./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 42d87675 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-send-receive-alt.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 d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-24 23:27:10,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 23:27:10,832 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 23:27:10,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 23:27:10,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 23:27:10,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 23:27:10,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 23:27:10,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 23:27:10,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 23:27:10,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 23:27:10,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 23:27:10,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 23:27:10,862 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 23:27:10,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 23:27:10,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 23:27:10,862 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 23:27:10,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 23:27:10,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 23:27:10,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 23:27:10,863 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 23:27:10,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:27:10,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 23:27:10,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 23:27:10,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 23:27:10,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 23:27:10,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:27:10,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 23:27:10,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 23:27:10,865 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 23:27:10,865 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 -> d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-04-24 23:27:11,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 23:27:11,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 23:27:11,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 23:27:11,101 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 23:27:11,101 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 23:27:11,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2025-04-24 23:27:12,335 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6530bddf2/ed97cff5e9bf4f50b4057d847a9cf4a9/FLAGf263d6328 [2025-04-24 23:27:12,512 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 23:27:12,512 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2025-04-24 23:27:12,521 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6530bddf2/ed97cff5e9bf4f50b4057d847a9cf4a9/FLAGf263d6328 [2025-04-24 23:27:14,386 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6530bddf2/ed97cff5e9bf4f50b4057d847a9cf4a9 [2025-04-24 23:27:14,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 23:27:14,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 23:27:14,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 23:27:14,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 23:27:14,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 23:27:14,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16aadb18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14, skipping insertion in model container [2025-04-24 23:27:14,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 23:27:14,567 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-send-receive-alt.wvr.c[2676,2689] [2025-04-24 23:27:14,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 23:27:14,586 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 23:27:14,615 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-send-receive-alt.wvr.c[2676,2689] [2025-04-24 23:27:14,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 23:27:14,630 INFO L204 MainTranslator]: Completed translation [2025-04-24 23:27:14,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14 WrapperNode [2025-04-24 23:27:14,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 23:27:14,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 23:27:14,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 23:27:14,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 23:27:14,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,654 INFO L138 Inliner]: procedures = 23, calls = 27, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 134 [2025-04-24 23:27:14,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 23:27:14,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 23:27:14,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 23:27:14,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 23:27:14,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,667 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 23:27:14,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 23:27:14,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 23:27:14,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 23:27:14,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (1/1) ... [2025-04-24 23:27:14,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:27:14,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:14,706 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 23:27:14,710 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 23:27:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 23:27:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 23:27:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 23:27:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 23:27:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 23:27:14,725 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 23:27:14,820 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 23:27:14,822 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 23:27:15,007 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 23:27:15,008 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 23:27:15,165 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 23:27:15,166 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-24 23:27:15,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 11:27:15 BoogieIcfgContainer [2025-04-24 23:27:15,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 23:27:15,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 23:27:15,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 23:27:15,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 23:27:15,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 11:27:14" (1/3) ... [2025-04-24 23:27:15,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e61cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 11:27:15, skipping insertion in model container [2025-04-24 23:27:15,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:27:14" (2/3) ... [2025-04-24 23:27:15,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e61cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 11:27:15, skipping insertion in model container [2025-04-24 23:27:15,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 11:27:15" (3/3) ... [2025-04-24 23:27:15,172 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2025-04-24 23:27:15,182 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 23:27:15,183 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-send-receive-alt.wvr.c that has 3 procedures, 27 locations, 30 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-24 23:27:15,183 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 23:27:15,214 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 23:27:15,250 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 23:27:15,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 23:27:15,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:15,253 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 23:27:15,255 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 23:27:15,313 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 23:27:15,320 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 23:27:15,328 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;@e4740f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 23:27:15,328 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 23:27:15,362 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:15,365 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:15,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2128902422, now seen corresponding path program 1 times [2025-04-24 23:27:15,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:15,370 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990227077] [2025-04-24 23:27:15,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:27:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:15,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-24 23:27:15,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-24 23:27:15,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:27:15,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:15,491 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 23:27:15,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:15,492 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990227077] [2025-04-24 23:27:15,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990227077] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:27:15,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:27:15,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 23:27:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607052971] [2025-04-24 23:27:15,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:27:15,497 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-24 23:27:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:15,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-24 23:27:15,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-24 23:27:15,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:15,512 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:15,513 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:27:15,513 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:15,570 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:15,570 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 23:27:15,570 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:15,571 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1493925567, now seen corresponding path program 1 times [2025-04-24 23:27:15,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:15,571 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876311219] [2025-04-24 23:27:15,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:27:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:15,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-24 23:27:15,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-24 23:27:15,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:27:15,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:15,774 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 23:27:15,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:15,774 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876311219] [2025-04-24 23:27:15,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876311219] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:27:15,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:27:15,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 23:27:15,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171872314] [2025-04-24 23:27:15,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:27:15,775 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 23:27:15,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:15,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 23:27:15,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 23:27:15,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:15,776 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:15,776 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:27:15,776 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:15,776 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:15,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:15,842 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:15,842 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 23:27:15,842 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:15,842 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2124353199, now seen corresponding path program 1 times [2025-04-24 23:27:15,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:15,843 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619330984] [2025-04-24 23:27:15,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:27:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:15,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-24 23:27:15,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-24 23:27:15,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:27:15,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:16,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:16,033 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619330984] [2025-04-24 23:27:16,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619330984] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:27:16,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:27:16,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 23:27:16,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839309457] [2025-04-24 23:27:16,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:27:16,033 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 23:27:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:16,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 23:27:16,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 23:27:16,034 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,034 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:16,035 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 23:27:16,035 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,035 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:16,035 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,097 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,097 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:16,098 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:16,098 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 23:27:16,098 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:16,098 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:16,098 INFO L85 PathProgramCache]: Analyzing trace with hash -769624382, now seen corresponding path program 1 times [2025-04-24 23:27:16,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:16,098 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387520761] [2025-04-24 23:27:16,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:27:16,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:16,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-24 23:27:16,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-24 23:27:16,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:27:16,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:16,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:16,298 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387520761] [2025-04-24 23:27:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387520761] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:27:16,298 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113807723] [2025-04-24 23:27:16,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:27:16,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:16,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:16,300 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 23:27:16,302 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 23:27:16,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-24 23:27:16,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-24 23:27:16,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:27:16,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:16,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 23:27:16,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:27:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:16,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:27:16,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:16,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113807723] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:27:16,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:27:16,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2025-04-24 23:27:16,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16662861] [2025-04-24 23:27:16,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:27:16,601 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-24 23:27:16,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:16,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-24 23:27:16,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-04-24 23:27:16,604 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,604 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:16,604 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) 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 23:27:16,604 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,604 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:16,604 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:16,604 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,739 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:16,739 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:16,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:16,743 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:16,749 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 23:27:16,943 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:16,944 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:16,944 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:16,944 INFO L85 PathProgramCache]: Analyzing trace with hash -288616177, now seen corresponding path program 2 times [2025-04-24 23:27:16,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:16,944 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056176699] [2025-04-24 23:27:16,944 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:27:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:16,952 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-04-24 23:27:16,966 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-04-24 23:27:16,967 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:27:16,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-24 23:27:17,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:17,044 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056176699] [2025-04-24 23:27:17,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056176699] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:27:17,044 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805181450] [2025-04-24 23:27:17,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:27:17,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:17,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:17,046 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 23:27:17,048 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 23:27:17,088 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-04-24 23:27:17,107 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-04-24 23:27:17,107 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:27:17,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:17,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-24 23:27:17,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:27:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-24 23:27:17,138 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 23:27:17,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805181450] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:27:17,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 23:27:17,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-04-24 23:27:17,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574961909] [2025-04-24 23:27:17,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:27:17,141 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 23:27:17,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:17,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 23:27:17,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-04-24 23:27:17,142 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,142 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:17,142 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 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 23:27:17,142 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,142 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:17,142 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:17,142 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:17,142 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:17,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:17,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:17,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:17,187 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 23:27:17,382 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:17,382 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:17,382 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:17,382 INFO L85 PathProgramCache]: Analyzing trace with hash -960800468, now seen corresponding path program 3 times [2025-04-24 23:27:17,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:17,383 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140402885] [2025-04-24 23:27:17,383 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:27:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:17,392 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 2 equivalence classes. [2025-04-24 23:27:17,406 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 23:27:17,406 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 23:27:17,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-24 23:27:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:17,543 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140402885] [2025-04-24 23:27:17,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140402885] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:27:17,543 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053990166] [2025-04-24 23:27:17,543 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:27:17,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:17,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:17,545 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 23:27:17,547 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 23:27:17,591 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 2 equivalence classes. [2025-04-24 23:27:17,615 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 23:27:17,615 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 23:27:17,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:17,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 23:27:17,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:27:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-24 23:27:17,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:27:17,754 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:27:17,755 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 40 treesize of output 24 [2025-04-24 23:27:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-24 23:27:17,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053990166] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:27:17,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:27:17,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2025-04-24 23:27:17,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964631802] [2025-04-24 23:27:17,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:27:17,838 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-24 23:27:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:17,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-24 23:27:17,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-04-24 23:27:17,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,839 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:17,839 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 23:27:17,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:17,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:17,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:17,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:17,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,943 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:17,944 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:17,944 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:17,944 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:17,944 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:17,944 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:17,950 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 23:27:18,145 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:18,145 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:18,146 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:18,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1400499236, now seen corresponding path program 4 times [2025-04-24 23:27:18,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:18,146 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144705673] [2025-04-24 23:27:18,146 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:27:18,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:18,159 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-04-24 23:27:18,173 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-04-24 23:27:18,173 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 23:27:18,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 23:27:18,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:18,396 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144705673] [2025-04-24 23:27:18,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144705673] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:27:18,396 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36155016] [2025-04-24 23:27:18,396 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:27:18,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:18,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:18,398 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 23:27:18,400 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 23:27:18,441 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-04-24 23:27:18,464 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-04-24 23:27:18,464 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 23:27:18,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:18,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-24 23:27:18,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:27:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 23:27:18,658 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:27:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 12 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 23:27:18,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36155016] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:27:18,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:27:18,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-04-24 23:27:18,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010651132] [2025-04-24 23:27:18,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:27:18,832 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-04-24 23:27:18,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:18,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-04-24 23:27:18,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2025-04-24 23:27:18,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:18,833 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:18,833 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.954545454545454) internal successors, (109), 21 states have internal predecessors, (109), 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 23:27:18,833 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:18,833 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:18,833 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:18,833 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:18,833 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:18,833 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:18,833 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:18,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:18,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:18,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:18,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:18,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:18,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:18,936 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:18,942 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 23:27:19,136 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,SelfDestructingSolverStorable6 [2025-04-24 23:27:19,136 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:19,137 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash -580098692, now seen corresponding path program 5 times [2025-04-24 23:27:19,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:19,137 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110564419] [2025-04-24 23:27:19,137 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:27:19,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:19,149 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 54 statements into 4 equivalence classes. [2025-04-24 23:27:19,159 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 54 statements. [2025-04-24 23:27:19,162 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:27:19,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-24 23:27:19,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:19,231 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110564419] [2025-04-24 23:27:19,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110564419] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:27:19,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:27:19,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 23:27:19,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447942281] [2025-04-24 23:27:19,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:27:19,232 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 23:27:19,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:19,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 23:27:19,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 23:27:19,233 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:19,233 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:19,233 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 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:19,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:19,291 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:19,291 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:19,291 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:19,291 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:19,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:19,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:19,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:19,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:19,292 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-24 23:27:19,292 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:19,292 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1345623822, now seen corresponding path program 1 times [2025-04-24 23:27:19,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:19,293 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361799089] [2025-04-24 23:27:19,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:27:19,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:19,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-04-24 23:27:19,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-04-24 23:27:19,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:27:19,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:19,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:19,547 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361799089] [2025-04-24 23:27:19,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361799089] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:27:19,547 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751267689] [2025-04-24 23:27:19,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:27:19,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:19,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:19,550 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 23:27:19,552 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 23:27:19,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-04-24 23:27:19,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-04-24 23:27:19,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:27:19,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:19,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-24 23:27:19,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:27:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:19,860 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:27:20,083 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:20,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751267689] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:27:20,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:27:20,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31 [2025-04-24 23:27:20,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107795918] [2025-04-24 23:27:20,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:27:20,084 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-04-24 23:27:20,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:20,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-04-24 23:27:20,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=776, Unknown=0, NotChecked=0, Total=992 [2025-04-24 23:27:20,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:20,084 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:20,085 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.125) internal successors, (132), 31 states have internal predecessors, (132), 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 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:20,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:20,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:20,265 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 23:27:20,459 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:20,459 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:20,460 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:20,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1579434661, now seen corresponding path program 2 times [2025-04-24 23:27:20,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:20,460 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939776584] [2025-04-24 23:27:20,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:27:20,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:20,468 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-04-24 23:27:20,511 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-04-24 23:27:20,511 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:27:20,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:23,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:23,293 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939776584] [2025-04-24 23:27:23,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939776584] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:27:23,293 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916259715] [2025-04-24 23:27:23,294 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:27:23,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:23,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:23,295 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 23:27:23,297 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 23:27:23,340 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-04-24 23:27:23,371 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-04-24 23:27:23,371 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:27:23,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:23,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-04-24 23:27:23,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:27:23,540 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 23 treesize of output 1 [2025-04-24 23:27:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:24,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:27:26,137 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 281 treesize of output 251 [2025-04-24 23:27:26,273 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:27:26,273 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 2672 treesize of output 1790 [2025-04-24 23:27:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 1 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:27:56,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916259715] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:27:56,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:27:56,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 53 [2025-04-24 23:27:56,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7703816] [2025-04-24 23:27:56,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:27:56,096 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2025-04-24 23:27:56,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:27:56,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2025-04-24 23:27:56,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=442, Invalid=2420, Unknown=0, NotChecked=0, Total=2862 [2025-04-24 23:27:56,098 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:56,098 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:27:56,098 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.2962962962962963) internal successors, (178), 53 states have internal predecessors, (178), 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 23:27:56,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:56,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:56,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:56,099 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:56,099 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:56,099 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:56,099 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:56,099 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:56,099 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:56,099 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:57,493 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:27:57,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:27:57,500 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 23:27:57,695 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,SelfDestructingSolverStorable9 [2025-04-24 23:27:57,696 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:27:57,696 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:27:57,696 INFO L85 PathProgramCache]: Analyzing trace with hash 510152078, now seen corresponding path program 3 times [2025-04-24 23:27:57,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:27:57,696 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818397767] [2025-04-24 23:27:57,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:27:57,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:27:57,704 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-04-24 23:27:57,751 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 66 of 70 statements. [2025-04-24 23:27:57,751 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-04-24 23:27:57,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-04-24 23:27:58,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:27:58,416 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818397767] [2025-04-24 23:27:58,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818397767] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:27:58,417 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683906241] [2025-04-24 23:27:58,417 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:27:58,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:27:58,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:27:58,419 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 23:27:58,420 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 23:27:58,468 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-04-24 23:27:58,639 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 66 of 70 statements. [2025-04-24 23:27:58,639 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-04-24 23:27:58,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:27:58,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 60 conjuncts are in the unsatisfiable core [2025-04-24 23:27:58,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:27:58,744 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 19 treesize of output 1 [2025-04-24 23:27:59,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:27:59,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:27:59,264 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:27:59,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:27:59,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:27:59,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:27:59,268 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:27:59,269 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 26 [2025-04-24 23:27:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 14 proven. 68 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-04-24 23:27:59,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:28:02,287 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 190 treesize of output 170 [2025-04-24 23:28:02,303 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,306 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,306 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,306 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,308 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,309 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,309 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,309 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,311 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,311 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,312 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,314 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,314 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,317 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:02,464 INFO L325 Elim1Store]: treesize reduction 10, result has 94.4 percent of original size [2025-04-24 23:28:02,464 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 1868 treesize of output 1473 [2025-04-24 23:28:08,094 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 191 treesize of output 171 [2025-04-24 23:28:08,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:08,111 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,112 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,112 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,112 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,112 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,113 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,113 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,113 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:08,115 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,116 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,116 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,117 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,117 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:08,118 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,118 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:08,119 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:08,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:08,121 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 1924 treesize of output 1363 [2025-04-24 23:28:08,992 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-04-24 23:28:08,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683906241] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:28:08,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:28:08,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 17] total 40 [2025-04-24 23:28:08,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065069079] [2025-04-24 23:28:08,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:28:08,993 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-04-24 23:28:08,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:28:08,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-04-24 23:28:08,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=1320, Unknown=0, NotChecked=0, Total=1640 [2025-04-24 23:28:08,994 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:08,994 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:28:08,994 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.170731707317073) internal successors, (171), 40 states have internal predecessors, (171), 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 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:08,994 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:10,877 WARN L532 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-04-24 23:28:11,988 WARN L532 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:12,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:12,958 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:28:12,964 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 23:28:13,158 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:28:13,158 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:28:13,159 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:28:13,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1986847573, now seen corresponding path program 4 times [2025-04-24 23:28:13,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:28:13,159 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055028005] [2025-04-24 23:28:13,159 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:28:13,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:28:13,170 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 97 statements into 2 equivalence classes. [2025-04-24 23:28:13,182 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-04-24 23:28:13,184 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 23:28:13,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:13,384 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 88 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-04-24 23:28:13,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:28:13,384 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055028005] [2025-04-24 23:28:13,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055028005] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:28:13,384 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829265641] [2025-04-24 23:28:13,384 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:28:13,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:28:13,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:28:13,386 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 23:28:13,388 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 23:28:13,438 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 97 statements into 2 equivalence classes. [2025-04-24 23:28:13,481 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-04-24 23:28:13,481 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 23:28:13,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:13,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-24 23:28:13,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:28:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 88 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-04-24 23:28:13,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:28:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 163 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-04-24 23:28:13,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829265641] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:28:13,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:28:13,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 18] total 21 [2025-04-24 23:28:13,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108608483] [2025-04-24 23:28:13,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:28:13,915 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-04-24 23:28:13,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:28:13,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-04-24 23:28:13,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=279, Unknown=0, NotChecked=0, Total=462 [2025-04-24 23:28:13,915 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:13,915 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:28:13,916 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.363636363636363) internal successors, (118), 21 states have internal predecessors, (118), 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 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:28:13,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:28:13,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:13,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-04-24 23:28:14,183 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:28:14,184 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:28:14,184 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:28:14,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1334399492, now seen corresponding path program 5 times [2025-04-24 23:28:14,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:28:14,184 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751838184] [2025-04-24 23:28:14,184 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:28:14,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:28:14,192 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 102 statements into 8 equivalence classes. [2025-04-24 23:28:14,338 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 102 of 102 statements. [2025-04-24 23:28:14,339 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-04-24 23:28:14,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 9 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:28:20,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:28:20,246 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751838184] [2025-04-24 23:28:20,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751838184] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:28:20,247 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699515111] [2025-04-24 23:28:20,247 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:28:20,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:28:20,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:28:20,249 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 23:28:20,249 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 23:28:20,310 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 102 statements into 8 equivalence classes. [2025-04-24 23:28:20,498 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 102 of 102 statements. [2025-04-24 23:28:20,498 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-04-24 23:28:20,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:20,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 74 conjuncts are in the unsatisfiable core [2025-04-24 23:28:20,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:28:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 27 proven. 209 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-04-24 23:28:21,950 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:28:24,165 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:28:24,166 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 312 treesize of output 864 [2025-04-24 23:28:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-04-24 23:28:26,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699515111] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:28:26,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:28:26,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 23, 20] total 74 [2025-04-24 23:28:26,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731399310] [2025-04-24 23:28:26,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:28:26,022 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2025-04-24 23:28:26,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:28:26,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2025-04-24 23:28:26,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=766, Invalid=4784, Unknown=0, NotChecked=0, Total=5550 [2025-04-24 23:28:26,024 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:26,024 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:28:26,024 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.68) internal successors, (276), 74 states have internal predecessors, (276), 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 23:28:26,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:26,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:26,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:26,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:26,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:26,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:26,025 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:26,025 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:26,025 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:26,025 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:26,025 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:28:26,025 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:26,025 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:28,367 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:28:28,375 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 23:28:28,568 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,SelfDestructingSolverStorable12 [2025-04-24 23:28:28,568 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:28:28,568 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:28:28,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1717549733, now seen corresponding path program 6 times [2025-04-24 23:28:28,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:28:28,568 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60216398] [2025-04-24 23:28:28,568 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 23:28:28,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:28:28,579 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 151 statements into 10 equivalence classes. [2025-04-24 23:28:28,676 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 151 of 151 statements. [2025-04-24 23:28:28,677 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-04-24 23:28:28,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 322 proven. 306 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 23:28:29,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:28:29,327 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60216398] [2025-04-24 23:28:29,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60216398] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:28:29,327 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625915989] [2025-04-24 23:28:29,327 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 23:28:29,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:28:29,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:28:29,329 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 23:28:29,330 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 23:28:29,389 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 151 statements into 10 equivalence classes. [2025-04-24 23:28:30,414 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 151 of 151 statements. [2025-04-24 23:28:30,414 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-04-24 23:28:30,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:30,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-04-24 23:28:30,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:28:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 480 proven. 151 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:28:31,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:28:32,174 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 525 proven. 106 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:28:32,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625915989] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:28:32,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:28:32,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 31, 31] total 89 [2025-04-24 23:28:32,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388090374] [2025-04-24 23:28:32,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:28:32,175 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2025-04-24 23:28:32,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:28:32,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2025-04-24 23:28:32,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2005, Invalid=6005, Unknown=0, NotChecked=0, Total=8010 [2025-04-24 23:28:32,177 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:32,177 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:28:32,178 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 4.411111111111111) internal successors, (397), 89 states have internal predecessors, (397), 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 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:28:32,178 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:32,693 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:28:32,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:28:32,695 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:28:32,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-04-24 23:28:32,896 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:28:32,896 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:28:32,896 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:28:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash -326105851, now seen corresponding path program 7 times [2025-04-24 23:28:32,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:28:32,897 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420096996] [2025-04-24 23:28:32,897 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 23:28:32,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:28:32,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-04-24 23:28:32,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-04-24 23:28:32,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:28:32,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:43,646 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 217 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:28:43,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:28:43,646 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420096996] [2025-04-24 23:28:43,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420096996] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:28:43,646 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123139434] [2025-04-24 23:28:43,646 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 23:28:43,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:28:43,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:28:43,650 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 23:28:43,651 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 23:28:43,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-04-24 23:28:43,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-04-24 23:28:43,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:28:43,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:28:43,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 143 conjuncts are in the unsatisfiable core [2025-04-24 23:28:43,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:28:50,963 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,964 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,965 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:50,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,967 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,969 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,969 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,971 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,972 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,972 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,973 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,974 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,974 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,975 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,976 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,976 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,982 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:50,982 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,985 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:50,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,991 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:50,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-24 23:28:50,997 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-24 23:28:51,003 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:28:51,004 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 105 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 216 treesize of output 83 [2025-04-24 23:28:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 8 proven. 