./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 --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 01:11:52,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-20 01:11:52,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-20 01:11:52,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-20 01:11:52,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-20 01:11:52,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-20 01:11:52,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-20 01:11:52,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-20 01:11:52,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-20 01:11:52,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-20 01:11:52,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Use SBE=true [2025-03-20 01:11:52,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-20 01:11:52,947 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-20 01:11:52,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 01:11:52,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-20 01:11:52,948 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-20 01:11:52,948 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 -> bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 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 01:11:53,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-20 01:11:53,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-20 01:11:53,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-20 01:11:53,216 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-20 01:11:53,216 INFO L274 PluginConnector]: CDTParser initialized [2025-03-20 01:11:53,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i [2025-03-20 01:11:54,490 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/92f637eae/5ed1eaeb9c49422bafe450877d388e12/FLAG14f355fe6 [2025-03-20 01:11:54,673 INFO L389 CDTParser]: Found 1 translation units. [2025-03-20 01:11:54,674 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i [2025-03-20 01:11:54,682 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/92f637eae/5ed1eaeb9c49422bafe450877d388e12/FLAG14f355fe6 [2025-03-20 01:11:55,540 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/92f637eae/5ed1eaeb9c49422bafe450877d388e12 [2025-03-20 01:11:55,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-20 01:11:55,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-20 01:11:55,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-20 01:11:55,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-20 01:11:55,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-20 01:11:55,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28597033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55, skipping insertion in model container [2025-03-20 01:11:55,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-20 01:11:55,718 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/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2025-03-20 01:11:55,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 01:11:55,856 INFO L200 MainTranslator]: Completed pre-run [2025-03-20 01:11:55,874 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/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2025-03-20 01:11:55,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 01:11:55,930 INFO L204 MainTranslator]: Completed translation [2025-03-20 01:11:55,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55 WrapperNode [2025-03-20 01:11:55,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-20 01:11:55,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-20 01:11:55,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-20 01:11:55,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-20 01:11:55,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,960 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2025-03-20 01:11:55,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-20 01:11:55,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-20 01:11:55,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-20 01:11:55,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-20 01:11:55,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,969 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-20 01:11:55,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-20 01:11:55,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-20 01:11:55,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-20 01:11:55,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (1/1) ... [2025-03-20 01:11:55,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 01:11:55,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 01:11:56,001 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 01:11:56,004 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 01:11:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-20 01:11:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-20 01:11:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-20 01:11:56,021 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-20 01:11:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-20 01:11:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-20 01:11:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-20 01:11:56,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-20 01:11:56,022 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 01:11:56,114 INFO L234 CfgBuilder]: Building ICFG [2025-03-20 01:11:56,115 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-20 01:11:56,241 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-20 01:11:56,242 INFO L283 CfgBuilder]: Performing block encoding [2025-03-20 01:11:56,326 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-20 01:11:56,326 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-20 01:11:56,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:11:56 BoogieIcfgContainer [2025-03-20 01:11:56,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-20 01:11:56,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-20 01:11:56,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-20 01:11:56,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-20 01:11:56,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:11:55" (1/3) ... [2025-03-20 01:11:56,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d10703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:11:56, skipping insertion in model container [2025-03-20 01:11:56,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:11:55" (2/3) ... [2025-03-20 01:11:56,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d10703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:11:56, skipping insertion in model container [2025-03-20 01:11:56,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:11:56" (3/3) ... [2025-03-20 01:11:56,335 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2025-03-20 01:11:56,345 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-20 01:11:56,347 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_20-publish-regression_true.i that has 2 procedures, 36 locations, 37 edges, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-20 01:11:56,347 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-20 01:11:56,383 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-20 01:11:56,420 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:11:56,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-20 01:11:56,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 01:11:56,422 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 01:11:56,424 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 01:11:56,472 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 01:11:56,478 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2025-03-20 01:11:56,487 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;@89a6dbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:11:56,487 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-20 01:11:56,663 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:11:56,667 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:11:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1455863753, now seen corresponding path program 1 times [2025-03-20 01:11:56,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:11:56,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041583467] [2025-03-20 01:11:56,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:11:56,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:11:56,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-20 01:11:56,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-20 01:11:56,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:11:56,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:11:56,906 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 01:11:56,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:11:56,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041583467] [2025-03-20 01:11:56,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041583467] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:11:56,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:11:56,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-20 01:11:56,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183807568] [2025-03-20 01:11:56,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:11:56,910 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-20 01:11:56,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:11:56,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-20 01:11:56,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-20 01:11:56,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:56,923 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:11:56,924 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 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) [2025-03-20 01:11:56,924 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:56,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:56,950 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-20 01:11:56,950 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:11:56,951 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:11:56,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2138510989, now seen corresponding path program 1 times [2025-03-20 01:11:56,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:11:56,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60742083] [2025-03-20 01:11:56,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:11:56,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:11:56,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-20 01:11:56,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-20 01:11:56,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:11:56,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:11:57,060 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 01:11:57,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:11:57,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60742083] [2025-03-20 01:11:57,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60742083] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:11:57,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:11:57,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 01:11:57,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728105313] [2025-03-20 01:11:57,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:11:57,063 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 01:11:57,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:11:57,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 01:11:57,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 01:11:57,064 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,064 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:11:57,064 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:11:57,064 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,064 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,390 INFO L791 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-20 01:11:57,390 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-20 01:11:57,397 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-20 01:11:57,398 INFO L320 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE (1/2) [2025-03-20 01:11:57,400 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:11:57,402 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 01:11:57,402 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-20 01:11:57,403 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;@89a6dbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:11:57,403 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-20 01:11:57,404 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 01:11:57,405 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:11:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash 244929, now seen corresponding path program 1 times [2025-03-20 01:11:57,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:11:57,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344860625] [2025-03-20 01:11:57,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:11:57,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:11:57,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-20 01:11:57,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-20 01:11:57,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:11:57,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:11:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:11:57,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:11:57,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344860625] [2025-03-20 01:11:57,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344860625] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:11:57,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:11:57,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-20 01:11:57,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089565687] [2025-03-20 01:11:57,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:11:57,449 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-20 01:11:57,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:11:57,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-20 01:11:57,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-20 01:11:57,450 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,450 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:11:57,450 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 01:11:57,450 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,486 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-20 01:11:57,486 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 01:11:57,487 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:11:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash 48720262, now seen corresponding path program 1 times [2025-03-20 01:11:57,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:11:57,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096316401] [2025-03-20 01:11:57,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:11:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:11:57,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-20 01:11:57,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-20 01:11:57,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:11:57,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:11:57,561 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 01:11:57,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:11:57,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096316401] [2025-03-20 01:11:57,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096316401] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:11:57,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:11:57,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 01:11:57,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931005597] [2025-03-20 01:11:57,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:11:57,562 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 01:11:57,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:11:57,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 01:11:57,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-20 01:11:57,563 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,563 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:11:57,563 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:11:57,563 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,563 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,657 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,658 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-20 01:11:57,658 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 01:11:57,658 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:11:57,658 INFO L85 PathProgramCache]: Analyzing trace with hash -870312331, now seen corresponding path program 1 times [2025-03-20 01:11:57,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:11:57,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842280238] [2025-03-20 01:11:57,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:11:57,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:11:57,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-20 01:11:57,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-20 01:11:57,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:11:57,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:11:57,723 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 01:11:57,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:11:57,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842280238] [2025-03-20 01:11:57,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842280238] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:11:57,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:11:57,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 01:11:57,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065057087] [2025-03-20 01:11:57,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:11:57,724 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 01:11:57,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:11:57,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 01:11:57,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 01:11:57,725 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,725 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:11:57,725 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:11:57,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,793 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,794 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,794 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,794 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-20 01:11:57,794 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 01:11:57,794 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:11:57,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1941624435, now seen corresponding path program 1 times [2025-03-20 01:11:57,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:11:57,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386744581] [2025-03-20 01:11:57,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:11:57,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:11:57,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-20 01:11:57,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-20 01:11:57,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:11:57,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:11:57,914 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 01:11:57,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:11:57,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386744581] [2025-03-20 01:11:57,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386744581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:11:57,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:11:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 01:11:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663745201] [2025-03-20 01:11:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:11:57,915 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-20 01:11:57,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:11:57,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-20 01:11:57,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-20 01:11:57,915 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,916 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:11:57,916 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 01:11:57,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:11:57,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 01:11:57,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 01:11:57,952 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-03-20 01:11:57,952 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-03-20 01:11:57,952 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-03-20 01:11:57,952 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-20 01:11:57,952 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-20 01:11:57,953 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE (2/2) [2025-03-20 01:11:57,953 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-20 01:11:57,953 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-20 01:11:57,962 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 01:11:57,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 01:11:57 BasicIcfg [2025-03-20 01:11:57,963 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-20 01:11:57,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-20 01:11:57,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-20 01:11:57,964 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-20 01:11:57,964 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:11:56" (3/4) ... [2025-03-20 01:11:57,966 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-20 01:11:57,968 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-20 01:11:57,970 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2025-03-20 01:11:57,970 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-20 01:11:57,970 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-20 01:11:57,971 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-20 01:11:58,020 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-20 01:11:58,020 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-20 01:11:58,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-20 01:11:58,022 INFO L158 Benchmark]: Toolchain (without parser) took 2478.50ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 78.9MB in the end (delta: 12.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2025-03-20 01:11:58,022 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 01:11:58,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.11ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 68.5MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-20 01:11:58,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.69ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 67.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 01:11:58,023 INFO L158 Benchmark]: Boogie Preprocessor took 16.81ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 65.8MB in the end (delta: 975.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 01:11:58,023 INFO L158 Benchmark]: RCFGBuilder took 348.24ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 42.5MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-20 01:11:58,023 INFO L158 Benchmark]: TraceAbstraction took 1635.46ms. Allocated memory is still 117.4MB. Free memory was 42.1MB in the beginning and 85.0MB in the end (delta: -42.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2025-03-20 01:11:58,023 INFO L158 Benchmark]: Witness Printer took 56.83ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 78.9MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-20 01:11:58,025 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.11ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 68.5MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.69ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 67.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.81ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 65.8MB in the end (delta: 975.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.24ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 42.5MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1635.46ms. Allocated memory is still 117.4MB. Free memory was 42.1MB in the beginning and 85.0MB in the end (delta: -42.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 56.83ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 78.9MB in the end (delta: 6.1MB). 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: 311, independent: 299, independent conditional: 0, independent unconditional: 299, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 311, independent: 299, independent conditional: 0, independent unconditional: 299, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 311, independent: 299, independent conditional: 0, independent unconditional: 299, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 311, independent: 289, independent conditional: 0, independent unconditional: 289, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 22, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 325, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 311, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 311, unknown conditional: 0, unknown unconditional: 311] , Statistics on independence cache: Total cache size (in pairs): 311, Positive cache size: 299, Positive conditional cache size: 0, Positive unconditional cache size: 299, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: 0.4s, Number of persistent set computation: 88, Number of trivial persistent sets: 40, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 311, independent: 299, independent conditional: 0, independent unconditional: 299, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 311, independent: 299, independent conditional: 0, independent unconditional: 299, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 311, independent: 299, independent conditional: 0, independent unconditional: 299, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 311, independent: 289, independent conditional: 0, independent unconditional: 289, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 22, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 325, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 311, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 311, unknown conditional: 0, unknown unconditional: 311] , Statistics on independence cache: Total cache size (in pairs): 311, Positive cache size: 299, Positive conditional cache size: 0, Positive unconditional cache size: 299, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 251, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 65, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 65, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 251, independent: 177, independent conditional: 0, independent unconditional: 177, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 65, unknown conditional: 0, unknown unconditional: 65] , Statistics on independence cache: Total cache size (in pairs): 376, Positive cache size: 360, Positive conditional cache size: 0, Positive unconditional cache size: 360, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, 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: 0.1s, Number of persistent set computation: 42, Number of trivial persistent sets: 27, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 251, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 65, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 65, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 251, independent: 177, independent conditional: 0, independent unconditional: 177, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 65, unknown conditional: 0, unknown unconditional: 65] , Statistics on independence cache: Total cache size (in pairs): 376, Positive cache size: 360, Positive conditional cache size: 0, Positive unconditional cache size: 360, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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: t_funThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 55 locations, 58 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, 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: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 55 locations, 58 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, 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: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-20 01:11:58,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE