./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-misc-3-extended.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 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/weaver/parallel-misc-3-extended.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 8cea87724a542982ff884c708bfc22195aa1904db80300e5b965108c3d86cb2f --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-20 03:33:27,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-20 03:33:27,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-20 03:33:27,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-20 03:33:27,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-20 03:33:27,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-20 03:33:27,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-20 03:33:27,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-20 03:33:27,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-20 03:33:27,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-20 03:33:27,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-20 03:33:27,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-20 03:33:27,206 INFO L153 SettingsManager]: * Use SBE=true [2025-03-20 03:33:27,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-20 03:33:27,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-20 03:33:27,207 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-20 03:33:27,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-20 03:33:27,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-20 03:33:27,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-20 03:33:27,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-20 03:33:27,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-20 03:33:27,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-20 03:33:27,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 03:33:27,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-20 03:33:27,209 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-20 03:33:27,210 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-20 03:33:27,210 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 -> 8cea87724a542982ff884c708bfc22195aa1904db80300e5b965108c3d86cb2f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-03-20 03:33:27,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-20 03:33:27,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-20 03:33:27,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-20 03:33:27,436 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-20 03:33:27,436 INFO L274 PluginConnector]: CDTParser initialized [2025-03-20 03:33:27,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2025-03-20 03:33:28,759 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/067c542f4/6de4e0854d544b7dba06d706684fc903/FLAGdff5c532c [2025-03-20 03:33:28,922 INFO L389 CDTParser]: Found 1 translation units. [2025-03-20 03:33:28,923 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2025-03-20 03:33:28,930 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/067c542f4/6de4e0854d544b7dba06d706684fc903/FLAGdff5c532c [2025-03-20 03:33:29,761 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/067c542f4/6de4e0854d544b7dba06d706684fc903 [2025-03-20 03:33:29,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-20 03:33:29,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-20 03:33:29,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-20 03:33:29,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-20 03:33:29,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-20 03:33:29,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:29,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a53a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29, skipping insertion in model container [2025-03-20 03:33:29,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:29,778 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-20 03:33:29,920 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/weaver/parallel-misc-3-extended.wvr.c[2421,2434] [2025-03-20 03:33:29,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 03:33:29,931 INFO L200 MainTranslator]: Completed pre-run [2025-03-20 03:33:29,962 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/weaver/parallel-misc-3-extended.wvr.c[2421,2434] [2025-03-20 03:33:29,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 03:33:29,972 INFO L204 MainTranslator]: Completed translation [2025-03-20 03:33:29,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29 WrapperNode [2025-03-20 03:33:29,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-20 03:33:29,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-20 03:33:29,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-20 03:33:29,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-20 03:33:29,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:29,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:29,997 INFO L138 Inliner]: procedures = 19, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2025-03-20 03:33:29,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-20 03:33:29,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-20 03:33:29,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-20 03:33:29,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-20 03:33:30,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,007 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-20 03:33:30,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-20 03:33:30,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-20 03:33:30,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-20 03:33:30,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (1/1) ... [2025-03-20 03:33:30,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 03:33:30,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:33:30,041 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) [2025-03-20 03:33:30,043 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 [2025-03-20 03:33:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-20 03:33:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-20 03:33:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-20 03:33:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-20 03:33:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-20 03:33:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-20 03:33:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-20 03:33:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-20 03:33:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-20 03:33:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-20 03:33:30,062 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-20 03:33:30,121 INFO L234 CfgBuilder]: Building ICFG [2025-03-20 03:33:30,123 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-20 03:33:30,259 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-20 03:33:30,260 INFO L283 CfgBuilder]: Performing block encoding [2025-03-20 03:33:30,345 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-20 03:33:30,345 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-20 03:33:30,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:33:30 BoogieIcfgContainer [2025-03-20 03:33:30,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-20 03:33:30,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-20 03:33:30,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-20 03:33:30,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-20 03:33:30,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:33:29" (1/3) ... [2025-03-20 03:33:30,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773e8e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:33:30, skipping insertion in model container [2025-03-20 03:33:30,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:33:29" (2/3) ... [2025-03-20 03:33:30,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773e8e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:33:30, skipping insertion in model container [2025-03-20 03:33:30,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:33:30" (3/3) ... [2025-03-20 03:33:30,352 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2025-03-20 03:33:30,361 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-20 03:33:30,363 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-3-extended.wvr.c that has 4 procedures, 37 locations, 39 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-20 03:33:30,363 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-20 03:33:30,412 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-20 03:33:30,442 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 03:33:30,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-20 03:33:30,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:33:30,444 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) [2025-03-20 