654 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:28:51,015 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:29:04,825 INFO L325 Elim1Store]: treesize reduction 1610, result has 42.3 percent of original size [2025-04-24 23:29:04,825 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 30 select indices, 30 select index equivalence classes, 0 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 435 case distinctions, treesize of input 511 treesize of output 1294 [2025-04-24 23:29:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 1 proven. 661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:29:08,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123139434] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:29:08,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:29:08,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 144 [2025-04-24 23:29:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108023079] [2025-04-24 23:29:08,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:29:08,716 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2025-04-24 23:29:08,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:29:08,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2025-04-24 23:29:08,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3006, Invalid=17874, Unknown=0, NotChecked=0, Total=20880 [2025-04-24 23:29:08,721 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:29:08,721 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:29:08,721 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 3.103448275862069) internal successors, (450), 144 states have internal predecessors, (450), 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 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:29:08,721 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:29:08,722 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:29:08,722 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:29:08,722 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:29:08,722 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:29:08,722 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:29:08,722 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:29:08,722 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:29:12,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:29:12,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:29:12,646 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 23:29:12,839 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,SelfDestructingSolverStorable14 [2025-04-24 23:29:12,839 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:29:12,839 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:29:12,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1479067803, now seen corresponding path program 8 times [2025-04-24 23:29:12,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:29:12,840 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970127514] [2025-04-24 23:29:12,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:29:12,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:29:12,852 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 155 statements into 2 equivalence classes. [2025-04-24 23:29:12,929 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-04-24 23:29:12,929 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:29:12,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:29:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 695 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:29:56,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:29:56,101 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970127514] [2025-04-24 23:29:56,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970127514] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:29:56,101 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648907601] [2025-04-24 23:29:56,101 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:29:56,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:29:56,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:29:56,103 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:29:56,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-24 23:29:56,175 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 155 statements into 2 equivalence classes. [2025-04-24 23:29:56,239 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-04-24 23:29:56,239 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:29:56,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:29:56,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 142 conjuncts are in the unsatisfiable core [2025-04-24 23:29:56,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:30:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 119 proven. 575 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 23:30:01,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:30:11,158 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:30:11,159 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 30 select indices, 30 select index equivalence classes, 0 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 435 case distinctions, treesize of input 516 treesize of output 2334 [2025-04-24 23:30:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 1 proven. 541 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-04-24 23:30:21,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648907601] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:30:21,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:30:21,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 48, 32] total 129 [2025-04-24 23:30:21,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932650172] [2025-04-24 23:30:21,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:30:21,674 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2025-04-24 23:30:21,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:30:21,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2025-04-24 23:30:21,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1319, Invalid=15451, Unknown=0, NotChecked=0, Total=16770 [2025-04-24 23:30:21,678 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:21,678 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:30:21,679 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 3.3923076923076922) internal successors, (441), 129 states have internal predecessors, (441), 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 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:21,679 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:30:21,680 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:30:21,680 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:30:21,680 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:30:31,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2025-04-24 23:30:31,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-04-24 23:30:31,260 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-04-24 23:30:31,260 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:30:31,260 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:30:31,261 INFO L85 PathProgramCache]: Analyzing trace with hash -84274785, now seen corresponding path program 9 times [2025-04-24 23:30:31,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:30:31,261 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317205459] [2025-04-24 23:30:31,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:30:31,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:30:31,271 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 10 equivalence classes. [2025-04-24 23:30:31,415 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 159 of 159 statements. [2025-04-24 23:30:31,415 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-04-24 23:30:31,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:30:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 7 proven. 298 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2025-04-24 23:30:31,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:30:31,826 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317205459] [2025-04-24 23:30:31,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317205459] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:30:31,826 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252775707] [2025-04-24 23:30:31,826 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:30:31,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:30:31,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:30:31,828 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:30:31,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-04-24 23:30:31,901 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 10 equivalence classes. [2025-04-24 23:30:34,330 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 159 of 159 statements. [2025-04-24 23:30:34,330 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-04-24 23:30:34,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:30:34,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-04-24 23:30:34,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:30:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 7 proven. 282 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2025-04-24 23:30:34,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:30:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 4 proven. 543 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2025-04-24 23:30:35,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252775707] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:30:35,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:30:35,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 32] total 37 [2025-04-24 23:30:35,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107663572] [2025-04-24 23:30:35,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:30:35,001 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-04-24 23:30:35,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:30:35,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-04-24 23:30:35,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=544, Invalid=862, Unknown=0, NotChecked=0, Total=1406 [2025-04-24 23:30:35,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:35,002 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:30:35,003 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.184210526315789) internal successors, (197), 37 states have internal predecessors, (197), 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 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2025-04-24 23:30:35,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:30:36,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:30:36,013 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:30:36,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-04-24 23:30:36,213 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-04-24 23:30:36,214 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:30:36,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:30:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1788925632, now seen corresponding path program 10 times [2025-04-24 23:30:36,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:30:36,214 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817321789] [2025-04-24 23:30:36,214 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:30:36,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:30:36,225 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 164 statements into 2 equivalence classes. [2025-04-24 23:30:36,251 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 164 of 164 statements. [2025-04-24 23:30:36,251 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 23:30:36,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:30:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 539 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2025-04-24 23:30:38,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:30:38,871 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817321789] [2025-04-24 23:30:38,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817321789] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:30:38,871 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562142689] [2025-04-24 23:30:38,871 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:30:38,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:30:38,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:30:38,873 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:30:38,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-04-24 23:30:38,943 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 164 statements into 2 equivalence classes. [2025-04-24 23:30:38,998 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 164 of 164 statements. [2025-04-24 23:30:38,998 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 23:30:38,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:30:39,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 151 conjuncts are in the unsatisfiable core [2025-04-24 23:30:39,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:30:42,959 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 119 proven. 670 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 23:30:42,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:30:51,635 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:30:51,636 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 32 select indices, 32 select index equivalence classes, 0 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 496 case distinctions, treesize of input 551 treesize of output 2650 [2025-04-24 23:31:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 619 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2025-04-24 23:31:03,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562142689] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:31:03,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:31:03,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 51, 34] total 100 [2025-04-24 23:31:03,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760249356] [2025-04-24 23:31:03,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:31:03,980 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2025-04-24 23:31:03,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:03,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2025-04-24 23:31:03,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1520, Invalid=8580, Unknown=0, NotChecked=0, Total=10100 [2025-04-24 23:31:03,982 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:03,982 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:03,983 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 3.9207920792079207) internal successors, (396), 100 states have internal predecessors, (396), 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 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:31:03,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:03,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:11,405 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:11,405 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:31:11,405 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:11,405 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:11,405 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:11,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:31:11,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-04-24 23:31:11,606 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-04-24 23:31:11,606 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:31:11,607 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:11,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1856054410, now seen corresponding path program 11 times [2025-04-24 23:31:11,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:11,607 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197989986] [2025-04-24 23:31:11,607 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:31:11,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:11,619 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 196 statements into 12 equivalence classes. [2025-04-24 23:31:11,722 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) and asserted 196 of 196 statements. [2025-04-24 23:31:11,722 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2025-04-24 23:31:11,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 586 proven. 581 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 23:31:12,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:12,616 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197989986] [2025-04-24 23:31:12,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197989986] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:31:12,616 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716288558] [2025-04-24 23:31:12,616 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:31:12,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:31:12,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:31:12,617 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:31:12,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-04-24 23:31:12,697 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 196 statements into 12 equivalence classes. [2025-04-24 23:31:13,559 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) and asserted 196 of 196 statements. [2025-04-24 23:31:13,560 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2025-04-24 23:31:13,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:13,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-04-24 23:31:13,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:31:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 984 proven. 182 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-24 23:31:14,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:31:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 781 proven. 385 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-24 23:31:15,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716288558] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:31:15,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:31:15,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 116 [2025-04-24 23:31:15,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391047806] [2025-04-24 23:31:15,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:31:15,848 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2025-04-24 23:31:15,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:15,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2025-04-24 23:31:15,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2589, Invalid=10983, Unknown=0, NotChecked=0, Total=13572 [2025-04-24 23:31:15,853 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:15,853 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:15,853 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 117 states have (on average 4.247863247863248) internal successors, (497), 116 states have internal predecessors, (497), 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 23:31:15,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:15,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:31:15,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:15,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:15,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:15,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:15,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:31:15,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:15,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:31:15,994 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:16,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-04-24 23:31:16,195 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:31:16,195 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:31:16,195 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:16,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1916941033, now seen corresponding path program 12 times [2025-04-24 23:31:16,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:16,196 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087054332] [2025-04-24 23:31:16,196 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 23:31:16,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:16,207 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 197 statements into 12 equivalence classes. [2025-04-24 23:31:16,306 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 197 of 197 statements. [2025-04-24 23:31:16,306 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-04-24 23:31:16,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:17,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 920 proven. 269 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:31:17,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:17,384 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087054332] [2025-04-24 23:31:17,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087054332] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:31:17,384 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964048757] [2025-04-24 23:31:17,384 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 23:31:17,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:31:17,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:31:17,386 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:31:17,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-04-24 23:31:17,469 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 197 statements into 12 equivalence classes. [2025-04-24 23:31:19,224 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 197 of 197 statements. [2025-04-24 23:31:19,225 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-04-24 23:31:19,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:19,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 44 conjuncts are in the unsatisfiable core [2025-04-24 23:31:19,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:31:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 995 proven. 190 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-24 23:31:20,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:31:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 891 proven. 294 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-24 23:31:22,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964048757] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:31:22,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:31:22,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 41] total 122 [2025-04-24 23:31:22,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052434326] [2025-04-24 23:31:22,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:31:22,378 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2025-04-24 23:31:22,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:22,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2025-04-24 23:31:22,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=12608, Unknown=0, NotChecked=0, Total=15006 [2025-04-24 23:31:22,381 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:22,381 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:22,382 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 123 states have (on average 4.260162601626016) internal successors, (524), 122 states have internal predecessors, (524), 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 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:22,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:31:22,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 23:31:23,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-04-24 23:31:23,200 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:31:23,200 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:31:23,200 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:23,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1379284522, now seen corresponding path program 13 times [2025-04-24 23:31:23,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:23,201 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854670842] [2025-04-24 23:31:23,201 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 23:31:23,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:23,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-04-24 23:31:23,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-04-24 23:31:23,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:31:23,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 371 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:31:40,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:40,222 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854670842] [2025-04-24 23:31:40,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854670842] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:31:40,222 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941062050] [2025-04-24 23:31:40,222 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 23:31:40,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:31:40,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:31:40,224 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:31:40,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-04-24 23:31:40,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-04-24 23:31:40,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-04-24 23:31:40,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:31:40,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:40,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 188 conjuncts are in the unsatisfiable core [2025-04-24 23:31:40,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:31:52,287 INFO L325 Elim1Store]: treesize reduction 196, result has 1.5 percent of original size [2025-04-24 23:31:52,287 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 21 select indices, 21 select index equivalence classes, 0 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 273 treesize of output 89 [2025-04-24 23:31:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 7 proven. 1204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:31:52,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:32:16,322 WARN L286 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 1434 DAG size of output: 733 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-04-24 23:32:16,322 INFO L325 Elim1Store]: treesize reduction 2086, result has 49.7 percent of original size [2025-04-24 23:32:16,323 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 40 select indices, 40 select index equivalence classes, 0 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 780 case distinctions, treesize of input 686 treesize of output 2212 [2025-04-24 23:32:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 0 proven. 1211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:32:22,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941062050] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:32:22,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:32:22,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64, 64] total 190 [2025-04-24 23:32:22,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239782833] [2025-04-24 23:32:22,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:32:22,818 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2025-04-24 23:32:22,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:32:22,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2025-04-24 23:32:22,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4264, Invalid=32026, Unknown=0, NotChecked=0, Total=36290 [2025-04-24 23:32:22,821 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:32:22,821 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:32:22,821 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 3.068062827225131) internal successors, (586), 190 states have internal predecessors, (586), 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 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 23:32:22,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:32:31,808 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:32:31,808 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:32:31,808 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:32:31,808 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:32:31,808 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:32:31,809 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 23:32:31,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-24 23:32:31,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-04-24 23:32:32,011 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-04-24 23:32:32,011 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:32:32,011 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:32:32,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1371496086, now seen corresponding path program 14 times [2025-04-24 23:32:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:32:32,011 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167774369] [2025-04-24 23:32:32,011 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:32:32,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:32:32,024 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 202 statements into 2 equivalence classes. [2025-04-24 23:32:32,304 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 202 of 202 statements. [2025-04-24 23:32:32,304 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:32:32,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 24 proven. 1277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:34:00,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:34:00,726 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167774369] [2025-04-24 23:34:00,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167774369] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:34:00,727 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956952723] [2025-04-24 23:34:00,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:34:00,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:00,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:00,729 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:00,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-04-24 23:34:00,823 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 202 statements into 2 equivalence classes. [2025-04-24 23:34:00,889 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 202 of 202 statements. [2025-04-24 23:34:00,889 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:34:00,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:00,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 191 conjuncts are in the unsatisfiable core [2025-04-24 23:34:00,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 143 proven. 1157 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 23:34:11,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:34:31,455 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 1339 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-04-24 23:34:31,455 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 23:34:31,456 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 40 select indices, 40 select index equivalence classes, 0 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 780 case distinctions, treesize of input 687 treesize of output 4110 [2025-04-24 23:34:55,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 0 proven. 1001 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2025-04-24 23:34:55,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956952723] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:34:55,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:34:55,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 65, 42] total 172 [2025-04-24 23:34:55,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71937404] [2025-04-24 23:34:55,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:34:55,379 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2025-04-24 23:34:55,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:34:55,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2025-04-24 23:34:55,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1808, Invalid=27948, Unknown=0, NotChecked=0, Total=29756 [2025-04-24 23:34:55,381 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:55,381 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:55,381 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 173 states, 173 states have (on average 3.3236994219653178) internal successors, (575), 172 states have internal predecessors, (575), 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 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:34:55,381 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:34:55,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 23:34:55,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:34:55,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 23:34:55,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-04-24 23:34:55,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 23:35:16,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-24 23:35:16,930 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2025-04-24 23:35:16,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-04-24 23:35:17,130 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:17,130 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 23:35:17,131 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:35:17,131 INFO L85 PathProgramCache]: Analyzing trace with hash 709933023, now seen corresponding path program 15 times [2025-04-24 23:35:17,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:35:17,131 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765792737] [2025-04-24 23:35:17,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:35:17,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:35:17,145 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 211 statements into 14 equivalence classes. [2025-04-24 23:35:17,401 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 208 of 211 statements. [2025-04-24 23:35:17,401 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-04-24 23:35:17,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:35:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 18 proven. 989 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2025-04-24 23:35:21,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:35:21,704 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765792737] [2025-04-24 23:35:21,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765792737] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:35:21,704 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519136334] [2025-04-24 23:35:21,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:35:21,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:21,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:35:21,706 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:35:21,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-04-24 23:35:21,812 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 211 statements into 14 equivalence classes. [2025-04-24 23:35:26,523 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 208 of 211 statements. [2025-04-24 23:35:26,523 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-04-24 23:35:26,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:35:26,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 197 conjuncts are in the unsatisfiable core [2025-04-24 23:35:26,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:35:26,729 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 19 treesize of output 1 [2025-04-24 23:35:26,736 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 19 treesize of output 1 [2025-04-24 23:35:26,742 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 19 treesize of output 1 [2025-04-24 23:35:26,752 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 19 treesize of output 1 [2025-04-24 23:35:26,759 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 19 treesize of output 1 [2025-04-24 23:35:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 159 proven. 1070 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-04-24 23:35:34,494 INFO L312 TraceCheckSpWp]: Computing backward predicates...