./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-easy1.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 42d87675 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/test-easy1.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-25 04:00:32,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 04:00:32,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-25 04:00:32,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 04:00:32,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 04:00:32,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 04:00:32,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 04:00:32,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 04:00:32,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 04:00:32,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 04:00:32,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 04:00:32,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 04:00:32,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 04:00:32,699 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 04:00:32,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 04:00:32,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 04:00:32,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 04:00:32,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 04:00:32,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 04:00:32,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 04:00:32,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 04:00:32,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 04:00:32,701 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 04:00:32,701 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 -> 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-04-25 04:00:32,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 04:00:32,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 04:00:32,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 04:00:32,924 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-25 04:00:32,924 INFO L274 PluginConnector]: CDTParser initialized [2025-04-25 04:00:32,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/test-easy1.wvr.c [2025-04-25 04:00:34,174 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8171aa8b9/641f458c40374facbda59b5ebeb1abf9/FLAG0c99a7b5c [2025-04-25 04:00:34,348 INFO L389 CDTParser]: Found 1 translation units. [2025-04-25 04:00:34,353 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy1.wvr.c [2025-04-25 04:00:34,365 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8171aa8b9/641f458c40374facbda59b5ebeb1abf9/FLAG0c99a7b5c [2025-04-25 04:00:35,224 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8171aa8b9/641f458c40374facbda59b5ebeb1abf9 [2025-04-25 04:00:35,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 04:00:35,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-25 04:00:35,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-25 04:00:35,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-25 04:00:35,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-25 04:00:35,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bba767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35, skipping insertion in model container [2025-04-25 04:00:35,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-25 04:00:35,417 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy1.wvr.c[1902,1915] [2025-04-25 04:00:35,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 04:00:35,430 INFO L200 MainTranslator]: Completed pre-run [2025-04-25 04:00:35,453 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy1.wvr.c[1902,1915] [2025-04-25 04:00:35,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 04:00:35,466 INFO L204 MainTranslator]: Completed translation [2025-04-25 04:00:35,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35 WrapperNode [2025-04-25 04:00:35,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-25 04:00:35,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 04:00:35,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 04:00:35,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 04:00:35,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,493 INFO L138 Inliner]: procedures = 20, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2025-04-25 04:00:35,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 04:00:35,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 04:00:35,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 04:00:35,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 04:00:35,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 04:00:35,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 04:00:35,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 04:00:35,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 04:00:35,522 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (1/1) ... [2025-04-25 04:00:35,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 04:00:35,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:00:35,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-25 04:00:35,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-25 04:00:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-25 04:00:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-25 04:00:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-25 04:00:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-25 04:00:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-25 04:00:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-25 04:00:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 04:00:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 04:00:35,570 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-25 04:00:35,630 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 04:00:35,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 04:00:35,722 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 04:00:35,722 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 04:00:35,789 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 04:00:35,791 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-25 04:00:35,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 04:00:35 BoogieIcfgContainer [2025-04-25 04:00:35,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 04:00:35,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 04:00:35,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 04:00:35,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 04:00:35,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.04 04:00:35" (1/3) ... [2025-04-25 04:00:35,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4051b561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 04:00:35, skipping insertion in model container [2025-04-25 04:00:35,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 04:00:35" (2/3) ... [2025-04-25 04:00:35,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4051b561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 04:00:35, skipping insertion in model container [2025-04-25 04:00:35,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 04:00:35" (3/3) ... [2025-04-25 04:00:35,800 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy1.wvr.c [2025-04-25 04:00:35,812 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 04:00:35,814 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy1.wvr.c that has 3 procedures, 17 locations, 16 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-25 04:00:35,814 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 04:00:35,854 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-25 04:00:35,890 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 04:00:35,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 04:00:35,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:00:35,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-25 04:00:35,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-25 04:00:35,938 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 04:00:35,946 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-25 04:00:35,952 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;@5957696b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 04:00:35,952 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-25 04:00:35,987 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:35,990 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash 936922396, now seen corresponding path program 1 times [2025-04-25 04:00:35,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:35,996 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656500798] [2025-04-25 04:00:35,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:00:35,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:36,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-25 04:00:36,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-25 04:00:36,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:00:36,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:36,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:36,164 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656500798] [2025-04-25 04:00:36,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656500798] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 04:00:36,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 04:00:36,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-25 04:00:36,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430299209] [2025-04-25 04:00:36,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 04:00:36,168 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 04:00:36,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:36,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 04:00:36,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 04:00:36,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,182 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:36,182 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:00:36,182 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,221 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,222 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 04:00:36,222 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:36,222 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:36,222 INFO L85 PathProgramCache]: Analyzing trace with hash 360480191, now seen corresponding path program 1 times [2025-04-25 04:00:36,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:36,222 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730544507] [2025-04-25 04:00:36,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:00:36,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:36,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-25 04:00:36,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-25 04:00:36,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:00:36,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:36,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:36,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:36,302 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730544507] [2025-04-25 04:00:36,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730544507] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 04:00:36,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 04:00:36,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 04:00:36,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328997606] [2025-04-25 04:00:36,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 04:00:36,303 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 04:00:36,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:36,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 04:00:36,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 04:00:36,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,303 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:36,304 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:00:36,304 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,304 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,372 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,372 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,372 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-25 04:00:36,373 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:36,373 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1446724198, now seen corresponding path program 1 times [2025-04-25 04:00:36,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:36,373 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132738654] [2025-04-25 04:00:36,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:00:36,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:36,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-25 04:00:36,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-25 04:00:36,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:00:36,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:36,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:36,449 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132738654] [2025-04-25 04:00:36,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132738654] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 04:00:36,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 04:00:36,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 04:00:36,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776836963] [2025-04-25 04:00:36,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 04:00:36,450 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 04:00:36,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:36,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 04:00:36,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 04:00:36,451 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,451 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:36,451 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:00:36,451 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,451 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,451 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,493 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,493 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,493 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:36,493 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-25 04:00:36,493 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:36,494 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:36,494 INFO L85 PathProgramCache]: Analyzing trace with hash -518120191, now seen corresponding path program 1 times [2025-04-25 04:00:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:36,494 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476380240] [2025-04-25 04:00:36,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 04:00:36,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:36,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-25 04:00:36,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 04:00:36,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 04:00:36,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:36,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:36,631 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476380240] [2025-04-25 04:00:36,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476380240] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 04:00:36,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 04:00:36,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-25 04:00:36,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539893612] [2025-04-25 04:00:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 04:00:36,631 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 04:00:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:36,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 04:00:36,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-04-25 04:00:36,632 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,632 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:36,632 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:00:36,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:36,632 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,679 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,679 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,679 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:36,679 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,679 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-25 04:00:36,679 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:36,679 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:36,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1796167046, now seen corresponding path program 2 times [2025-04-25 04:00:36,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:36,680 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15860243] [2025-04-25 04:00:36,680 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 04:00:36,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:36,687 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-04-25 04:00:36,693 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 04:00:36,694 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 04:00:36,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:36,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:36,749 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15860243] [2025-04-25 04:00:36,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15860243] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 04:00:36,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 04:00:36,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-25 04:00:36,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742913247] [2025-04-25 04:00:36,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 04:00:36,750 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 04:00:36,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:36,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 04:00:36,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-25 04:00:36,750 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,750 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:36,750 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:00:36,750 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,750 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,750 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:36,751 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,751 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:36,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:36,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:36,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:36,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:36,820 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-25 04:00:36,820 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:36,822 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:36,823 INFO L85 PathProgramCache]: Analyzing trace with hash -22576836, now seen corresponding path program 3 times [2025-04-25 04:00:36,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:36,823 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942293613] [2025-04-25 04:00:36,823 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 04:00:36,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:36,828 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 2 equivalence classes. [2025-04-25 04:00:36,834 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-04-25 04:00:36,835 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 04:00:36,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:36,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:36,945 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942293613] [2025-04-25 04:00:36,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942293613] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:00:36,945 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857533658] [2025-04-25 04:00:36,945 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 04:00:36,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:00:36,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:00:36,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:00:36,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-25 04:00:36,973 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 2 equivalence classes. [2025-04-25 04:00:36,983 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-04-25 04:00:36,983 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 04:00:36,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:36,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-25 04:00:36,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:00:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:37,139 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:00:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:37,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857533658] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:00:37,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:00:37,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 4] total 14 [2025-04-25 04:00:37,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927874163] [2025-04-25 04:00:37,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:00:37,193 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-25 04:00:37,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:37,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-25 04:00:37,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2025-04-25 04:00:37,194 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:37,194 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:37,194 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:00:37,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:37,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:37,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:37,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:37,301 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:37,301 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,301 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:37,301 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,301 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:37,301 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:37,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-25 04:00:37,506 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-04-25 04:00:37,506 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:37,506 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:37,506 INFO L85 PathProgramCache]: Analyzing trace with hash 680775071, now seen corresponding path program 4 times [2025-04-25 04:00:37,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:37,507 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369117682] [2025-04-25 04:00:37,507 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 04:00:37,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:37,511 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 18 statements into 2 equivalence classes. [2025-04-25 04:00:37,514 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-04-25 04:00:37,514 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-25 04:00:37,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:37,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:37,573 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369117682] [2025-04-25 04:00:37,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369117682] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:00:37,573 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800006024] [2025-04-25 04:00:37,573 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 04:00:37,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:00:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:00:37,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:00:37,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-25 04:00:37,603 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 18 statements into 2 equivalence classes. [2025-04-25 04:00:37,614 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-04-25 04:00:37,614 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-25 04:00:37,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:37,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 04:00:37,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:00:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:37,681 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 04:00:37,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 04:00:37,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800006024] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 04:00:37,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 04:00:37,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-04-25 04:00:37,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554216253] [2025-04-25 04:00:37,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 04:00:37,746 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-25 04:00:37,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:37,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-25 04:00:37,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2025-04-25 04:00:37,746 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:37,746 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:37,746 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 04:00:37,746 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:37,746 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,746 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:37,746 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,746 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:37,746 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:37,746 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:37,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:37,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:37,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:37,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:37,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 04:00:37,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 04:00:37,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-25 04:00:38,077 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:00:38,078 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 04:00:38,078 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 04:00:38,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1049631, now seen corresponding path program 5 times [2025-04-25 04:00:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 04:00:38,078 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450192457] [2025-04-25 04:00:38,078 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 04:00:38,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 04:00:38,086 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-04-25 04:00:38,091 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-04-25 04:00:38,091 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 04:00:38,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-25 04:00:38,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 04:00:38,168 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450192457] [2025-04-25 04:00:38,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450192457] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 04:00:38,168 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787795981] [2025-04-25 04:00:38,168 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 04:00:38,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:00:38,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 04:00:38,170 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 04:00:38,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-25 04:00:38,195 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-04-25 04:00:38,207 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-04-25 04:00:38,208 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 04:00:38,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 04:00:38,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 04:00:38,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 04:00:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-25 04:00:38,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-25 04:00:38,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787795981] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 04:00:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-25 04:00:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-04-25 04:00:38,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851951722] [2025-04-25 04:00:38,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 04:00:38,244 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 04:00:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 04:00:38,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 04:00:38,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-04-25 04:00:38,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:38,244 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 04:00:38,245 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 04:00:38,245 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 04:00:38,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 04:00:38,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:38,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 04:00:38,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 04:00:38,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 04:00:38,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 04:00:38,358 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 04:00:38,358 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 04:00:38,360 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-25 04:00:38,360 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-25 04:00:38,360 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-25 04:00:38,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-25 04:00:38,561 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 04:00:38,566 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2025-04-25 04:00:38,568 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-25 04:00:38,568 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-25 04:00:38,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-25 04:00:38,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.04 04:00:38 BasicIcfg [2025-04-25 04:00:38,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-25 04:00:38,577 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-25 04:00:38,577 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-25 04:00:38,577 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-25 04:00:38,577 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 04:00:35" (3/4) ... [2025-04-25 04:00:38,579 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-25 04:00:38,580 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-04-25 04:00:38,580 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-04-25 04:00:38,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2025-04-25 04:00:38,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-04-25 04:00:38,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-25 04:00:38,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-25 04:00:38,644 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-25 04:00:38,645 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-25 04:00:38,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-25 04:00:38,646 INFO L158 Benchmark]: Toolchain (without parser) took 3418.07ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 87.1MB in the end (delta: 19.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2025-04-25 04:00:38,646 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:00:38,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.29ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 93.1MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-25 04:00:38,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.80ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 90.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:00:38,647 INFO L158 Benchmark]: Boogie Preprocessor took 26.19ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 89.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:00:38,647 INFO L158 Benchmark]: RCFGBuilder took 270.25ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 70.8MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-25 04:00:38,647 INFO L158 Benchmark]: TraceAbstraction took 2783.22ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 92.0MB in the end (delta: -22.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:00:38,647 INFO L158 Benchmark]: Witness Printer took 68.44ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 87.1MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 04:00:38,648 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 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.29ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 93.1MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.80ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 90.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.19ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 89.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 270.25ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 70.8MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2783.22ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 92.0MB in the end (delta: -22.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.44ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 87.1MB in the end (delta: 4.9MB). There was no memory consumed. 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: 90, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 90, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 90, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 90, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 90, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 90, unknown conditional: 0, unknown unconditional: 90] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 18, Number of trivial persistent sets: 13, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 90, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 90, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 90, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 90, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 90, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 90, unknown conditional: 0, unknown unconditional: 90] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - PositiveResult [Line: 70]: 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: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 25 locations, 28 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.6s, 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: 54, 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, 1.0s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 1 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 22/32 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-25 04:00:38,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE