./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-theta/unwind1-100.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 42d87675 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind1-100.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 d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 --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-42d8767-m [2025-04-25 04:14:16,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 04:14:16,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-25 04:14:16,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 04:14:16,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 04:14:16,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 04:14:16,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 04:14:16,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 04:14:16,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 04:14:16,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 04:14:16,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 04:14:16,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 04:14:16,813 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 04:14:16,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 04:14:16,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 04:14:16,813 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 04:14:16,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 04:14:16,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 04:14:16,814 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 04:14:16,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 04:14:16,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 04:14:16,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 04:14:16,815 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 04:14:16,815 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 -> d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 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 [2025-04-25 04:14:17,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 04:14:17,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 04:14:17,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 04:14:17,050 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-25 04:14:17,051 INFO L274 PluginConnector]: CDTParser initialized [2025-04-25 04:14:17,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-theta/unwind1-100.i [2025-04-25 04:14:18,298 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d59bb7396/645e5802365c456bb2e37b7ade7261cf/FLAG4d155d0aa [2025-04-25 04:14:18,582 INFO L389 CDTParser]: Found 1 translation units. [2025-04-25 04:14:18,583 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i [2025-04-25 04:14:18,592 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d59bb7396/645e5802365c456bb2e37b7ade7261cf/FLAG4d155d0aa [2025-04-25 04:14:19,348 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d59bb7396/645e5802365c456bb2e37b7ade7261cf [2025-04-25 04:14:19,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 04:14:19,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-25 04:14:19,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-25 04:14:19,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-25 04:14:19,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-25 04:14:19,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b47a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19, skipping insertion in model container [2025-04-25 04:14:19,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,384 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-25 04:14:19,677 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i[33026,33039] [2025-04-25 04:14:19,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 04:14:19,704 INFO L200 MainTranslator]: Completed pre-run [2025-04-25 04:14:19,759 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i[33026,33039] [2025-04-25 04:14:19,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 04:14:19,792 INFO L204 MainTranslator]: Completed translation [2025-04-25 04:14:19,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19 WrapperNode [2025-04-25 04:14:19,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-25 04:14:19,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 04:14:19,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 04:14:19,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 04:14:19,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,829 INFO L138 Inliner]: procedures = 169, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2025-04-25 04:14:19,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 04:14:19,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 04:14:19,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 04:14:19,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 04:14:19,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,841 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 04:14:19,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 04:14:19,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 04:14:19,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 04:14:19,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (1/1) ... [2025-04-25 04:14:19,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 04:14:19,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:19,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-25 04:14:19,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-25 04:14:19,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-25 04:14:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-04-25 04:14:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-04-25 04:14:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-04-25 04:14:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-04-25 04:14:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-25 04:14:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 04:14:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 04:14:19,909 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-25 04:14:20,020 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 04:14:20,022 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 04:14:20,103 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 04:14:20,103 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 04:14:20,156 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 04:14:20,156 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-25 04:14:20,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 04:14:20 BoogieIcfgContainer [2025-04-25 04:14:20,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 04:14:20,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 04:14:20,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 04:14:20,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 04:14:20,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.04 04:14:19" (1/3) ... [2025-04-25 04:14:20,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fa40cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 04:14:20, skipping insertion in model container [2025-04-25 04:14:20,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:14:19" (2/3) ... [2025-04-25 04:14:20,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fa40cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 04:14:20, skipping insertion in model container [2025-04-25 04:14:20,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 04:14:20" (3/3) ... [2025-04-25 04:14:20,166 INFO L128 eAbstractionObserver]: Analyzing ICFG unwind1-100.i [2025-04-25 04:14:20,175 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 04:14:20,177 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind1-100.i that has 3 procedures, 22 locations, 22 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-25 04:14:20,177 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 04:14:20,217 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-25 04:14:20,250 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 04:14:20,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 04:14:20,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:20,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-25 04:14:20,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-25 04:14:20,315 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 04:14:20,322 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork0 ======== [2025-04-25 04:14:20,330 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;@22763e3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 04:14:20,330 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-25 04:14:20,380 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:20,384 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:20,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1012823644, now seen corresponding path program 1 times [2025-04-25 04:14:20,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:20,390 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884470087] [2025-04-25 04:14:20,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:14:20,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:20,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-25 04:14:20,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-25 04:14:20,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:14:20,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:20,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:20,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:20,658 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884470087] [2025-04-25 04:14:20,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884470087] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 04:14:20,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 04:14:20,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 04:14:20,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028391951] [2025-04-25 04:14:20,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 04:14:20,665 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-25 04:14:20,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:14:20,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-25 04:14:20,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-25 04:14:20,679 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:20,680 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:14:20,681 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:14:20,681 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:20,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:20,743 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 04:14:20,743 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:20,743 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:20,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1332731253, now seen corresponding path program 1 times [2025-04-25 04:14:20,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:20,743 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130918176] [2025-04-25 04:14:20,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:14:20,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:20,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-25 04:14:20,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-25 04:14:20,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:14:20,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:20,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:20,866 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130918176] [2025-04-25 04:14:20,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130918176] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:14:20,867 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223010195] [2025-04-25 04:14:20,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:14:20,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:20,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:20,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:14:20,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-25 04:14:20,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-25 04:14:20,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-25 04:14:20,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:14:20,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:20,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-25 04:14:20,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:14:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:21,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:14:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:21,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223010195] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:14:21,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:14:21,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-04-25 04:14:21,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845320066] [2025-04-25 04:14:21,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:14:21,069 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-25 04:14:21,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:14:21,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-25 04:14:21,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-25 04:14:21,070 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:21,070 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:14:21,070 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:14:21,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:21,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:21,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:21,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 04:14:21,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-25 04:14:21,414 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-04-25 04:14:21,414 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:21,415 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:21,415 INFO L85 PathProgramCache]: Analyzing trace with hash 688649372, now seen corresponding path program 2 times [2025-04-25 04:14:21,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:21,415 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896714963] [2025-04-25 04:14:21,415 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 04:14:21,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:21,421 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-04-25 04:14:21,426 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 04:14:21,426 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 04:14:21,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:21,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:21,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:21,557 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896714963] [2025-04-25 04:14:21,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896714963] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:14:21,557 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261066532] [2025-04-25 04:14:21,557 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 04:14:21,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:21,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:21,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:14:21,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-25 04:14:21,599 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-04-25 04:14:21,608 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 04:14:21,609 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 04:14:21,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:21,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-25 04:14:21,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:14:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:21,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:14:21,819 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:21,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261066532] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:14:21,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:14:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2025-04-25 04:14:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174478128] [2025-04-25 04:14:21,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:14:21,820 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-04-25 04:14:21,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:14:21,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-04-25 04:14:21,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2025-04-25 04:14:21,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:21,821 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:14:21,821 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:14:21,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:21,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 04:14:21,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:22,051 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:22,051 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 04:14:22,051 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:22,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-25 04:14:22,252 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:22,252 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:22,252 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1753737732, now seen corresponding path program 3 times [2025-04-25 04:14:22,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:22,253 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413516270] [2025-04-25 04:14:22,253 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 04:14:22,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:22,258 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 6 equivalence classes. [2025-04-25 04:14:22,266 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 21 statements. [2025-04-25 04:14:22,266 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 04:14:22,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:22,325 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-04-25 04:14:22,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:22,326 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413516270] [2025-04-25 04:14:22,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413516270] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:14:22,326 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501738940] [2025-04-25 04:14:22,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 04:14:22,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:22,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:22,329 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:14:22,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-25 04:14:22,366 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 6 equivalence classes. [2025-04-25 04:14:22,376 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 21 statements. [2025-04-25 04:14:22,376 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 04:14:22,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:22,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 04:14:22,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:14:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-04-25 04:14:22,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:14:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-04-25 04:14:22,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501738940] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:14:22,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:14:22,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2025-04-25 04:14:22,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479811058] [2025-04-25 04:14:22,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:14:22,466 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-25 04:14:22,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:14:22,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-25 04:14:22,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-04-25 04:14:22,466 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:22,466 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:14:22,467 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2025-04-25 04:14:22,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:22,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 04:14:22,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:22,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:22,700 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:22,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:14:22,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:22,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:14:22,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-25 04:14:22,902 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:22,903 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:22,903 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash -756720100, now seen corresponding path program 1 times [2025-04-25 04:14:22,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:22,904 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477752718] [2025-04-25 04:14:22,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:14:22,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:22,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-25 04:14:22,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 04:14:22,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:14:22,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:23,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:23,069 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477752718] [2025-04-25 04:14:23,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477752718] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:14:23,069 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775058768] [2025-04-25 04:14:23,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:14:23,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:23,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:23,071 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:14:23,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-25 04:14:23,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-25 04:14:23,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 04:14:23,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:14:23,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:23,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-25 04:14:23,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:14:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:23,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:14:23,642 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:23,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775058768] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:14:23,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:14:23,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2025-04-25 04:14:23,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618108907] [2025-04-25 04:14:23,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:14:23,643 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-04-25 04:14:23,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:14:23,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-04-25 04:14:23,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2025-04-25 04:14:23,644 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:23,644 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:14:23,645 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.35) internal successors, (54), 39 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:14:23,645 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:23,645 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:14:23,645 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:23,645 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:14:23,645 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:25,335 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:25,335 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:14:25,335 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:25,335 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:14:25,336 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-04-25 04:14:25,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-25 04:14:25,536 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:25,536 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:25,537 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:25,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1268459300, now seen corresponding path program 2 times [2025-04-25 04:14:25,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:25,537 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105898038] [2025-04-25 04:14:25,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 04:14:25,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:25,541 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 2 equivalence classes. [2025-04-25 04:14:25,556 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-04-25 04:14:25,556 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 04:14:25,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:25,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:25,910 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105898038] [2025-04-25 04:14:25,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105898038] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:14:25,910 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61486104] [2025-04-25 04:14:25,910 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 04:14:25,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:25,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:25,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:14:25,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-25 04:14:25,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 2 equivalence classes. [2025-04-25 04:14:25,952 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-04-25 04:14:25,953 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 04:14:25,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:25,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-25 04:14:25,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:14:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:26,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:14:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:27,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61486104] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:14:27,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:14:27,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 75 [2025-04-25 04:14:27,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065909358] [2025-04-25 04:14:27,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:14:27,160 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2025-04-25 04:14:27,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:14:27,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2025-04-25 04:14:27,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=4259, Unknown=0, NotChecked=0, Total=5700 [2025-04-25 04:14:27,162 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:27,163 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:14:27,163 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 75 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:14:27,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:27,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:14:27,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:27,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:14:27,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2025-04-25 04:14:27,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:31,434 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:31,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:14:31,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:31,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:14:31,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-04-25 04:14:31,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2025-04-25 04:14:31,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-25 04:14:31,639 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:31,639 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:31,639 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:31,639 INFO L85 PathProgramCache]: Analyzing trace with hash -533893540, now seen corresponding path program 3 times [2025-04-25 04:14:31,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:31,639 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667964333] [2025-04-25 04:14:31,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 04:14:31,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:31,646 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 57 statements into 24 equivalence classes. [2025-04-25 04:14:31,670 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) and asserted 57 of 57 statements. [2025-04-25 04:14:31,671 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2025-04-25 04:14:31,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:32,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:32,779 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667964333] [2025-04-25 04:14:32,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667964333] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:14:32,779 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485579528] [2025-04-25 04:14:32,779 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 04:14:32,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:32,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:32,781 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:14:32,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-25 04:14:32,816 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 57 statements into 24 equivalence classes. [2025-04-25 04:14:32,841 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) and asserted 57 of 57 statements. [2025-04-25 04:14:32,841 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2025-04-25 04:14:32,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:32,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 51 conjuncts are in the unsatisfiable core [2025-04-25 