17,915 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:17,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 20:28:17,915 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:17,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-24 20:28:17,915 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:17,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 20:28:17,915 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:17,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-24 20:28:17,916 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:17,916 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-04-24 20:28:17,916 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:17,916 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 84 [2025-04-24 20:28:17,916 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:17,916 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2025-04-24 20:28:17,916 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:17,916 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:28:17,916 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:28:17,916 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:28:17,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1464750205, now seen corresponding path program 8 times [2025-04-24 20:28:17,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:28:17,916 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107583011] [2025-04-24 20:28:17,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:28:17,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:28:17,935 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-04-24 20:28:17,966 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-04-24 20:28:17,967 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:28:17,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:28:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 22 proven. 45 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-24 20:28:19,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:28:19,572 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107583011] [2025-04-24 20:28:19,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107583011] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:28:19,572 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185248583] [2025-04-24 20:28:19,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:28:19,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:28:19,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:28:19,574 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 20:28:19,575 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 20:28:19,710 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-04-24 20:28:19,781 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-04-24 20:28:19,782 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:28:19,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:28:19,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-24 20:28:19,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:28:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 57 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-04-24 20:28:23,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:28:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 37 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-04-24 20:28:27,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185248583] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:28:27,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:28:27,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 36 [2025-04-24 20:28:27,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385054642] [2025-04-24 20:28:27,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:28:27,620 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-04-24 20:28:27,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:28:27,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-04-24 20:28:27,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2025-04-24 20:28:27,621 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:28:27,621 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:28:27,621 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.722222222222222) internal successors, (170), 36 states have internal predecessors, (170), 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 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:27,621 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:27,622 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:27,622 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:28:27,622 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:28:27,622 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:27,622 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2025-04-24 20:28:27,622 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 20:28:27,622 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:28:30,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 20:28:30,154 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 20:28:30,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-04-24 20:28:30,354 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:28:30,354 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:28:30,354 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:28:30,354 INFO L139 ounterexampleChecker]: Examining path program with hash -2031040275, occurence #3 [2025-04-24 20:28:30,354 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:28:30,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-24 20:28:30,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 20:28:30,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 20:28:30,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-24 20:28:30,355 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 20:28:30,355 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-24 20:28:30,355 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-04-24 20:28:30,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 85 [2025-04-24 20:28:30,355 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:28:30,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-04-24 20:28:30,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:28:30,355 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:28:30,355 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:28:30,355 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:28:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 831145868, now seen corresponding path program 9 times [2025-04-24 20:28:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:28:30,355 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677387794] [2025-04-24 20:28:30,355 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:28:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:28:30,375 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 89 statements into 4 equivalence classes. [2025-04-24 20:28:30,525 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 59 of 89 statements. [2025-04-24 20:28:30,525 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 20:28:30,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:28:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-04-24 20:28:52,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:28:52,967 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677387794] [2025-04-24 20:28:52,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677387794] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:28:52,967 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558870280] [2025-04-24 20:28:52,967 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:28:52,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:28:52,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:28:52,969 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 20:28:52,970 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 20:28:53,115 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 89 statements into 4 equivalence classes. [2025-04-24 20:28:53,802 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 59 of 89 statements. [2025-04-24 20:28:53,803 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 20:28:53,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:28:53,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 98 conjuncts are in the unsatisfiable core [2025-04-24 20:28:53,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:28:58,409 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-04-24 20:28:58,441 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-04-24 20:29:40,586 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 390 DAG size of output: 209 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-04-24 20:29:40,586 INFO L325 Elim1Store]: treesize reduction 779, result has 43.0 percent of original size [2025-04-24 20:29:40,587 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 21 new quantified variables, introduced 91 case distinctions, treesize of input 208 treesize of output 676 [2025-04-24 20:29:40,684 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 433 treesize of output 369 [2025-04-24 20:29:40,727 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 369 treesize of output 305 [2025-04-24 20:34:29,801 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-04-24 20:34:29,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2025-04-24 20:34:29,802 WARN L310 FreeRefinementEngine]: Global settings require throwing the following exception [2025-04-24 20:34:29,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-04-24 20:34:30,002 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,SelfDestructingSolverStorable21 [2025-04-24 20:34:30,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-24 20:34:30,009 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:589) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:726) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:274) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:196) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:241) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:191) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:285) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:56) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:427) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 76 more [2025-04-24 20:34:30,015 INFO L158 Benchmark]: Toolchain (without parser) took 515946.12ms. Allocated memory was 167.8MB in the beginning and 880.8MB in the end (delta: 713.0MB). Free memory was 124.2MB in the beginning and 569.7MB in the end (delta: -445.6MB). Peak memory consumption was 553.8MB. Max. memory is 16.1GB. [2025-04-24 20:34:30,015 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 20:34:30,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.09ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 108.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-24 20:34:30,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.27ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 105.0MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 20:34:30,015 INFO L158 Benchmark]: Boogie Preprocessor took 35.21ms. Allocated memory is still 167.8MB. Free memory was 105.0MB in the beginning and 102.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 20:34:30,015 INFO L158 Benchmark]: RCFGBuilder took 847.18ms. Allocated memory is still 167.8MB. Free memory was 102.7MB in the beginning and 62.5MB in the end (delta: 40.2MB). Peak memory consumption was 84.3MB. Max. memory is 16.1GB. [2025-04-24 20:34:30,015 INFO L158 Benchmark]: TraceAbstraction took 514765.57ms. Allocated memory was 167.8MB in the beginning and 880.8MB in the end (delta: 713.0MB). Free memory was 61.6MB in the beginning and 569.7MB in the end (delta: -508.1MB). Peak memory consumption was 494.6MB. Max. memory is 16.1GB. [2025-04-24 20:34:30,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.09ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 108.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.27ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 105.0MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.21ms. Allocated memory is still 167.8MB. Free memory was 105.0MB in the beginning and 102.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 847.18ms. Allocated memory is still 167.8MB. Free memory was 102.7MB in the beginning and 62.5MB in the end (delta: 40.2MB). Peak memory consumption was 84.3MB. Max. memory is 16.1GB. * TraceAbstraction took 514765.57ms. Allocated memory was 167.8MB in the beginning and 880.8MB in the end (delta: 713.0MB). Free memory was 61.6MB in the beginning and 569.7MB in the end (delta: -508.1MB). Peak memory consumption was 494.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/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/weaver/popl20-prod-cons-eq.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.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 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 20:34:31,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 20:34:31,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-04-24 20:34:31,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 20:34:31,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 20:34:31,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 20:34:31,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 20:34:31,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 20:34:31,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 20:34:31,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 20:34:31,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 20:34:31,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 20:34:31,655 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 20:34:31,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 20:34:31,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 20:34:31,655 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 20:34:31,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 20:34:31,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 20:34:31,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 20:34:31,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 20:34:31,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 20:34:31,656 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-24 20:34:31,656 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-24 20:34:31,656 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 20:34:31,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 20:34:31,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 20:34:31,657 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 20:34:31,657 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 20:34:31,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:34:31,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:34:31,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:34:31,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:34:31,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 20:34:31,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:34:31,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:34:31,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:34:31,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:34:31,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 20:34:31,658 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-04-24 20:34:31,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 20:34:31,658 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 20:34:31,658 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 20:34:31,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 20:34:31,659 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-24 20:34:31,659 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 20:34:31,659 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-24 20:34:31,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 20:34:31,659 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 20:34:31,659 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 20:34:31,659 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 -> 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea [2025-04-24 20:34:31,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 20:34:31,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 20:34:31,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 20:34:31,912 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 20:34:31,912 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 20:34:31,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2025-04-24 20:34:33,207 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c39dac6f3/dc5bdb56bbca4ef7b7003f379cb2a7ca/FLAG124308a46 [2025-04-24 20:34:33,380 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 20:34:33,381 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2025-04-24 20:34:33,388 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c39dac6f3/dc5bdb56bbca4ef7b7003f379cb2a7ca/FLAG124308a46 [2025-04-24 20:34:34,208 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c39dac6f3/dc5bdb56bbca4ef7b7003f379cb2a7ca [2025-04-24 20:34:34,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 20:34:34,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 20:34:34,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 20:34:34,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 20:34:34,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 20:34:34,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38af589e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34, skipping insertion in model container [2025-04-24 20:34:34,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 20:34:34,375 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/weaver/popl20-prod-cons-eq.wvr.c[4541,4554] [2025-04-24 20:34:34,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:34:34,395 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 20:34:34,426 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/weaver/popl20-prod-cons-eq.wvr.c[4541,4554] [2025-04-24 20:34:34,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:34:34,441 INFO L204 MainTranslator]: Completed translation [2025-04-24 20:34:34,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34 WrapperNode [2025-04-24 20:34:34,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 20:34:34,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 20:34:34,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 20:34:34,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 20:34:34,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,484 INFO L138 Inliner]: procedures = 29, calls = 67, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 366 [2025-04-24 20:34:34,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 20:34:34,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 20:34:34,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 20:34:34,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 20:34:34,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,502 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 20:34:34,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 20:34:34,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 20:34:34,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 20:34:34,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (1/1) ... [2025-04-24 20:34:34,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:34:34,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:34,537 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 20:34:34,540 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 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2025-04-24 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-04-24 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-04-24 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-04-24 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-04-24 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 20:34:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 20:34:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 20:34:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 20:34:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-24 20:34:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-24 20:34:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 20:34:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 20:34:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 20:34:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 20:34:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 20:34:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2025-04-24 20:34:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-04-24 20:34:34,559 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 20:34:34,671 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 20:34:34,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 20:34:35,204 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 20:34:35,204 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 20:34:35,558 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 20:34:35,558 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 20:34:35,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:34:35 BoogieIcfgContainer [2025-04-24 20:34:35,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 20:34:35,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 20:34:35,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 20:34:35,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 20:34:35,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 08:34:34" (1/3) ... [2025-04-24 20:34:35,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59145aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:34:35, skipping insertion in model container [2025-04-24 20:34:35,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:34:34" (2/3) ... [2025-04-24 20:34:35,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59145aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:34:35, skipping insertion in model container [2025-04-24 20:34:35,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:34:35" (3/3) ... [2025-04-24 20:34:35,564 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2025-04-24 20:34:35,574 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 20:34:35,575 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-prod-cons-eq.wvr.c that has 4 procedures, 35 locations, 40 edges, 1 initial locations, 9 loop locations, and 1 error locations. [2025-04-24 20:34:35,576 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 20:34:35,616 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-24 20:34:35,643 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:34:35,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 20:34:35,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:35,645 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 20:34:35,647 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 20:34:35,719 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 20:34:35,729 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 20:34:35,733 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;@4088b5ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:34:35,733 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-24 20:34:37,660 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:37,661 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:37,661 INFO L139 ounterexampleChecker]: Examining path program with hash 1703781913, occurence #1 [2025-04-24 20:34:37,662 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:34:37,662 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:37,665 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:37,665 INFO L85 PathProgramCache]: Analyzing trace with hash 326109421, now seen corresponding path program 1 times [2025-04-24 20:34:37,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:37,674 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933984727] [2025-04-24 20:34:37,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:34:37,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:37,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:37,677 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 20:34:37,678 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 20:34:37,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-24 20:34:37,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-24 20:34:37,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:34:37,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:37,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-24 20:34:37,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:37,859 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 20:34:37,859 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:34:37,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:37,860 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933984727] [2025-04-24 20:34:37,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933984727] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:34:37,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:34:37,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:34:37,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507211309] [2025-04-24 20:34:37,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:37,865 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:34:37,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:37,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:34:37,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:34:37,881 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:37,882 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:37,883 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:34:37,883 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:38,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:38,009 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 20:34:38,202 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 [2025-04-24 20:34:38,202 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:38,202 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:38,203 INFO L139 ounterexampleChecker]: Examining path program with hash 1703781913, occurence #2 [2025-04-24 20:34:38,203 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:34:38,203 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:34:38,203 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:38,203 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-24 20:34:38,203 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:38,203 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:34:38,203 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:38,204 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:34:38,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:38,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:34:38,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:38,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:34:38,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:38,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2025-04-24 20:34:38,214 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:38,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 20:34:38,215 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:38,215 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:34:38,215 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:38,217 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1301511963, now seen corresponding path program 1 times [2025-04-24 20:34:38,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:38,217 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374752552] [2025-04-24 20:34:38,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:34:38,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:38,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:38,219 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 20:34:38,222 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 20:34:38,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-24 20:34:38,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 20:34:38,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:34:38,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:38,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-24 20:34:38,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-24 20:34:38,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:34:38,386 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:38,386 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374752552] [2025-04-24 20:34:38,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374752552] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:34:38,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:34:38,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:34:38,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767809072] [2025-04-24 20:34:38,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:38,387 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:34:38,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:38,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:34:38,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:34:38,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:38,389 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:38,389 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:34:38,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:38,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:38,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:38,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:38,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-24 20:34:38,751 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:38,752 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:38,752 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:38,752 INFO L139 ounterexampleChecker]: Examining path program with hash 1174741894, occurence #1 [2025-04-24 20:34:38,752 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:34:38,752 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:38,752 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:38,752 INFO L85 PathProgramCache]: Analyzing trace with hash -809202548, now seen corresponding path program 2 times [2025-04-24 20:34:38,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:38,755 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544381095] [2025-04-24 20:34:38,758 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:34:38,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:38,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:38,760 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 20:34:38,762 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 20:34:38,836 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-04-24 20:34:38,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 35 of 50 statements. [2025-04-24 20:34:38,862 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:34:38,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:38,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-24 20:34:38,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:38,938 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-24 20:34:38,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:34:38,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:38,938 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544381095] [2025-04-24 20:34:38,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544381095] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:34:38,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:34:38,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:34:38,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842805338] [2025-04-24 20:34:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:38,939 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:34:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:38,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:34:38,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:34:38,939 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:38,939 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:38,939 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 20:34:38,939 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:38,939 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:38,939 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:39,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:39,520 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:39,520 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:39,527 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 20:34:39,721 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:39,721 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:39,721 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:39,721 INFO L139 ounterexampleChecker]: Examining path program with hash 1556547667, occurence #1 [2025-04-24 20:34:39,721 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:34:39,721 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:39,722 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash -559247255, now seen corresponding path program 1 times [2025-04-24 20:34:39,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:39,722 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333549390] [2025-04-24 20:34:39,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:34:39,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:39,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:39,724 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 20:34:39,725 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 20:34:39,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-04-24 20:34:39,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-24 20:34:39,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:34:39,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:39,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-24 20:34:39,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-24 20:34:39,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:34:39,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:39,853 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333549390] [2025-04-24 20:34:39,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333549390] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:34:39,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:34:39,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:34:39,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093025026] [2025-04-24 20:34:39,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:39,854 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:34:39,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:39,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:34:39,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:34:39,854 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:39,854 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:39,855 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 20:34:39,855 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:39,855 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:39,855 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:39,855 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:40,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:40,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:40,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:40,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:40,527 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 20:34:40,719 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:40,720 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:40,720 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:40,720 INFO L139 ounterexampleChecker]: Examining path program with hash -1296384341, occurence #1 [2025-04-24 20:34:40,720 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:34:40,720 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:40,720 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:40,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1060180837, now seen corresponding path program 2 times [2025-04-24 20:34:40,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:40,721 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171390197] [2025-04-24 20:34:40,721 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:34:40,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:40,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:40,723 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 20:34:40,723 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 20:34:40,787 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 41 statements into 2 equivalence classes. [2025-04-24 20:34:40,812 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 31 of 41 statements. [2025-04-24 20:34:40,812 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:34:40,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:40,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 20:34:40,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:40,899 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-24 20:34:40,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:34:40,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:40,899 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171390197] [2025-04-24 20:34:40,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171390197] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:34:40,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:34:40,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:34:40,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204932186] [2025-04-24 20:34:40,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:40,900 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:34:40,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:40,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:34:40,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:34:40,900 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:40,900 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:40,900 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 20:34:40,900 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:40,900 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:40,900 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:40,900 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:40,901 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:41,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:41,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:41,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,067 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 20:34:41,260 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:41,261 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:41,261 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:41,261 INFO L139 ounterexampleChecker]: Examining path program with hash -1296384341, occurence #2 [2025-04-24 20:34:41,261 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:34:41,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:34:41,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-24 20:34:41,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 20:34:41,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:34:41,261 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-24 20:34:41,261 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 20:34:41,261 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2025-04-24 20:34:41,261 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 20:34:41,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,261 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:34:41,261 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:41,262 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:41,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1169729270, now seen corresponding path program 1 times [2025-04-24 20:34:41,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:41,263 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1257886247] [2025-04-24 20:34:41,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:34:41,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:41,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:41,265 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 20:34:41,266 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 20:34:41,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-04-24 20:34:41,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-04-24 20:34:41,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:34:41,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:41,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 20:34:41,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-24 20:34:41,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:34:41,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:41,445 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257886247] [2025-04-24 20:34:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257886247] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:34:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:34:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:34:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384671047] [2025-04-24 20:34:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:41,446 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:34:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:41,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:34:41,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:34:41,446 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:41,446 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:41,446 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:34:41,446 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:41,446 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,446 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,446 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:41,446 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,446 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:41,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:41,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:41,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-24 20:34:41,785 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 [2025-04-24 20:34:41,785 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:41,785 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:41,785 INFO L139 ounterexampleChecker]: Examining path program with hash -1296384341, occurence #3 [2025-04-24 20:34:41,785 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:34:41,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:34:41,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-24 20:34:41,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:34:41,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-24 20:34:41,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 20:34:41,785 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:34:41,786 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 20:34:41,786 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 20:34:41,786 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:41,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 20:34:41,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:41,786 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:34:41,786 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:41,786 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:41,786 INFO L85 PathProgramCache]: Analyzing trace with hash 38442767, now seen corresponding path program 1 times [2025-04-24 20:34:41,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:41,786 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805987275] [2025-04-24 20:34:41,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:34:41,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:41,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:41,789 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 20:34:41,790 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 20:34:41,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-24 20:34:41,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 20:34:41,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:34:41,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:41,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 20:34:41,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-24 20:34:41,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:34:41,952 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:41,953 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805987275] [2025-04-24 20:34:41,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805987275] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:34:41,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:34:41,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:34:41,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892290522] [2025-04-24 20:34:41,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:41,954 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:34:41,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:41,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:34:41,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:34:41,955 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:41,955 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:41,955 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:34:41,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:41,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:41,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:41,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:42,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:42,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:42,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,091 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,099 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 20:34:42,291 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:42,291 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:42,291 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:42,291 INFO L139 ounterexampleChecker]: Examining path program with hash -1296384341, occurence #4 [2025-04-24 20:34:42,291 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:34:42,291 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:34:42,291 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,291 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:34:42,292 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,292 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 20:34:42,292 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,292 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:34:42,292 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,292 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:34:42,292 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,292 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-24 20:34:42,292 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,292 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 20:34:42,292 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,292 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 20:34:42,292 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,292 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2025-04-24 20:34:42,292 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,292 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:34:42,292 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:42,292 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:42,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1188665558, now seen corresponding path program 1 times [2025-04-24 20:34:42,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:42,292 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789695160] [2025-04-24 20:34:42,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:34:42,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:42,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:42,294 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 20:34:42,295 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 20:34:42,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-04-24 20:34:42,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-04-24 20:34:42,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:34:42,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:42,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-24 20:34:42,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-24 20:34:42,437 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:34:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-24 20:34:42,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:42,479 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789695160] [2025-04-24 20:34:42,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789695160] provided 1 perfect and 1 imperfect interpolant sequences [2025-04-24 20:34:42,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 20:34:42,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-04-24 20:34:42,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698737097] [2025-04-24 20:34:42,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:34:42,479 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 20:34:42,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:42,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 20:34:42,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-04-24 20:34:42,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:42,480 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:42,480 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:42,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:42,622 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 20:34:42,815 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:42,815 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:42,815 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:42,815 INFO L139 ounterexampleChecker]: Examining path program with hash -1296384341, occurence #5 [2025-04-24 20:34:42,815 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:34:42,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:34:42,815 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:34:42,815 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-24 20:34:42,815 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 20:34:42,815 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-24 20:34:42,815 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-24 20:34:42,815 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 20:34:42,815 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,816 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 20:34:42,816 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:42,816 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-24 20:34:42,816 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:42,816 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:34:42,816 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:42,816 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -602244183, now seen corresponding path program 1 times [2025-04-24 20:34:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:42,816 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121359659] [2025-04-24 20:34:42,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:34:42,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:42,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:42,818 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 20:34:42,818 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 20:34:42,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-24 20:34:42,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-24 20:34:42,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:34:42,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:42,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-24 20:34:42,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:43,049 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:34:43,049 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:34:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:34:43,361 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:43,362 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121359659] [2025-04-24 20:34:43,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121359659] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:34:43,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 20:34:43,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-04-24 20:34:43,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423077290] [2025-04-24 20:34:43,362 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 20:34:43,362 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-24 20:34:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:43,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-24 20:34:43,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-24 20:34:43,362 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:43,362 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:43,363 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 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 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:43,363 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:43,670 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:43,671 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:34:43,679 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 20:34:43,871 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 [2025-04-24 20:34:43,872 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 20:34:43,872 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:34:43,872 INFO L139 ounterexampleChecker]: Examining path program with hash -1296384341, occurence #6 [2025-04-24 20:34:43,872 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 20:34:43,872 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 20:34:43,872 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 20:34:43,872 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 20:34:43,872 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:34:43,872 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 20:34:43,872 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 20:34:43,872 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2025-04-24 20:34:43,872 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:34:43,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2025-04-24 20:34:43,872 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:34:43,872 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:34:43,872 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:34:43,872 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:34:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash 955262896, now seen corresponding path program 2 times [2025-04-24 20:34:43,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 20:34:43,873 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145498089] [2025-04-24 20:34:43,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:34:43,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:34:43,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:34:43,876 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 20:34:43,876 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 20:34:43,961 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 2 equivalence classes. [2025-04-24 20:34:44,030 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 46 of 46 statements. [2025-04-24 20:34:44,030 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:34:44,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:34:44,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-04-24 20:34:44,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:34:44,640 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 20:34:44,641 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 31 [2025-04-24 20:34:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 20:34:44,699 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:34:44,990 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-04-24 20:34:44,990 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 13 [2025-04-24 20:34:45,593 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 20:34:45,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 20:34:45,593 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145498089] [2025-04-24 20:34:45,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145498089] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:34:45,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 20:34:45,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 28 [2025-04-24 20:34:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303062328] [2025-04-24 20:34:45,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 20:34:45,594 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-04-24 20:34:45,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 20:34:45,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-04-24 20:34:45,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2025-04-24 20:34:45,594 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:34:45,594 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:34:45,594 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.2142857142857144) internal successors, (90), 28 states have internal predecessors, (90), 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 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 20:34:45,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.