03:33:30,446 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 [2025-03-20 03:33:30,500 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 03:33:30,508 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-20 03:33:30,513 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;@57a057c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 03:33:30,514 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-20 03:33:30,898 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-20 03:33:30,901 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:33:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash -860940896, now seen corresponding path program 1 times [2025-03-20 03:33:30,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:33:30,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578187238] [2025-03-20 03:33:30,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:33:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:33:30,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-20 03:33:31,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-20 03:33:31,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:33:31,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 03:33:31,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:33:31,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578187238] [2025-03-20 03:33:31,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578187238] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:33:31,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:33:31,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:33:31,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449622176] [2025-03-20 03:33:31,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:33:31,543 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:33:31,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:33:31,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:33:31,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:33:31,558 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:31,559 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:33:31,560 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2025-03-20 03:33:31,560 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:31,644 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:31,644 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-20 03:33:31,644 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-20 03:33:31,645 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:33:31,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1517332499, now seen corresponding path program 2 times [2025-03-20 03:33:31,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:33:31,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129989700] [2025-03-20 03:33:31,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 03:33:31,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:33:31,660 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-03-20 03:33:31,698 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 49 of 62 statements. [2025-03-20 03:33:31,699 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-20 03:33:31,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:33:31,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:33:31,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129989700] [2025-03-20 03:33:31,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129989700] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:33:31,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:33:31,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:33:31,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21903599] [2025-03-20 03:33:31,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:33:31,838 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:33:31,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:33:31,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:33:31,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:33:31,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:31,839 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:33:31,839 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-03-20 03:33:31,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:31,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:31,904 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:31,905 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:31,905 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-20 03:33:31,905 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-20 03:33:31,906 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:33:31,906 INFO L85 PathProgramCache]: Analyzing trace with hash -616571064, now seen corresponding path program 1 times [2025-03-20 03:33:31,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:33:31,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087542209] [2025-03-20 03:33:31,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:33:31,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:33:31,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-20 03:33:31,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-20 03:33:31,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:33:31,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:32,120 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-20 03:33:32,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:33:32,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087542209] [2025-03-20 03:33:32,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087542209] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:33:32,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:33:32,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:33:32,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488842739] [2025-03-20 03:33:32,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:33:32,121 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:33:32,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:33:32,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:33:32,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:33:32,121 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:32,121 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:33:32,121 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2025-03-20 03:33:32,121 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,121 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,121 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:32,192 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,192 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,193 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,193 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-20 03:33:32,193 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-20 03:33:32,193 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:33:32,193 INFO L85 PathProgramCache]: Analyzing trace with hash -995442999, now seen corresponding path program 3 times [2025-03-20 03:33:32,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:33:32,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403197764] [2025-03-20 03:33:32,194 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-20 03:33:32,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:33:32,212 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 108 statements into 3 equivalence classes. [2025-03-20 03:33:32,289 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 86 of 108 statements. [2025-03-20 03:33:32,289 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-20 03:33:32,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-20 03:33:32,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:33:32,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403197764] [2025-03-20 03:33:32,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403197764] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-20 03:33:32,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863999728] [2025-03-20 03:33:32,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-20 03:33:32,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:33:32,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:33:32,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-20 03:33:32,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-20 03:33:32,749 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 108 statements into 3 equivalence classes. [2025-03-20 03:33:32,784 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 86 of 108 statements. [2025-03-20 03:33:32,785 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-20 03:33:32,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:32,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-20 03:33:32,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:33:32,874 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-20 03:33:32,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:33:32,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863999728] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:33:32,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-20 03:33:32,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-03-20 03:33:32,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595408748] [2025-03-20 03:33:32,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:33:32,876 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-20 03:33:32,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:33:32,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-20 03:33:32,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-20 03:33:32,877 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:32,877 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:33:32,877 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2025-03-20 03:33:32,877 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,878 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,878 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:32,878 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:33,036 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:33,037 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:33,037 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:33,037 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:33,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-20 03:33:33,241 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:33:33,241 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-20 03:33:33,241 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:33:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1177332787, now seen corresponding path program 4 times [2025-03-20 03:33:33,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:33:33,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988118594] [2025-03-20 03:33:33,242 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-20 03:33:33,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:33:33,253 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 88 statements into 2 equivalence classes. [2025-03-20 03:33:33,267 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-20 03:33:33,267 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-20 03:33:33,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-20 03:33:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:33:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988118594] [2025-03-20 03:33:33,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988118594] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-20 03:33:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141605610] [2025-03-20 03:33:33,642 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-20 03:33:33,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:33:33,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:33:33,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-20 03:33:33,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-20 03:33:33,693 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 88 statements into 2 equivalence classes. [2025-03-20 03:33:33,726 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-20 03:33:33,727 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-20 03:33:33,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:33,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-20 03:33:33,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:33:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-20 03:33:33,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 03:33:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-20 03:33:33,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141605610] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-20 03:33:33,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-20 03:33:33,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-03-20 03:33:33,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123232098] [2025-03-20 03:33:33,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-20 03:33:33,942 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-20 03:33:33,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:33:33,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-20 03:33:33,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-20 03:33:33,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:33,942 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:33:33,943 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 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) [2025-03-20 03:33:33,943 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:33,943 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:33,943 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:33,943 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:33,943 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:34,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:34,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:34,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-20 03:33:34,326 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:33:34,327 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-20 03:33:34,327 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:33:34,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1796244977, now seen corresponding path program 5 times [2025-03-20 03:33:34,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:33:34,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210365815] [2025-03-20 03:33:34,327 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-20 03:33:34,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:33:34,337 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 84 statements into 5 equivalence classes. [2025-03-20 03:33:34,381 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 84 of 84 statements. [2025-03-20 03:33:34,382 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-03-20 03:33:34,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:33:34,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:33:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210365815] [2025-03-20 03:33:34,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210365815] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:33:34,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:33:34,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-20 03:33:34,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499859933] [2025-03-20 03:33:34,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:33:34,843 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-20 03:33:34,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:33:34,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-20 03:33:34,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-20 03:33:34,844 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:34,844 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:33:34,845 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-03-20 03:33:34,845 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,845 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,845 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,845 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:34,845 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:34,845 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:34,919 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:34,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:34,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:34,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:33:34,922 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-20 03:33:34,922 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-20 03:33:34,922 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:33:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash -542307790, now seen corresponding path program 6 times [2025-03-20 03:33:34,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:33:34,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182996838] [2025-03-20 03:33:34,923 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-20 03:33:34,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:33:34,933 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 85 statements into 4 equivalence classes. [2025-03-20 03:33:34,952 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 76 of 85 statements. [2025-03-20 03:33:34,952 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-20 03:33:34,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:33:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-20 03:33:35,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:33:35,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182996838] [2025-03-20 03:33:35,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182996838] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:33:35,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:33:35,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:33:35,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786754372] [2025-03-20 03:33:35,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:33:35,131 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:33:35,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:33:35,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:33:35,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:33:35,132 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:35,132 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:33:35,132 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2025-03-20 03:33:35,132 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:35,132 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:35,132 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:35,132 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:35,132 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:35,132 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:33:35,132 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:33:35,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:35,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:35,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:35,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:35,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-20 03:33:35,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:33:35,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:33:35,441 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-03-20 03:33:35,441 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-20 03:33:35,441 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-20 03:33:35,442 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-20 03:33:35,442 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-20 03:33:35,445 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1] [2025-03-20 03:33:35,447 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-20 03:33:35,447 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-20 03:33:35,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-03-20 03:33:35,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:33:35 BasicIcfg [2025-03-20 03:33:35,455 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-20 03:33:35,455 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-20 03:33:35,455 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-20 03:33:35,455 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-20 03:33:35,456 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:33:30" (3/4) ... [2025-03-20 03:33:35,458 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-20 03:33:35,459 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-20 03:33:35,460 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-20 03:33:35,460 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-20 03:33:35,462 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2025-03-20 03:33:35,462 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-03-20 03:33:35,462 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-20 03:33:35,462 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-20 03:33:35,506 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-20 03:33:35,506 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-20 03:33:35,506 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-20 03:33:35,507 INFO L158 Benchmark]: Toolchain (without parser) took 5742.79ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 92.0MB in the beginning and 168.7MB in the end (delta: -76.7MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2025-03-20 03:33:35,507 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 03:33:35,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.76ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 77.3MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-20 03:33:35,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.65ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 03:33:35,508 INFO L158 Benchmark]: Boogie Preprocessor took 19.38ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 75.0MB in the end (delta: 957.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 03:33:35,508 INFO L158 Benchmark]: RCFGBuilder took 326.81ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 51.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-20 03:33:35,508 INFO L158 Benchmark]: TraceAbstraction took 5107.88ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 50.6MB in the beginning and 173.5MB in the end (delta: -122.9MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. [2025-03-20 03:33:35,508 INFO L158 Benchmark]: Witness Printer took 50.95ms. Allocated memory is still 243.3MB. Free memory was 173.5MB in the beginning and 168.7MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-20 03:33:35,509 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 is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.76ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 77.3MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.65ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.38ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 75.0MB in the end (delta: 957.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 326.81ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 51.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5107.88ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 50.6MB in the beginning and 173.5MB in the end (delta: -122.9MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. * Witness Printer took 50.95ms. Allocated memory is still 243.3MB. Free memory was 173.5MB in the beginning and 168.7MB in the end (delta: 4.8MB). 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: 1429, independent: 1409, independent conditional: 0, independent unconditional: 1409, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1429, independent: 1409, independent conditional: 0, independent unconditional: 1409, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 966, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 966, independent: 936, independent conditional: 0, independent unconditional: 936, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 265, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1429, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 966, unknown conditional: 0, unknown unconditional: 966] , Statistics on independence cache: Total cache size (in pairs): 966, Positive cache size: 946, Positive conditional cache size: 0, Positive unconditional cache size: 946, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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: 0.3s, Number of persistent set computation: 380, Number of trivial persistent sets: 152, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1429, independent: 1409, independent conditional: 0, independent unconditional: 1409, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1429, independent: 1409, independent conditional: 0, independent unconditional: 1409, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 966, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 966, independent: 936, independent conditional: 0, independent unconditional: 936, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 265, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1429, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 966, unknown conditional: 0, unknown unconditional: 966] , Statistics on independence cache: Total cache size (in pairs): 966, Positive cache size: 946, Positive conditional cache size: 0, Positive unconditional cache size: 946, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - PositiveResult [Line: 113]: 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 7 procedures, 63 locations, 74 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 1.3s, 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: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 790 NumberOfCodeBlocks, 724 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 868 ConstructedInterpolants, 0 QuantifiedInterpolants, 1917 SizeOfPredicates, 8 NumberOfNonLiveVariables, 529 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 66/97 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! [2025-03-20 03:33:35,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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