./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/fib_unsafe-12.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread/fib_unsafe-12.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d5255e9cc8ffb776115e75fa8fa1fa6c2774a79275dfd8235c357288b00417c --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 23:24:04,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 23:24:04,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 23:24:04,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 23:24:04,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 23:24:04,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 23:24:04,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 23:24:04,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 23:24:04,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 23:24:04,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 23:24:04,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 23:24:04,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 23:24:04,180 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 23:24:04,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 23:24:04,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 23:24:04,181 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 23:24:04,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 23:24:04,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 23:24:04,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 23:24:04,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 23:24:04,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 23:24:04,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 23:24:04,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 23:24:04,183 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 23:24:04,183 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 23:24:04,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 23:24:04,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 23:24:04,184 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 23:24:04,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 23:24:04,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 23:24:04,184 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 23:24:04,184 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 23:24:04,184 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 -> 0d5255e9cc8ffb776115e75fa8fa1fa6c2774a79275dfd8235c357288b00417c 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-03-19 23:24:04,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 23:24:04,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 23:24:04,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 23:24:04,440 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 23:24:04,440 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 23:24:04,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/fib_unsafe-12.i [2025-03-19 23:24:06,346 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/55f4cac02/4c70253994ec4acab88078e3d1e2fc51/FLAG8e966400b [2025-03-19 23:24:06,519 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 23:24:06,520 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_unsafe-12.i [2025-03-19 23:24:06,527 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/55f4cac02/4c70253994ec4acab88078e3d1e2fc51/FLAG8e966400b [2025-03-19 23:24:07,347 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/55f4cac02/4c70253994ec4acab88078e3d1e2fc51 [2025-03-19 23:24:07,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 23:24:07,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 23:24:07,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 23:24:07,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 23:24:07,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 23:24:07,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8832940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07, skipping insertion in model container [2025-03-19 23:24:07,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 23:24:07,585 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_unsafe-12.i[30243,30256] [2025-03-19 23:24:07,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 23:24:07,604 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 23:24:07,639 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_unsafe-12.i[30243,30256] [2025-03-19 23:24:07,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 23:24:07,676 INFO L204 MainTranslator]: Completed translation [2025-03-19 23:24:07,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07 WrapperNode [2025-03-19 23:24:07,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 23:24:07,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 23:24:07,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 23:24:07,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 23:24:07,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,709 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2025-03-19 23:24:07,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 23:24:07,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 23:24:07,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 23:24:07,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 23:24:07,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,722 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 23:24:07,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 23:24:07,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 23:24:07,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 23:24:07,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (1/1) ... [2025-03-19 23:24:07,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 23:24:07,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:07,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 23:24:07,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 23:24:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-03-19 23:24:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-03-19 23:24:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-03-19 23:24:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-03-19 23:24:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-19 23:24:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 23:24:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 23:24:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-19 23:24:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 23:24:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 23:24:07,792 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 23:24:07,889 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 23:24:07,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 23:24:08,003 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 23:24:08,003 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 23:24:08,091 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 23:24:08,091 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 23:24:08,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 11:24:08 BoogieIcfgContainer [2025-03-19 23:24:08,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 23:24:08,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 23:24:08,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 23:24:08,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 23:24:08,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 11:24:07" (1/3) ... [2025-03-19 23:24:08,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329479bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 11:24:08, skipping insertion in model container [2025-03-19 23:24:08,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:24:07" (2/3) ... [2025-03-19 23:24:08,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329479bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 11:24:08, skipping insertion in model container [2025-03-19 23:24:08,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 11:24:08" (3/3) ... [2025-03-19 23:24:08,101 INFO L128 eAbstractionObserver]: Analyzing ICFG fib_unsafe-12.i [2025-03-19 23:24:08,111 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 23:24:08,112 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fib_unsafe-12.i that has 3 procedures, 26 locations, 27 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-19 23:24:08,113 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 23:24:08,147 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-19 23:24:08,173 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:24:08,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 23:24:08,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:08,177 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) [2025-03-19 23:24:08,179 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 [2025-03-19 23:24:08,250 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 23:24:08,256 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 23:24:08,265 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;@209d5077, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:24:08,265 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-19 23:24:08,454 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:08,458 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:08,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2069511741, now seen corresponding path program 1 times [2025-03-19 23:24:08,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813281616] [2025-03-19 23:24:08,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:24:08,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:08,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-19 23:24:08,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-19 23:24:08,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:24:08,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:08,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:08,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813281616] [2025-03-19 23:24:08,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813281616] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:24:08,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:24:08,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 23:24:08,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178777952] [2025-03-19 23:24:08,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:24:08,650 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 23:24:08,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:08,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 23:24:08,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 23:24:08,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:08,664 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:08,665 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2025-03-19 23:24:08,665 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:08,691 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:08,691 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 23:24:08,692 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:08,692 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2099572992, now seen corresponding path program 1 times [2025-03-19 23:24:08,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:08,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813541788] [2025-03-19 23:24:08,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:24:08,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:08,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 23:24:08,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 23:24:08,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:24:08,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:08,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:08,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813541788] [2025-03-19 23:24:08,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813541788] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:08,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563057303] [2025-03-19 23:24:08,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:24:08,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:08,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:08,755 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) [2025-03-19 23:24:08,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 23:24:08,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 23:24:08,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 23:24:08,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:24:08,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:08,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-19 23:24:08,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:08,851 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:08,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:08,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563057303] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:08,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:08,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-19 23:24:08,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959537463] [2025-03-19 23:24:08,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:08,888 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-19 23:24:08,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:08,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-19 23:24:08,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-19 23:24:08,889 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:08,889 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:08,889 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) [2025-03-19 23:24:08,889 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:08,889 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:08,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:08,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:08,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-19 23:24:09,131 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-19 23:24:09,131 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:09,131 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:09,131 INFO L85 PathProgramCache]: Analyzing trace with hash 237873411, now seen corresponding path program 2 times [2025-03-19 23:24:09,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:09,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211613685] [2025-03-19 23:24:09,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:24:09,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:09,139 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-19 23:24:09,158 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-03-19 23:24:09,158 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:24:09,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:09,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:09,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211613685] [2025-03-19 23:24:09,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211613685] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:09,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121271656] [2025-03-19 23:24:09,251 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:24:09,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:09,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:09,253 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) [2025-03-19 23:24:09,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-19 23:24:09,295 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-19 23:24:09,316 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-03-19 23:24:09,317 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:24:09,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:09,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-19 23:24:09,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:09,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:09,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121271656] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:09,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:09,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-03-19 23:24:09,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668077553] [2025-03-19 23:24:09,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:09,397 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-19 23:24:09,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:09,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-19 23:24:09,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-19 23:24:09,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:09,399 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:09,399 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 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) [2025-03-19 23:24:09,399 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:09,399 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:09,399 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:09,463 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:09,463 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:09,463 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:09,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-19 23:24:09,663 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:09,664 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:09,664 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1815611421, now seen corresponding path program 3 times [2025-03-19 23:24:09,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:09,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477442971] [2025-03-19 23:24:09,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:24:09,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:09,670 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 25 statements into 6 equivalence classes. [2025-03-19 23:24:09,709 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 25 of 25 statements. [2025-03-19 23:24:09,711 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-19 23:24:09,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:09,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:09,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477442971] [2025-03-19 23:24:09,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477442971] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:09,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044872905] [2025-03-19 23:24:09,894 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:24:09,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:09,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:09,896 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) [2025-03-19 23:24:09,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-19 23:24:09,939 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 25 statements into 6 equivalence classes. [2025-03-19 23:24:09,961 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 25 of 25 statements. [2025-03-19 23:24:09,961 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-19 23:24:09,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:09,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-19 23:24:09,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:09,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:10,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044872905] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:10,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:10,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-03-19 23:24:10,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182840384] [2025-03-19 23:24:10,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:10,188 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-19 23:24:10,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:10,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-19 23:24:10,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-03-19 23:24:10,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:10,189 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:10,189 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 23:24:10,189 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:10,189 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:10,189 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:10,189 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:10,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:10,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:10,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:10,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:10,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-19 23:24:10,475 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:10,475 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:10,476 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash -90268253, now seen corresponding path program 4 times [2025-03-19 23:24:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226140560] [2025-03-19 23:24:10,476 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 23:24:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:10,487 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 37 statements into 2 equivalence classes. [2025-03-19 23:24:10,505 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-03-19 23:24:10,506 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 23:24:10,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:10,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226140560] [2025-03-19 23:24:10,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226140560] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875826594] [2025-03-19 23:24:10,920 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 23:24:10,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:10,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:10,921 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) [2025-03-19 23:24:10,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-19 23:24:10,957 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 37 statements into 2 equivalence classes. [2025-03-19 23:24:10,982 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-03-19 23:24:10,982 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 23:24:10,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:10,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-19 23:24:10,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:11,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:11,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875826594] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:11,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:11,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 29 [2025-03-19 23:24:11,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018083295] [2025-03-19 23:24:11,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:11,322 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-19 23:24:11,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:11,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-19 23:24:11,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2025-03-19 23:24:11,323 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:11,323 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:11,323 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 23:24:11,323 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:11,323 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:11,323 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:11,324 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:11,324 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:11,438 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:11,438 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:11,438 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:11,438 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:11,438 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:11,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-19 23:24:11,639 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:11,639 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:11,639 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash -493513501, now seen corresponding path program 5 times [2025-03-19 23:24:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:11,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978663343] [2025-03-19 23:24:11,640 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 23:24:11,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:11,653 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 41 statements into 14 equivalence classes. [2025-03-19 23:24:11,729 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) and asserted 41 of 41 statements. [2025-03-19 23:24:11,729 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2025-03-19 23:24:11,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:13,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:13,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978663343] [2025-03-19 23:24:13,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978663343] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:13,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281689570] [2025-03-19 23:24:13,115 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 23:24:13,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:13,117 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) [2025-03-19 23:24:13,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-19 23:24:13,159 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 41 statements into 14 equivalence classes. [2025-03-19 23:24:13,192 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) and asserted 41 of 41 statements. [2025-03-19 23:24:13,192 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2025-03-19 23:24:13,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:13,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 89 conjuncts are in the unsatisfiable core [2025-03-19 23:24:13,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 300 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:14,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:16,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281689570] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:16,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:16,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 96 [2025-03-19 23:24:16,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510675573] [2025-03-19 23:24:16,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:16,153 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2025-03-19 23:24:16,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:16,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2025-03-19 23:24:16,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1338, Invalid=7974, Unknown=0, NotChecked=0, Total=9312 [2025-03-19 23:24:16,170 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:16,170 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:16,170 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 96 states have internal predecessors, (119), 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) [2025-03-19 23:24:16,170 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:16,171 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:16,171 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:16,171 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:16,171 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:16,171 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:21,714 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:21,715 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:21,715 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:21,715 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:21,715 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:21,715 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-19 23:24:21,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-19 23:24:21,915 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:21,915 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:21,916 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:21,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1309895976, now seen corresponding path program 1 times [2025-03-19 23:24:21,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:21,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581340191] [2025-03-19 23:24:21,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:24:21,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:21,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-19 23:24:21,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-19 23:24:21,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:24:21,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:23,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:23,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581340191] [2025-03-19 23:24:23,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581340191] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:23,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007297873] [2025-03-19 23:24:23,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:24:23,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:23,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:23,178 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) [2025-03-19 23:24:23,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-19 23:24:23,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-19 23:24:23,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-19 23:24:23,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:24:23,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:23,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 91 conjuncts are in the unsatisfiable core [2025-03-19 23:24:23,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:24,505 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 300 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:24,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:26,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007297873] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:26,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:26,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 102 [2025-03-19 23:24:26,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515921914] [2025-03-19 23:24:26,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:26,075 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2025-03-19 23:24:26,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:26,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2025-03-19 23:24:26,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1357, Invalid=9149, Unknown=0, NotChecked=0, Total=10506 [2025-03-19 23:24:26,078 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:26,078 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:26,078 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 102 states have internal predecessors, (138), 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) [2025-03-19 23:24:26,078 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:26,078 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:26,078 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:26,078 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:26,078 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:26,078 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-03-19 23:24:26,078 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:33,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:33,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:33,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:33,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:33,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:33,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2025-03-19 23:24:33,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2025-03-19 23:24:33,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-19 23:24:33,386 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-03-19 23:24:33,386 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:33,386 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:33,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1935049519, now seen corresponding path program 2 times [2025-03-19 23:24:33,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:33,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036270370] [2025-03-19 23:24:33,386 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:24:33,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:33,391 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 55 statements into 2 equivalence classes. [2025-03-19 23:24:33,404 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 55 of 55 statements. [2025-03-19 23:24:33,405 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:24:33,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:34,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:34,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036270370] [2025-03-19 23:24:34,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036270370] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:34,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882771679] [2025-03-19 23:24:34,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:24:34,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:34,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:34,857 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) [2025-03-19 23:24:34,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-19 23:24:34,895 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 55 statements into 2 equivalence classes. [2025-03-19 23:24:34,926 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 55 of 55 statements. [2025-03-19 23:24:34,926 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:24:34,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:34,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 94 conjuncts are in the unsatisfiable core [2025-03-19 23:24:34,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 300 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:36,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:38,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882771679] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:38,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:38,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 111 [2025-03-19 23:24:38,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089763311] [2025-03-19 23:24:38,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:38,121 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2025-03-19 23:24:38,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:38,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2025-03-19 23:24:38,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1406, Invalid=11026, Unknown=0, NotChecked=0, Total=12432 [2025-03-19 23:24:38,124 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:38,124 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:38,124 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 111 states have internal predecessors, (163), 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) [2025-03-19 23:24:38,124 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:38,124 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:38,124 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:38,124 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:38,124 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:38,124 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2025-03-19 23:24:38,125 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2025-03-19 23:24:38,125 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2025-03-19 23:24:49,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2025-03-19 23:24:49,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-19 23:24:49,517 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:49,517 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:24:49,518 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:24:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash -684166591, now seen corresponding path program 3 times [2025-03-19 23:24:49,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:24:49,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889091360] [2025-03-19 23:24:49,518 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:24:49,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:24:49,523 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 77 statements into 14 equivalence classes. [2025-03-19 23:24:49,561 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) and asserted 77 of 77 statements. [2025-03-19 23:24:49,561 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2025-03-19 23:24:49,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:50,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:24:50,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889091360] [2025-03-19 23:24:50,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889091360] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:24:50,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329190595] [2025-03-19 23:24:50,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:24:50,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:24:50,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:24:50,921 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) [2025-03-19 23:24:50,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-19 23:24:50,956 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 77 statements into 14 equivalence classes. [2025-03-19 23:24:50,990 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) and asserted 77 of 77 statements. [2025-03-19 23:24:50,991 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2025-03-19 23:24:50,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:24:50,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 101 conjuncts are in the unsatisfiable core [2025-03-19 23:24:50,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:24:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 300 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:53,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:24:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:24:55,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329190595] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:24:55,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:24:55,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 133 [2025-03-19 23:24:55,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700570366] [2025-03-19 23:24:55,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:24:55,665 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2025-03-19 23:24:55,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:24:55,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2025-03-19 23:24:55,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1536, Invalid=16286, Unknown=0, NotChecked=0, Total=17822 [2025-03-19 23:24:55,669 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:24:55,669 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:24:55,670 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 1.708955223880597) internal successors, (229), 133 states have internal predecessors, (229), 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) [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2025-03-19 23:24:55,670 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2025-03-19 23:25:15,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2025-03-19 23:25:15,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-19 23:25:15,823 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:25:15,823 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:25:15,823 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:25:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash 714687452, now seen corresponding path program 4 times [2025-03-19 23:25:15,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:25:15,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228376906] [2025-03-19 23:25:15,823 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 23:25:15,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:25:15,828 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 109 statements into 2 equivalence classes. [2025-03-19 23:25:15,842 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 109 of 109 statements. [2025-03-19 23:25:15,842 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 23:25:15,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:25:18,141 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:25:18,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:25:18,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228376906] [2025-03-19 23:25:18,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228376906] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:25:18,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852402261] [2025-03-19 23:25:18,142 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 23:25:18,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:25:18,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:25:18,143 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) [2025-03-19 23:25:18,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-19 23:25:18,183 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 109 statements into 2 equivalence classes. [2025-03-19 23:25:18,215 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 109 of 109 statements. [2025-03-19 23:25:18,215 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 23:25:18,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:25:18,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 112 conjuncts are in the unsatisfiable core [2025-03-19 23:25:18,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:25:21,268 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 300 proven. 414 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:25:21,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:25:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:25:25,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852402261] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:25:25,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:25:25,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 166 [2025-03-19 23:25:25,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054720621] [2025-03-19 23:25:25,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:25:25,207 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2025-03-19 23:25:25,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:25:25,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2025-03-19 23:25:25,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2167, Invalid=25555, Unknown=0, NotChecked=0, Total=27722 [2025-03-19 23:25:25,215 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:25:25,215 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:25:25,215 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 1.9461077844311376) internal successors, (325), 166 states have internal predecessors, (325), 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) [2025-03-19 23:25:25,215 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:25:25,215 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2025-03-19 23:25:25,216 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:25:41,695 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2025-03-19 23:25:41,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2025-03-19 23:25:41,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-19 23:25:41,896 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-19 23:25:41,896 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 23:25:41,897 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:25:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1139771233, now seen corresponding path program 5 times [2025-03-19 23:25:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:25:41,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558451765] [2025-03-19 23:25:41,897 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 23:25:41,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:25:41,902 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 113 statements into 14 equivalence classes. [2025-03-19 23:25:41,946 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) and asserted 113 of 113 statements. [2025-03-19 23:25:41,948 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2025-03-19 23:25:41,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-19 23:25:41,949 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-19 23:25:41,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-19 23:25:41,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-19 23:25:41,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:25:41,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-19 23:25:41,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-19 23:25:41,996 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-19 23:25:41,997 INFO L791 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-03-19 23:25:41,999 INFO L791 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-03-19 23:25:41,999 INFO L791 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-03-19 23:25:41,999 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-19 23:25:42,003 INFO L422 BasicCegarLoop]: Path program histogram: [5, 5, 1] [2025-03-19 23:25:42,132 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-19 23:25:42,132 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-19 23:25:42,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-03-19 23:25:42,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 11:25:42 BasicIcfg [2025-03-19 23:25:42,145 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-19 23:25:42,146 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-19 23:25:42,146 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-19 23:25:42,146 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-19 23:25:42,148 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 11:24:08" (3/4) ... [2025-03-19 23:25:42,148 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-19 23:25:42,263 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 56. [2025-03-19 23:25:42,311 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-19 23:25:42,312 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-19 23:25:42,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-19 23:25:42,312 INFO L158 Benchmark]: Toolchain (without parser) took 94962.03ms. Allocated memory was 117.4MB in the beginning and 595.6MB in the end (delta: 478.2MB). Free memory was 91.3MB in the beginning and 183.1MB in the end (delta: -91.9MB). Peak memory consumption was 382.9MB. Max. memory is 16.1GB. [2025-03-19 23:25:42,313 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 23:25:42,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.60ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 68.6MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-19 23:25:42,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.93ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 23:25:42,313 INFO L158 Benchmark]: Boogie Preprocessor took 24.01ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 66.1MB in the end (delta: 988.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 23:25:42,313 INFO L158 Benchmark]: RCFGBuilder took 357.43ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 46.0MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-19 23:25:42,314 INFO L158 Benchmark]: TraceAbstraction took 94050.55ms. Allocated memory was 117.4MB in the beginning and 595.6MB in the end (delta: 478.2MB). Free memory was 45.4MB in the beginning and 211.4MB in the end (delta: -166.0MB). Peak memory consumption was 307.4MB. Max. memory is 16.1GB. [2025-03-19 23:25:42,314 INFO L158 Benchmark]: Witness Printer took 166.28ms. Allocated memory is still 595.6MB. Free memory was 211.4MB in the beginning and 183.1MB in the end (delta: 28.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-19 23:25:42,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.60ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 68.6MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.93ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.01ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 66.1MB in the end (delta: 988.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 357.43ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 46.0MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 94050.55ms. Allocated memory was 117.4MB in the beginning and 595.6MB in the end (delta: 478.2MB). Free memory was 45.4MB in the beginning and 211.4MB in the end (delta: -166.0MB). Peak memory consumption was 307.4MB. Max. memory is 16.1GB. * Witness Printer took 166.28ms. Allocated memory is still 595.6MB. Free memory was 211.4MB in the beginning and 183.1MB in the end (delta: 28.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 244, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 244, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 228, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 228, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 193, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 244, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 228, unknown conditional: 0, unknown unconditional: 228] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 221, Positive conditional cache size: 0, Positive unconditional cache size: 221, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 24, Number of trivial persistent sets: 12, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 244, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 244, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 228, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 228, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 193, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 244, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 228, unknown conditional: 0, unknown unconditional: 228] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 221, Positive conditional cache size: 0, Positive unconditional cache size: 221, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - CounterExampleResult [Line: 681]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int i, j; [L685] 0 int p, q; [L702] 0 int cur = 1, prev = 0, next = 0; [L703] 0 int x; [L713] 0 pthread_t id1, id2; VAL [\at(argc, Pre)=196419, \at(argv, Pre)={196420:196421}, argc=196419, cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L715] 0 i = 1 VAL [\at(argc, Pre)=196419, \at(argv, Pre)={196420:196421}, argc=196419, cur=1, i=1, j=0, next=0, p=0, prev=0, q=0, x=0] [L718] 0 j = 1 VAL [\at(argc, Pre)=196419, \at(argv, Pre)={196420:196421}, argc=196419, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L720] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\at(arg, Pre)={0:0}, \at(argc, Pre)=196419, \at(argv, Pre)={196420:196421}, argc=196419, cur=1, i=1, id1=-2, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:196421}, \at(argc, Pre)=196419, argc=196419, cur=1, i=1, id1=-2, id2=-1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] CALL, EXPR 0 fib() [L705] 0 x = 0 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=2584, i=1, j=1, next=2584, p=0, prev=1597, q=0, x=17] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=4181, i=1, j=1, next=4181, p=0, prev=2584, q=0, x=18] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=6765, i=1, j=1, next=6765, p=0, prev=4181, q=0, x=19] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=10946, i=1, j=1, next=10946, p=0, prev=6765, q=0, x=20] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=17711, i=1, j=1, next=17711, p=0, prev=10946, q=0, x=21] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=28657, i=1, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=46368, i=1, j=1, next=46368, p=0, prev=28657, q=0, x=23] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=75025, i=1, j=1, next=75025, p=0, prev=46368, q=0, x=24] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=121393, i=1, j=1, next=121393, p=0, prev=75025, q=0, x=25] [L705] COND TRUE 0 x < 26 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, cur=196418, i=1, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L705] COND FALSE 0 !(x < 26) [L710] 0 return prev; [L722] RET, EXPR 0 fib() [L722] 0 int correct = fib(); [L687] 1 p = 0 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, cur=196418, i=1, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L695] 2 q = 0 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=1, next=196418, p=1, prev=121393, q=0, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=1, next=196418, p=1, prev=121393, q=0, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=3, next=196418, p=1, prev=121393, q=0, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=3, next=196418, p=1, prev=121393, q=1, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=3, next=196418, p=1, prev=121393, q=1, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=5, j=3, next=196418, p=1, prev=121393, q=1, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=5, j=3, next=196418, p=2, prev=121393, q=1, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=5, j=3, next=196418, p=2, prev=121393, q=1, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=5, j=8, next=196418, p=2, prev=121393, q=1, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=5, j=8, next=196418, p=2, prev=121393, q=2, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=5, j=8, next=196418, p=2, prev=121393, q=2, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=13, j=8, next=196418, p=2, prev=121393, q=2, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=13, j=8, next=196418, p=3, prev=121393, q=2, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=13, j=8, next=196418, p=3, prev=121393, q=2, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=13, j=21, next=196418, p=3, prev=121393, q=2, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=13, j=21, next=196418, p=3, prev=121393, q=3, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=13, j=21, next=196418, p=3, prev=121393, q=3, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=34, j=21, next=196418, p=3, prev=121393, q=3, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=34, j=21, next=196418, p=4, prev=121393, q=3, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=34, j=21, next=196418, p=4, prev=121393, q=3, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=34, j=55, next=196418, p=4, prev=121393, q=3, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=34, j=55, next=196418, p=4, prev=121393, q=4, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=34, j=55, next=196418, p=4, prev=121393, q=4, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=89, j=55, next=196418, p=4, prev=121393, q=4, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=89, j=55, next=196418, p=5, prev=121393, q=4, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=89, j=55, next=196418, p=5, prev=121393, q=4, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=89, j=144, next=196418, p=5, prev=121393, q=4, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=89, j=144, next=196418, p=5, prev=121393, q=5, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=89, j=144, next=196418, p=5, prev=121393, q=5, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=233, j=144, next=196418, p=5, prev=121393, q=5, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=233, j=144, next=196418, p=6, prev=121393, q=5, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=233, j=144, next=196418, p=6, prev=121393, q=5, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=233, j=377, next=196418, p=6, prev=121393, q=5, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=233, j=377, next=196418, p=6, prev=121393, q=6, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=233, j=377, next=196418, p=6, prev=121393, q=6, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=610, j=377, next=196418, p=6, prev=121393, q=6, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=610, j=377, next=196418, p=7, prev=121393, q=6, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=610, j=377, next=196418, p=7, prev=121393, q=6, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=610, j=987, next=196418, p=7, prev=121393, q=6, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=610, j=987, next=196418, p=7, prev=121393, q=7, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=610, j=987, next=196418, p=7, prev=121393, q=7, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1597, j=987, next=196418, p=7, prev=121393, q=7, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1597, j=987, next=196418, p=8, prev=121393, q=7, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1597, j=987, next=196418, p=8, prev=121393, q=7, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1597, j=2584, next=196418, p=8, prev=121393, q=7, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1597, j=2584, next=196418, p=8, prev=121393, q=8, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1597, j=2584, next=196418, p=8, prev=121393, q=8, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=4181, j=2584, next=196418, p=8, prev=121393, q=8, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=4181, j=2584, next=196418, p=9, prev=121393, q=8, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=4181, j=2584, next=196418, p=9, prev=121393, q=8, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=4181, j=6765, next=196418, p=9, prev=121393, q=8, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=4181, j=6765, next=196418, p=9, prev=121393, q=9, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=4181, j=6765, next=196418, p=9, prev=121393, q=9, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=10946, j=6765, next=196418, p=9, prev=121393, q=9, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=10946, j=6765, next=196418, p=10, prev=121393, q=9, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=10946, j=6765, next=196418, p=10, prev=121393, q=9, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=10946, j=17711, next=196418, p=10, prev=121393, q=9, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=10946, j=17711, next=196418, p=10, prev=121393, q=10, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=10946, j=17711, next=196418, p=10, prev=121393, q=10, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=28657, j=17711, next=196418, p=10, prev=121393, q=10, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=28657, j=17711, next=196418, p=11, prev=121393, q=10, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=28657, j=17711, next=196418, p=11, prev=121393, q=10, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=28657, j=46368, next=196418, p=11, prev=121393, q=10, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=28657, j=46368, next=196418, p=11, prev=121393, q=11, x=26] [L687] COND TRUE 1 p < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=28657, j=46368, next=196418, p=11, prev=121393, q=11, x=26] [L689] 1 i = i + j VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=75025, j=46368, next=196418, p=11, prev=121393, q=11, x=26] [L687] 1 p++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=75025, j=46368, next=196418, p=12, prev=121393, q=11, x=26] [L695] COND TRUE 2 q < 12 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=75025, j=46368, next=196418, p=12, prev=121393, q=11, x=26] [L697] 2 j = j + i VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=75025, j=121393, next=196418, p=12, prev=121393, q=11, x=26] [L695] 2 q++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=75025, j=121393, next=196418, p=12, prev=121393, q=12, x=26] [L724] 0 _Bool assert_cond = i < correct && j < correct; VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:196421}, \at(argc, Pre)=196419, arg={0:0}, arg={0:0}, argc=196419, assert_cond=0, correct=121393, cur=196418, i=75025, id1=-2, id2=-1, j=121393, next=196418, p=12, prev=121393, q=12, x=26] [L726] CALL 0 __VERIFIER_assert(assert_cond) [L681] COND TRUE 0 !expression VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \at(expression, Pre)=0, arg={0:0}, arg={0:0}, cur=196418, expression=0, i=75025, j=121393, next=196418, p=12, prev=121393, q=12, x=26] [L681] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \at(expression, Pre)=0, arg={0:0}, arg={0:0}, cur=196418, expression=0, i=75025, j=121393, next=196418, p=12, prev=121393, q=12, x=26] - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 38 locations, 41 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 93.8s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 60.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 562, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 29.9s InterpolantComputationTime, 980 NumberOfCodeBlocks, 980 NumberOfCodeBlocksAsserted, 103 NumberOfCheckSat, 1265 ConstructedInterpolants, 0 QuantifiedInterpolants, 17303 SizeOfPredicates, 160 NumberOfNonLiveVariables, 2654 ConjunctsInSsa, 532 ConjunctsInUnsatCore, 28 InterpolantComputations, 1 PerfectInterpolantSequences, 1500/7638 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-19 23:25:42,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE