./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-atomic/szymanski.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 a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 17:06:43,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 17:06:43,881 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 17:06:43,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 17:06:43,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 17:06:43,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 17:06:43,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 17:06:43,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 17:06:43,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 17:06:43,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 17:06:43,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 17:06:43,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 17:06:43,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 17:06:43,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 17:06:43,917 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 17:06:43,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 17:06:43,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 17:06:43,917 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 17:06:43,917 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 17:06:43,917 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 -> a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 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 -> SLEEP_NEW_STATES [2025-03-19 17:06:44,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 17:06:44,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 17:06:44,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 17:06:44,144 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 17:06:44,144 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 17:06:44,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-atomic/szymanski.i [2025-03-19 17:06:45,407 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/771103f46/fbcb69b44be44c9891ce83d2cbc8983e/FLAG110efd97d [2025-03-19 17:06:45,626 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 17:06:45,629 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i [2025-03-19 17:06:45,644 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/771103f46/fbcb69b44be44c9891ce83d2cbc8983e/FLAG110efd97d [2025-03-19 17:06:46,458 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/771103f46/fbcb69b44be44c9891ce83d2cbc8983e [2025-03-19 17:06:46,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 17:06:46,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 17:06:46,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 17:06:46,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 17:06:46,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 17:06:46,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee0fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46, skipping insertion in model container [2025-03-19 17:06:46,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 17:06:46,745 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2025-03-19 17:06:46,752 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2025-03-19 17:06:46,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 17:06:46,762 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 17:06:46,818 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2025-03-19 17:06:46,820 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2025-03-19 17:06:46,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 17:06:46,846 INFO L204 MainTranslator]: Completed translation [2025-03-19 17:06:46,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46 WrapperNode [2025-03-19 17:06:46,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 17:06:46,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 17:06:46,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 17:06:46,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 17:06:46,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,873 INFO L138 Inliner]: procedures = 166, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2025-03-19 17:06:46,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 17:06:46,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 17:06:46,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 17:06:46,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 17:06:46,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,886 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 17:06:46,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 17:06:46,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 17:06:46,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 17:06:46,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (1/1) ... [2025-03-19 17:06:46,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 17:06:46,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 17:06:46,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 17:06:46,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 17:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2025-03-19 17:06:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2025-03-19 17:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-19 17:06:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-19 17:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 17:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 17:06:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 17:06:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 17:06:46,943 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 17:06:47,023 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 17:06:47,024 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 17:06:47,126 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 17:06:47,127 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 17:06:47,182 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 17:06:47,182 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 17:06:47,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 05:06:47 BoogieIcfgContainer [2025-03-19 17:06:47,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 17:06:47,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 17:06:47,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 17:06:47,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 17:06:47,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 05:06:46" (1/3) ... [2025-03-19 17:06:47,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb18a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 05:06:47, skipping insertion in model container [2025-03-19 17:06:47,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 05:06:46" (2/3) ... [2025-03-19 17:06:47,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb18a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 05:06:47, skipping insertion in model container [2025-03-19 17:06:47,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 05:06:47" (3/3) ... [2025-03-19 17:06:47,189 INFO L128 eAbstractionObserver]: Analyzing ICFG szymanski.i [2025-03-19 17:06:47,199 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 17:06:47,201 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG szymanski.i that has 3 procedures, 41 locations, 50 edges, 1 initial locations, 8 loop locations, and 2 error locations. [2025-03-19 17:06:47,201 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 17:06:47,243 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-19 17:06:47,279 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 17:06:47,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 17:06:47,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 17:06:47,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-03-19 17:06:47,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-03-19 17:06:47,330 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 17:06:47,335 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork1 ======== [2025-03-19 17:06:47,340 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;@1223ac3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 17:06:47,340 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-19 17:06:47,438 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:47,441 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:47,442 INFO L85 PathProgramCache]: Analyzing trace with hash -99625942, now seen corresponding path program 1 times [2025-03-19 17:06:47,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:47,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74145777] [2025-03-19 17:06:47,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:47,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-19 17:06:47,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-19 17:06:47,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:47,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:47,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:47,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:47,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74145777] [2025-03-19 17:06:47,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74145777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:47,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:47,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783244865] [2025-03-19 17:06:47,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:47,673 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:47,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:47,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:47,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:47,688 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:47,689 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:47,690 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:47,690 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:47,757 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:47,757 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 17:06:47,757 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:47,757 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1170320848, now seen corresponding path program 1 times [2025-03-19 17:06:47,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:47,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532425718] [2025-03-19 17:06:47,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:47,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:47,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-19 17:06:47,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-19 17:06:47,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:47,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:47,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:47,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532425718] [2025-03-19 17:06:47,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532425718] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:47,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:47,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:47,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515602559] [2025-03-19 17:06:47,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:47,840 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:47,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:47,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:47,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:47,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:47,842 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:47,842 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:47,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:47,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:47,902 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:47,903 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:47,904 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 17:06:47,904 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:47,904 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:47,905 INFO L85 PathProgramCache]: Analyzing trace with hash 840442963, now seen corresponding path program 1 times [2025-03-19 17:06:47,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:47,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911072516] [2025-03-19 17:06:47,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:47,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:47,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-19 17:06:47,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-19 17:06:47,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:47,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:47,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:47,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911072516] [2025-03-19 17:06:47,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911072516] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:47,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:47,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367079364] [2025-03-19 17:06:47,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:47,969 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:47,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:47,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:47,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:47,969 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:47,969 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:47,969 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:47,970 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:47,970 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:47,970 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,040 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-19 17:06:48,041 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,041 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1233040161, now seen corresponding path program 1 times [2025-03-19 17:06:48,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606450360] [2025-03-19 17:06:48,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-19 17:06:48,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-19 17:06:48,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606450360] [2025-03-19 17:06:48,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606450360] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693797860] [2025-03-19 17:06:48,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,094 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,094 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,094 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,095 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,095 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,172 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,174 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,174 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,174 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,174 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-19 17:06:48,174 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,174 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1434156940, now seen corresponding path program 1 times [2025-03-19 17:06:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684886863] [2025-03-19 17:06:48,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-19 17:06:48,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-19 17:06:48,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684886863] [2025-03-19 17:06:48,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684886863] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210453519] [2025-03-19 17:06:48,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,205 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,205 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,205 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,206 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,206 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,206 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,206 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,206 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,206 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,263 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,263 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,263 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,263 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,263 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-19 17:06:48,263 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,263 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,263 INFO L85 PathProgramCache]: Analyzing trace with hash 720290636, now seen corresponding path program 1 times [2025-03-19 17:06:48,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572916108] [2025-03-19 17:06:48,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-19 17:06:48,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-19 17:06:48,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572916108] [2025-03-19 17:06:48,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572916108] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319861821] [2025-03-19 17:06:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,306 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,306 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,306 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,306 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,306 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,306 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,306 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,306 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,306 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,306 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,370 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,371 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-19 17:06:48,372 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,372 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2106302563, now seen corresponding path program 1 times [2025-03-19 17:06:48,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012086536] [2025-03-19 17:06:48,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-19 17:06:48,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 17:06:48,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012086536] [2025-03-19 17:06:48,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012086536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719624037] [2025-03-19 17:06:48,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,418 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,419 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,419 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,419 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,484 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,484 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,484 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,484 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,484 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,484 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,485 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,485 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-19 17:06:48,486 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,486 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,486 INFO L85 PathProgramCache]: Analyzing trace with hash -755987768, now seen corresponding path program 1 times [2025-03-19 17:06:48,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874626944] [2025-03-19 17:06:48,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-19 17:06:48,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-19 17:06:48,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874626944] [2025-03-19 17:06:48,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874626944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179994914] [2025-03-19 17:06:48,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,523 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,524 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,524 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,524 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,525 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,525 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,525 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,525 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,525 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,525 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,525 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,595 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-19 17:06:48,596 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,596 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,596 INFO L85 PathProgramCache]: Analyzing trace with hash -957293853, now seen corresponding path program 1 times [2025-03-19 17:06:48,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57678039] [2025-03-19 17:06:48,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-19 17:06:48,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-19 17:06:48,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57678039] [2025-03-19 17:06:48,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57678039] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213164958] [2025-03-19 17:06:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,631 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,631 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,631 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,631 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,631 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,631 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,762 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-19 17:06:48,762 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-19 17:06:48,765 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-19 17:06:48,768 INFO L320 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was SAFE (1/3) [2025-03-19 17:06:48,771 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 17:06:48,774 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 17:06:48,774 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 17:06:48,775 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;@1223ac3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 17:06:48,775 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-19 17:06:48,778 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-03-19 17:06:48,780 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-03-19 17:06:48,781 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-03-19 17:06:48,781 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2025-03-19 17:06:48,782 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 17:06:48,783 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 17:06:48,784 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork0 ======== [2025-03-19 17:06:48,784 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;@1223ac3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 17:06:48,784 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-19 17:06:48,788 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,790 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1320449317, now seen corresponding path program 1 times [2025-03-19 17:06:48,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896517423] [2025-03-19 17:06:48,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-19 17:06:48,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-19 17:06:48,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896517423] [2025-03-19 17:06:48,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896517423] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454647786] [2025-03-19 17:06:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,838 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,838 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,838 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,838 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,858 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,859 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-19 17:06:48,859 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,859 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1515911638, now seen corresponding path program 1 times [2025-03-19 17:06:48,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995588687] [2025-03-19 17:06:48,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-19 17:06:48,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-19 17:06:48,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995588687] [2025-03-19 17:06:48,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995588687] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220757165] [2025-03-19 17:06:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,883 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,884 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,884 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,884 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,884 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,899 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,900 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,900 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-19 17:06:48,900 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,900 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1919530882, now seen corresponding path program 1 times [2025-03-19 17:06:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608042743] [2025-03-19 17:06:48,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-19 17:06:48,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 17:06:48,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:48,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:48,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608042743] [2025-03-19 17:06:48,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608042743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:48,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:48,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:48,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112705524] [2025-03-19 17:06:48,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:48,930 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:48,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:48,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:48,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:48,931 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,931 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:48,931 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:48,931 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,932 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,932 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:48,973 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,973 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,973 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:48,973 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-19 17:06:48,973 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:48,973 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:48,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1676526674, now seen corresponding path program 1 times [2025-03-19 17:06:48,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:48,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763883409] [2025-03-19 17:06:48,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:48,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:48,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-19 17:06:48,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-19 17:06:48,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:48,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:49,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:49,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763883409] [2025-03-19 17:06:49,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763883409] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:49,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:49,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:49,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968763569] [2025-03-19 17:06:49,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:49,004 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:49,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:49,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:49,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:49,005 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,005 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:49,005 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:49,005 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,005 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,006 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,006 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,040 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-19 17:06:49,040 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:49,040 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:49,040 INFO L85 PathProgramCache]: Analyzing trace with hash 11454073, now seen corresponding path program 1 times [2025-03-19 17:06:49,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:49,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196914217] [2025-03-19 17:06:49,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:49,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:49,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-19 17:06:49,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-19 17:06:49,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:49,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:49,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:49,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196914217] [2025-03-19 17:06:49,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196914217] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:49,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:49,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:49,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717772904] [2025-03-19 17:06:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:49,069 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:49,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:49,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:49,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:49,070 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,070 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:49,070 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:49,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,097 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,097 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-19 17:06:49,097 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:49,097 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash -929816415, now seen corresponding path program 1 times [2025-03-19 17:06:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:49,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367329705] [2025-03-19 17:06:49,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:49,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:49,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-19 17:06:49,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-19 17:06:49,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:49,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:49,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:49,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367329705] [2025-03-19 17:06:49,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367329705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:49,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:49,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:49,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267711793] [2025-03-19 17:06:49,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:49,118 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:49,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:49,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:49,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:49,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,118 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:49,118 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:49,118 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,119 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,119 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,119 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,119 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,119 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,151 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-19 17:06:49,151 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:49,151 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1198500778, now seen corresponding path program 1 times [2025-03-19 17:06:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:49,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155697480] [2025-03-19 17:06:49,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:49,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:49,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-19 17:06:49,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-19 17:06:49,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:49,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:49,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:49,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155697480] [2025-03-19 17:06:49,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155697480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:49,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:49,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:49,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920949692] [2025-03-19 17:06:49,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:49,176 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:49,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:49,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:49,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:49,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,176 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:49,176 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:49,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,177 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,177 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,177 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,215 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,216 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-19 17:06:49,216 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:49,217 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:49,217 INFO L85 PathProgramCache]: Analyzing trace with hash 441934503, now seen corresponding path program 1 times [2025-03-19 17:06:49,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:49,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013895244] [2025-03-19 17:06:49,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:49,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:49,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-19 17:06:49,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-19 17:06:49,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:49,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:49,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:49,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013895244] [2025-03-19 17:06:49,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013895244] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:49,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:49,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:49,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13315691] [2025-03-19 17:06:49,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:49,235 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:49,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:49,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:49,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:49,235 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,235 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:49,235 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:49,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,299 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,299 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-19 17:06:49,299 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 17:06:49,299 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 17:06:49,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2059449390, now seen corresponding path program 1 times [2025-03-19 17:06:49,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 17:06:49,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110870919] [2025-03-19 17:06:49,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 17:06:49,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 17:06:49,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-19 17:06:49,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-19 17:06:49,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 17:06:49,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 17:06:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 17:06:49,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 17:06:49,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110870919] [2025-03-19 17:06:49,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110870919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 17:06:49,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 17:06:49,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 17:06:49,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312990634] [2025-03-19 17:06:49,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 17:06:49,336 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 17:06:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 17:06:49,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 17:06:49,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 17:06:49,337 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,337 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 17:06:49,337 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,337 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 17:06:49,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,400 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,400 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,400 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,400 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 17:06:49,400 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-19 17:06:49,400 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-19 17:06:49,400 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-19 17:06:49,400 INFO L320 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork0 was SAFE (3/3) [2025-03-19 17:06:49,401 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-19 17:06:49,401 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-19 17:06:49,410 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 [2025-03-19 17:06:49,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 05:06:49 BasicIcfg [2025-03-19 17:06:49,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-19 17:06:49,412 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-19 17:06:49,412 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-19 17:06:49,412 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-19 17:06:49,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 05:06:47" (3/4) ... [2025-03-19 17:06:49,414 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-19 17:06:49,416 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2025-03-19 17:06:49,416 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2025-03-19 17:06:49,418 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-19 17:06:49,418 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-19 17:06:49,418 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-19 17:06:49,418 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-19 17:06:49,465 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-19 17:06:49,465 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-19 17:06:49,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-19 17:06:49,468 INFO L158 Benchmark]: Toolchain (without parser) took 3004.56ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.1MB in the beginning and 51.3MB in the end (delta: 6.8MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2025-03-19 17:06:49,468 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.4MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 17:06:49,468 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.24ms. Allocated memory is still 83.9MB. Free memory was 57.8MB in the beginning and 35.3MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-19 17:06:49,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.45ms. Allocated memory is still 83.9MB. Free memory was 35.3MB in the beginning and 33.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 17:06:49,469 INFO L158 Benchmark]: Boogie Preprocessor took 26.66ms. Allocated memory is still 83.9MB. Free memory was 33.8MB in the beginning and 32.9MB in the end (delta: 911.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 17:06:49,469 INFO L158 Benchmark]: RCFGBuilder took 281.58ms. Allocated memory is still 83.9MB. Free memory was 32.9MB in the beginning and 54.9MB in the end (delta: -22.0MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2025-03-19 17:06:49,469 INFO L158 Benchmark]: TraceAbstraction took 2227.38ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 54.4MB in the beginning and 56.3MB in the end (delta: -2.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2025-03-19 17:06:49,469 INFO L158 Benchmark]: Witness Printer took 53.50ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 51.3MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-19 17:06:49,470 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.4MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.24ms. Allocated memory is still 83.9MB. Free memory was 57.8MB in the beginning and 35.3MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.45ms. Allocated memory is still 83.9MB. Free memory was 35.3MB in the beginning and 33.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.66ms. Allocated memory is still 83.9MB. Free memory was 33.8MB in the beginning and 32.9MB in the end (delta: 911.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.58ms. Allocated memory is still 83.9MB. Free memory was 32.9MB in the beginning and 54.9MB in the end (delta: -22.0MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2227.38ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 54.4MB in the beginning and 56.3MB in the end (delta: -2.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 53.50ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 51.3MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. 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: 3013, independent: 2181, independent conditional: 2181, independent unconditional: 0, dependent: 832, dependent conditional: 832, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2381, independent: 2181, independent conditional: 0, independent unconditional: 2181, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 351, independent: 308, independent conditional: 0, independent unconditional: 308, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 351, independent: 262, independent conditional: 0, independent unconditional: 262, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 89, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 89, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 281, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 2381, independent: 1873, independent conditional: 0, independent unconditional: 1873, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 351, unknown conditional: 0, unknown unconditional: 351] , Statistics on independence cache: Total cache size (in pairs): 351, Positive cache size: 308, Positive conditional cache size: 0, Positive unconditional cache size: 308, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 632 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 60, independent: 44, independent conditional: 44, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 44, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 18, unknown conditional: 0, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 369, Positive cache size: 326, Positive conditional cache size: 0, Positive unconditional cache size: 326, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 16 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3123, independent: 2256, independent conditional: 2256, independent unconditional: 0, dependent: 867, dependent conditional: 867, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2458, independent: 2256, independent conditional: 0, independent unconditional: 2256, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 2458, independent: 2182, independent conditional: 0, independent unconditional: 2182, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 447, Positive cache size: 400, Positive conditional cache size: 0, Positive unconditional cache size: 400, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 665 - PositiveResult [Line: 744]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 760]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 75 locations, 98 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 27, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 281 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 75 locations, 98 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, 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: 0, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 75 locations, 98 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, 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: 27, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 234 ConstructedInterpolants, 0 QuantifiedInterpolants, 310 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-19 17:06:49,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE