./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi000_tso.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/pthread-wmm/rfi000_tso.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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --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 00:37:18,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-20 00:37:18,758 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-20 00:37:18,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-20 00:37:18,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-20 00:37:18,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-20 00:37:18,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-20 00:37:18,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-20 00:37:18,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-20 00:37:18,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-20 00:37:18,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * Use SBE=true [2025-03-20 00:37:18,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-20 00:37:18,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-20 00:37:18,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-20 00:37:18,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-20 00:37:18,779 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-20 00:37:18,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-20 00:37:18,779 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-20 00:37:18,779 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-20 00:37:18,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 00:37:18,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-20 00:37:18,780 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-20 00:37:18,780 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 -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd 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 00:37:19,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-20 00:37:19,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-20 00:37:19,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-20 00:37:19,034 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-20 00:37:19,035 INFO L274 PluginConnector]: CDTParser initialized [2025-03-20 00:37:19,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2025-03-20 00:37:20,286 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/68a827693/6d4625e39c5e48f2be55b96858e194ae/FLAG0972fc802 [2025-03-20 00:37:20,502 INFO L389 CDTParser]: Found 1 translation units. [2025-03-20 00:37:20,504 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2025-03-20 00:37:20,519 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/68a827693/6d4625e39c5e48f2be55b96858e194ae/FLAG0972fc802 [2025-03-20 00:37:21,287 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/68a827693/6d4625e39c5e48f2be55b96858e194ae [2025-03-20 00:37:21,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-20 00:37:21,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-20 00:37:21,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-20 00:37:21,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-20 00:37:21,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-20 00:37:21,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132f6b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21, skipping insertion in model container [2025-03-20 00:37:21,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-20 00:37:21,455 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2025-03-20 00:37:21,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 00:37:21,590 INFO L200 MainTranslator]: Completed pre-run [2025-03-20 00:37:21,611 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2025-03-20 00:37:21,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 00:37:21,681 INFO L204 MainTranslator]: Completed translation [2025-03-20 00:37:21,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21 WrapperNode [2025-03-20 00:37:21,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-20 00:37:21,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-20 00:37:21,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-20 00:37:21,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-20 00:37:21,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,733 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2025-03-20 00:37:21,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-20 00:37:21,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-20 00:37:21,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-20 00:37:21,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-20 00:37:21,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,758 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-20 00:37:21,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-20 00:37:21,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-20 00:37:21,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-20 00:37:21,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (1/1) ... [2025-03-20 00:37:21,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 00:37:21,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 00:37:21,802 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 00:37:21,807 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 00:37:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-20 00:37:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-20 00:37:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-20 00:37:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-20 00:37:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-20 00:37:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-20 00:37:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-20 00:37:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-20 00:37:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-20 00:37:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-20 00:37:21,824 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 00:37:21,926 INFO L234 CfgBuilder]: Building ICFG [2025-03-20 00:37:21,927 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-20 00:37:22,165 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-20 00:37:22,165 INFO L283 CfgBuilder]: Performing block encoding [2025-03-20 00:37:22,350 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-20 00:37:22,351 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-20 00:37:22,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:37:22 BoogieIcfgContainer [2025-03-20 00:37:22,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-20 00:37:22,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-20 00:37:22,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-20 00:37:22,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-20 00:37:22,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:37:21" (1/3) ... [2025-03-20 00:37:22,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a0a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:37:22, skipping insertion in model container [2025-03-20 00:37:22,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:37:21" (2/3) ... [2025-03-20 00:37:22,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a0a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:37:22, skipping insertion in model container [2025-03-20 00:37:22,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:37:22" (3/3) ... [2025-03-20 00:37:22,358 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2025-03-20 00:37:22,367 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-20 00:37:22,368 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi000_tso.i that has 3 procedures, 32 locations, 30 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-20 00:37:22,368 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-20 00:37:22,409 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-20 00:37:22,437 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 00:37:22,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-20 00:37:22,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 00:37:22,439 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 00:37:22,441 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 00:37:22,490 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 00:37:22,498 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork0 ======== [2025-03-20 00:37:22,506 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;@19e7bb8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 00:37:22,506 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-20 00:37:24,538 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 00:37:24,541 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 00:37:24,542 INFO L85 PathProgramCache]: Analyzing trace with hash -710585529, now seen corresponding path program 1 times [2025-03-20 00:37:24,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 00:37:24,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755831712] [2025-03-20 00:37:24,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 00:37:24,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 00:37:24,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-20 00:37:24,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-20 00:37:24,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 00:37:24,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 00:37:24,904 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 00:37:24,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 00:37:24,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755831712] [2025-03-20 00:37:24,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755831712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 00:37:24,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 00:37:24,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-20 00:37:24,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774143037] [2025-03-20 00:37:24,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 00:37:24,909 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-20 00:37:24,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 00:37:24,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-20 00:37:24,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-20 00:37:24,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:37:24,927 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 00:37:24,928 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 00:37:24,928 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:37:41,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:37:41,143 INFO L791 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-20 00:37:41,143 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-20 00:37:41,150 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-20 00:37:41,151 INFO L320 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork0 was SAFE (1/2) [2025-03-20 00:37:41,154 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 00:37:41,154 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 00:37:41,154 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-20 00:37:41,155 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;@19e7bb8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 00:37:41,155 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-20 00:37:41,159 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 00:37:41,159 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 00:37:41,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1478599745, now seen corresponding path program 1 times [2025-03-20 00:37:41,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 00:37:41,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785441761] [2025-03-20 00:37:41,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 00:37:41,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 00:37:41,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-20 00:37:41,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-20 00:37:41,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 00:37:41,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 00:37:41,465 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 00:37:41,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 00:37:41,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785441761] [2025-03-20 00:37:41,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785441761] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 00:37:41,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 00:37:41,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-20 00:37:41,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422873199] [2025-03-20 00:37:41,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 00:37:41,466 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-20 00:37:41,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 00:37:41,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-20 00:37:41,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-20 00:37:41,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:37:41,467 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 00:37:41,467 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 00:37:41,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:37:49,532 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:37:49,532 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-20 00:37:49,532 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 00:37:49,532 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 00:37:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash 246565084, now seen corresponding path program 1 times [2025-03-20 00:37:49,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 00:37:49,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654198986] [2025-03-20 00:37:49,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 00:37:49,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 00:37:49,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-20 00:37:49,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-20 00:37:49,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 00:37:49,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 00:37:49,879 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 00:37:49,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 00:37:49,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654198986] [2025-03-20 00:37:49,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654198986] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 00:37:49,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 00:37:49,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 00:37:49,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156950223] [2025-03-20 00:37:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 00:37:49,880 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-20 00:37:49,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 00:37:49,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-20 00:37:49,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-20 00:37:49,881 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:37:49,883 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 00:37:49,883 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 00:37:49,883 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:37:49,883 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:37:49,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:37:49,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 00:37:49,942 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-20 00:37:49,942 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 00:37:49,943 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 00:37:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1697448914, now seen corresponding path program 1 times [2025-03-20 00:37:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 00:37:49,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256657997] [2025-03-20 00:37:49,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 00:37:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 00:37:49,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-20 00:37:50,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-20 00:37:50,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 00:37:50,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 00:37:50,480 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 00:37:50,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 00:37:50,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256657997] [2025-03-20 00:37:50,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256657997] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 00:37:50,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 00:37:50,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-20 00:37:50,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47941247] [2025-03-20 00:37:50,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 00:37:50,480 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-20 00:37:50,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 00:37:50,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-20 00:37:50,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-20 00:37:50,481 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:37:50,481 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 00:37:50,481 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 00:37:50,481 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:37:50,481 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 00:37:50,481 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:38:03,576 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:38:03,577 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 00:38:03,577 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 00:38:03,577 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-20 00:38:03,577 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-20 00:38:03,577 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 00:38:03,577 INFO L85 PathProgramCache]: Analyzing trace with hash -731938230, now seen corresponding path program 2 times [2025-03-20 00:38:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 00:38:03,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995849666] [2025-03-20 00:38:03,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 00:38:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 00:38:03,584 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-20 00:38:03,664 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-20 00:38:03,664 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-20 00:38:03,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 00:38:06,199 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 00:38:06,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 00:38:06,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995849666] [2025-03-20 00:38:06,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995849666] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 00:38:06,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 00:38:06,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-20 00:38:06,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321749324] [2025-03-20 00:38:06,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 00:38:06,200 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-20 00:38:06,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 00:38:06,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-20 00:38:06,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-20 00:38:06,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:38:06,201 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 00:38:06,201 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 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 00:38:06,201 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:38:06,201 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 00:38:06,201 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 00:38:06,201 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 00:38:06,623 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 00:38:06,623 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 00:38:06,624 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 00:38:06,624 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-20 00:38:06,624 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-03-20 00:38:06,625 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-03-20 00:38:06,625 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-03-20 00:38:06,625 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-20 00:38:06,625 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-03-20 00:38:06,625 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE (2/2) [2025-03-20 00:38:06,626 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-20 00:38:06,626 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-20 00:38:06,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-03-20 00:38:06,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:38:06 BasicIcfg [2025-03-20 00:38:06,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-20 00:38:06,643 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-20 00:38:06,643 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-20 00:38:06,643 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-20 00:38:06,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:37:22" (3/4) ... [2025-03-20 00:38:06,645 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-20 00:38:06,647 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-20 00:38:06,647 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-20 00:38:06,650 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2025-03-20 00:38:06,651 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-03-20 00:38:06,651 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-20 00:38:06,652 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-20 00:38:06,707 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-20 00:38:06,707 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-20 00:38:06,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-20 00:38:06,709 INFO L158 Benchmark]: Toolchain (without parser) took 45417.80ms. Allocated memory was 83.9MB in the beginning and 872.4MB in the end (delta: 788.5MB). Free memory was 57.3MB in the beginning and 447.7MB in the end (delta: -390.4MB). Peak memory consumption was 397.9MB. Max. memory is 16.1GB. [2025-03-20 00:38:06,709 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 00:38:06,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.56ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 29.4MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-20 00:38:06,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.75ms. Allocated memory is still 83.9MB. Free memory was 29.4MB in the beginning and 26.0MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-20 00:38:06,710 INFO L158 Benchmark]: Boogie Preprocessor took 39.17ms. Allocated memory is still 83.9MB. Free memory was 26.0MB in the beginning and 24.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 00:38:06,711 INFO L158 Benchmark]: RCFGBuilder took 578.48ms. Allocated memory is still 83.9MB. Free memory was 24.5MB in the beginning and 53.5MB in the end (delta: -29.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2025-03-20 00:38:06,711 INFO L158 Benchmark]: TraceAbstraction took 44286.86ms. Allocated memory was 83.9MB in the beginning and 872.4MB in the end (delta: 788.5MB). Free memory was 53.0MB in the beginning and 452.0MB in the end (delta: -398.9MB). Peak memory consumption was 390.3MB. Max. memory is 16.1GB. [2025-03-20 00:38:06,712 INFO L158 Benchmark]: Witness Printer took 65.04ms. Allocated memory is still 872.4MB. Free memory was 452.0MB in the beginning and 447.7MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 00:38:06,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.56ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 29.4MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.75ms. Allocated memory is still 83.9MB. Free memory was 29.4MB in the beginning and 26.0MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.17ms. Allocated memory is still 83.9MB. Free memory was 26.0MB in the beginning and 24.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 578.48ms. Allocated memory is still 83.9MB. Free memory was 24.5MB in the beginning and 53.5MB in the end (delta: -29.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 44286.86ms. Allocated memory was 83.9MB in the beginning and 872.4MB in the end (delta: 788.5MB). Free memory was 53.0MB in the beginning and 452.0MB in the end (delta: -398.9MB). Peak memory consumption was 390.3MB. Max. memory is 16.1GB. * Witness Printer took 65.04ms. Allocated memory is still 872.4MB. Free memory was 452.0MB in the beginning and 447.7MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 285, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 285, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 285, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 285, independent: 258, independent conditional: 0, independent unconditional: 258, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 27, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18133, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 18100, dependent conditional: 0, dependent unconditional: 18100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 285, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 285, unknown conditional: 0, unknown unconditional: 285] , Statistics on independence cache: Total cache size (in pairs): 285, Positive cache size: 260, Positive conditional cache size: 0, Positive unconditional cache size: 260, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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: 18.2s, Number of persistent set computation: 74, Number of trivial persistent sets: 42, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 285, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 285, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 285, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 285, independent: 258, independent conditional: 0, independent unconditional: 258, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 27, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18133, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 18100, dependent conditional: 0, dependent unconditional: 18100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 285, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 285, unknown conditional: 0, unknown unconditional: 285] , Statistics on independence cache: Total cache size (in pairs): 285, Positive cache size: 260, Positive conditional cache size: 0, Positive unconditional cache size: 260, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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: 328, independent: 297, independent conditional: 0, independent unconditional: 297, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, independent: 297, independent conditional: 0, independent unconditional: 297, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 106, independent: 91, independent conditional: 0, independent unconditional: 91, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 106, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20926, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20924, dependent conditional: 0, dependent unconditional: 20924, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 328, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 106, unknown conditional: 0, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 391, Positive cache size: 351, Positive conditional cache size: 0, Positive unconditional cache size: 351, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, 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: 21.0s, Number of persistent set computation: 118, Number of trivial persistent sets: 40, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 328, independent: 297, independent conditional: 0, independent unconditional: 297, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, independent: 297, independent conditional: 0, independent unconditional: 297, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 106, independent: 91, independent conditional: 0, independent unconditional: 91, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 106, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20926, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20924, dependent conditional: 0, dependent unconditional: 20924, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 328, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 106, unknown conditional: 0, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 391, Positive cache size: 351, Positive conditional cache size: 0, Positive unconditional cache size: 351, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - PositiveResult [Line: 18]: 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: 18]: 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: P1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 51 locations, 49 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 18.2s, 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: 3, 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, 0.3s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 51 locations, 49 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 21.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-20 00:38:06,729 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