04:14:32,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:14:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:34,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:14:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:37,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485579528] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:14:37,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:14:37,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 147 [2025-04-25 04:14:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144962584] [2025-04-25 04:14:37,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:14:37,066 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 148 states [2025-04-25 04:14:37,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:14:37,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2025-04-25 04:14:37,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5749, Invalid=16007, Unknown=0, NotChecked=0, Total=21756 [2025-04-25 04:14:37,071 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:37,071 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:14:37,072 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 148 states, 148 states have (on average 1.0945945945945945) internal successors, (162), 147 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:14:37,072 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:37,072 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:14:37,072 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:37,072 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:14:37,072 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2025-04-25 04:14:37,072 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2025-04-25 04:14:37,072 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:14:52,125 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:14:52,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:14:52,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:14:52,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:14:52,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-04-25 04:14:52,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2025-04-25 04:14:52,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. [2025-04-25 04:14:52,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-25 04:14:52,326 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-04-25 04:14:52,327 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:14:52,327 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:14:52,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1071310500, now seen corresponding path program 4 times [2025-04-25 04:14:52,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:14:52,327 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636041307] [2025-04-25 04:14:52,327 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 04:14:52,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:14:52,333 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 105 statements into 2 equivalence classes. [2025-04-25 04:14:52,366 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 105 of 105 statements. [2025-04-25 04:14:52,367 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-25 04:14:52,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:55,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:14:55,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:14:55,926 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636041307] [2025-04-25 04:14:55,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636041307] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:14:55,926 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238444650] [2025-04-25 04:14:55,926 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 04:14:55,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:14:55,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:14:55,928 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:14:55,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-25 04:14:55,967 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 105 statements into 2 equivalence classes. [2025-04-25 04:14:56,000 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 105 of 105 statements. [2025-04-25 04:14:56,001 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-25 04:14:56,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:14:56,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 99 conjuncts are in the unsatisfiable core [2025-04-25 04:14:56,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:15:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:15:01,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:15:09,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:15:09,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238444650] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:15:09,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:15:09,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 291 [2025-04-25 04:15:09,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42592900] [2025-04-25 04:15:09,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:15:09,690 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 292 states [2025-04-25 04:15:09,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:15:09,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 292 interpolants. [2025-04-25 04:15:09,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19087, Invalid=65885, Unknown=0, NotChecked=0, Total=84972 [2025-04-25 04:15:09,700 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:15:09,700 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:15:09,701 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 292 states, 292 states have (on average 1.047945205479452) internal successors, (306), 291 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 334 states. [2025-04-25 04:15:09,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. [2025-04-25 04:15:59,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 581 states. [2025-04-25 04:15:59,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-25 04:15:59,542 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:15:59,542 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 04:15:59,542 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:15:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash -712887019, now seen corresponding path program 5 times [2025-04-25 04:15:59,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:15:59,543 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626571846] [2025-04-25 04:15:59,543 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 04:15:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:15:59,549 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 112 statements into 52 equivalence classes. [2025-04-25 04:15:59,602 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 52 check-sat command(s) and asserted 112 of 112 statements. [2025-04-25 04:15:59,603 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 52 check-sat command(s) [2025-04-25 04:15:59,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-25 04:15:59,603 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-25 04:15:59,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-04-25 04:15:59,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-04-25 04:15:59,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:15:59,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-25 04:15:59,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-25 04:15:59,675 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-25 04:15:59,675 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-25 04:15:59,676 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-25 04:15:59,680 INFO L422 BasicCegarLoop]: Path program histogram: [5, 3, 1] [2025-04-25 04:15:59,681 INFO L320 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork0 was UNSAFE (1/2) [2025-04-25 04:15:59,847 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-25 04:15:59,847 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-25 04:15:59,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-25 04:15:59,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.04 04:15:59 BasicIcfg [2025-04-25 04:15:59,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-25 04:15:59,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-25 04:15:59,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-25 04:15:59,859 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-25 04:15:59,859 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 04:14:20" (3/4) ... [2025-04-25 04:15:59,860 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-25 04:15:59,933 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 109. [2025-04-25 04:16:00,002 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-25 04:16:00,003 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-25 04:16:00,003 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-25 04:16:00,004 INFO L158 Benchmark]: Toolchain (without parser) took 100652.55ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 111.0MB in the beginning and 356.3MB in the end (delta: -245.3MB). Peak memory consumption was 207.7MB. Max. memory is 16.1GB. [2025-04-25 04:16:00,004 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:16:00,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.26ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 88.6MB in the end (delta: 21.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-25 04:16:00,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.01ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 86.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:16:00,004 INFO L158 Benchmark]: Boogie Preprocessor took 30.73ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 85.7MB in the end (delta: 946.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:16:00,005 INFO L158 Benchmark]: RCFGBuilder took 295.23ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 66.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-25 04:16:00,005 INFO L158 Benchmark]: TraceAbstraction took 99700.27ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 66.3MB in the beginning and 379.3MB in the end (delta: -313.0MB). Peak memory consumption was 459.3MB. Max. memory is 16.1GB. [2025-04-25 04:16:00,005 INFO L158 Benchmark]: Witness Printer took 144.44ms. Allocated memory is still 595.6MB. Free memory was 379.3MB in the beginning and 356.3MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-25 04:16:00,006 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.26ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 88.6MB in the end (delta: 21.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.01ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 86.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.73ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 85.7MB in the end (delta: 946.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 295.23ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 66.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 99700.27ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 66.3MB in the beginning and 379.3MB in the end (delta: -313.0MB). Peak memory consumption was 459.3MB. Max. memory is 16.1GB. * Witness Printer took 144.44ms. Allocated memory is still 595.6MB. Free memory was 379.3MB in the beginning and 356.3MB in the end (delta: 23.0MB). 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: 164, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 164, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 164, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 164, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 164, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 164, unknown conditional: 0, unknown unconditional: 164] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 158, Positive conditional cache size: 0, Positive unconditional cache size: 158, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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: 0.0s, Number of persistent set computation: 14, Number of trivial persistent sets: 2, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 164, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 164, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 164, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 164, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 164, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 164, unknown conditional: 0, unknown unconditional: 164] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 158, Positive conditional cache size: 0, Positive unconditional cache size: 158, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - CounterExampleResult [Line: 753]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L754] 0 int _N; [L755] 0 atomic_int limit; [L772] 0 _N = 100 [L773] CALL 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1) [L750] COND FALSE 0 !(!cond) [L773] RET 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1) [L774] 0 pthread_t t1, t2; [L775] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0) VAL [\at(arg, Pre)={0:0}, _N=100, limit=0, t1=0] [L776] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0) VAL [\at(arg, Pre)={0:0}, _N=100, limit=0, t1=0, t2=1] [L757] COND FALSE 1 !(__VERIFIER_nondet_int()) [L760] 1 limit = _N + 1 VAL [\at(arg, Pre)={0:0}, _N=100, arg={0:0}, limit=101] [L765] 2 int i, bound; [L766] 2 bound = limit [L767] 2 i = 0 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=0, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=1, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=2, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=3, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=4, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=5, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=6, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=7, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=8, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=9, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=10, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=11, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=12, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=13, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=14, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=15, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=16, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=17, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=18, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=19, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=20, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=21, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=22, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=23, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=24, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=25, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=26, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=27, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=28, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=29, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=30, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=31, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=32, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=33, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=34, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=35, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=36, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=37, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=38, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=39, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=40, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=41, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=42, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=43, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=44, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=45, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=46, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=47, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=48, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=49, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=50, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=51, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=52, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=53, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=54, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=55, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=56, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=57, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=58, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=59, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=60, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=61, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=62, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=63, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=64, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=65, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=66, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=67, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=68, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=69, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=70, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=71, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=72, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=73, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=74, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=75, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=76, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=77, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=78, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=79, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=80, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=81, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=82, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=83, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=84, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=85, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=86, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=87, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=88, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=89, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=90, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=91, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=92, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=93, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=94, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=95, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=96, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=97, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=98, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=99, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=100, limit=101] [L767] COND TRUE 2 i < bound [L767] 2 i++ VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, _N=100, arg={0:0}, arg={0:0}, bound=101, i=101, limit=101] [L767] COND FALSE 2 !(i < bound) [L768] CALL 2 __VERIFIER_assert(i <= _N) [L753] COND TRUE 2 !expression VAL [\at(arg, Pre)={0:0}, \at(expression, Pre)=0, _N=100, arg={0:0}, expression=0, limit=101] [L753] 2 reach_error() VAL [\at(arg, Pre)={0:0}, \at(expression, Pre)=0, _N=100, arg={0:0}, expression=0, limit=101] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: f2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 37 locations, 42 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 99.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 71.4s, 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: 1213, 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, 0.3s SatisfiabilityAnalysisTime, 25.7s InterpolantComputationTime, 651 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 121 NumberOfCheckSat, 781 ConstructedInterpolants, 0 QuantifiedInterpolants, 3715 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1080 ConjunctsInSsa, 214 ConjunctsInUnsatCore, 22 InterpolantComputations, 1 PerfectInterpolantSequences, 135/17760 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! [2025-04-25 04:16:00,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 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