./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe010_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 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/safe010_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 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 19:01:06,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 19:01:06,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 19:01:06,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 19:01:06,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 19:01:06,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 19:01:06,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 19:01:06,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 19:01:06,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 19:01:06,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 19:01:06,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 19:01:06,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 19:01:06,996 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:01:06,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:01:06,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:01:06,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 19:01:06,998 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 19:01:06,998 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 -> 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 [2025-04-24 19:01:07,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 19:01:07,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 19:01:07,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 19:01:07,241 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 19:01:07,241 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 19:01:07,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-wmm/safe010_tso.i [2025-04-24 19:01:08,594 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/48cc7613e/4040b44a7f4f480c9f94293c21b0c6c0/FLAGdbc79ee4b [2025-04-24 19:01:08,824 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 19:01:08,825 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe010_tso.i [2025-04-24 19:01:08,834 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/48cc7613e/4040b44a7f4f480c9f94293c21b0c6c0/FLAGdbc79ee4b [2025-04-24 19:01:09,644 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/48cc7613e/4040b44a7f4f480c9f94293c21b0c6c0 [2025-04-24 19:01:09,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 19:01:09,647 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 19:01:09,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 19:01:09,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 19:01:09,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 19:01:09,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:01:09" (1/1) ... [2025-04-24 19:01:09,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2723664c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:09, skipping insertion in model container [2025-04-24 19:01:09,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:01:09" (1/1) ... [2025-04-24 19:01:09,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 19:01:09,822 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2025-04-24 19:01:09,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:01:09,930 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 19:01:09,946 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2025-04-24 19:01:09,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:01:10,013 INFO L204 MainTranslator]: Completed translation [2025-04-24 19:01:10,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10 WrapperNode [2025-04-24 19:01:10,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 19:01:10,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 19:01:10,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 19:01:10,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 19:01:10,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,042 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2025-04-24 19:01:10,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 19:01:10,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 19:01:10,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 19:01:10,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 19:01:10,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,052 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 19:01:10,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 19:01:10,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 19:01:10,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 19:01:10,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (1/1) ... [2025-04-24 19:01:10,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:01:10,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:01:10,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 19:01:10,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 19:01:10,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 19:01:10,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 19:01:10,110 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-24 19:01:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-24 19:01:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-24 19:01:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-24 19:01:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 19:01:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 19:01:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 19:01:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 19:01:10,112 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 19:01:10,187 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 19:01:10,188 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 19:01:10,266 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 19:01:10,266 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 19:01:10,318 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 19:01:10,318 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 19:01:10,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:01:10 BoogieIcfgContainer [2025-04-24 19:01:10,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 19:01:10,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 19:01:10,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 19:01:10,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 19:01:10,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 07:01:09" (1/3) ... [2025-04-24 19:01:10,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7782be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:01:10, skipping insertion in model container [2025-04-24 19:01:10,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:01:10" (2/3) ... [2025-04-24 19:01:10,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7782be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:01:10, skipping insertion in model container [2025-04-24 19:01:10,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:01:10" (3/3) ... [2025-04-24 19:01:10,327 INFO L128 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2025-04-24 19:01:10,336 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 19:01:10,337 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe010_tso.i that has 3 procedures, 29 locations, 27 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-24 19:01:10,338 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 19:01:10,374 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 19:01:10,414 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:01:10,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 19:01:10,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:01:10,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 19:01:10,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 19:01:10,476 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 19:01:10,487 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 19:01:10,491 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;@641151de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:01:10,492 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 19:01:10,725 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:01:10,725 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:01:10,726 INFO L139 ounterexampleChecker]: Examining path program with hash 962420310, occurence #1 [2025-04-24 19:01:10,726 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:01:10,726 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:01:10,728 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:01:10,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1488505643, now seen corresponding path program 1 times [2025-04-24 19:01:10,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:01:10,734 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441488182] [2025-04-24 19:01:10,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:01:10,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:01:10,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-24 19:01:10,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-24 19:01:10,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:01:10,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:01:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:01:11,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:01:11,103 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441488182] [2025-04-24 19:01:11,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441488182] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:01:11,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:01:11,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-24 19:01:11,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333623531] [2025-04-24 19:01:11,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:01:11,109 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 19:01:11,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:01:11,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 19:01:11,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-24 19:01:11,124 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:01:11,125 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:01:11,126 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:01:11,127 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:01:11,249 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 19:01:11,250 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 19:01:11,251 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:01:11,252 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:01:11,252 INFO L139 ounterexampleChecker]: Examining path program with hash 1930832500, occurence #1 [2025-04-24 19:01:11,252 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:01:11,252 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:01:11,252 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:01:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash 439331478, now seen corresponding path program 1 times [2025-04-24 19:01:11,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:01:11,253 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752915764] [2025-04-24 19:01:11,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:01:11,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:01:11,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-24 19:01:11,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-24 19:01:11,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:01:11,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:01:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:01:11,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:01:11,422 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752915764] [2025-04-24 19:01:11,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752915764] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:01:11,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:01:11,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-24 19:01:11,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913504550] [2025-04-24 19:01:11,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:01:11,423 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 19:01:11,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:01:11,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 19:01:11,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-04-24 19:01:11,423 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:01:11,423 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:01:11,424 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 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) [2025-04-24 19:01:11,424 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 19:01:11,424 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:01:11,851 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:01:11,851 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 19:01:11,852 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 19:01:11,852 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:01:11,852 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:01:11,852 INFO L139 ounterexampleChecker]: Examining path program with hash -2133493500, occurence #1 [2025-04-24 19:01:11,852 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:01:11,852 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:01:11,853 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:01:11,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1586766360, now seen corresponding path program 1 times [2025-04-24 19:01:11,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:01:11,853 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896964259] [2025-04-24 19:01:11,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:01:11,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:01:11,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-24 19:01:11,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-24 19:01:11,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:01:11,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:01:11,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:01:11,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:01:11,953 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896964259] [2025-04-24 19:01:11,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896964259] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:01:11,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:01:11,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:01:11,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962243091] [2025-04-24 19:01:11,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:01:11,953 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 19:01:11,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:01:11,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 19:01:11,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 19:01:11,954 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:01:11,954 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:01:11,954 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:01:11,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:01:11,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 19:01:11,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:01:12,054 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:01:12,055 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 19:01:12,055 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:01:12,057 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-24 19:01:12,057 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-24 19:01:12,057 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-24 19:01:12,057 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 19:01:12,064 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-24 19:01:12,066 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 19:01:12,066 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 19:01:12,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-24 19:01:12,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 07:01:12 BasicIcfg [2025-04-24 19:01:12,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 19:01:12,075 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 19:01:12,076 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 19:01:12,076 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 19:01:12,076 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:01:10" (3/4) ... [2025-04-24 19:01:12,078 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-24 19:01:12,079 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-04-24 19:01:12,079 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-04-24 19:01:12,082 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-04-24 19:01:12,082 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-04-24 19:01:12,082 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-24 19:01:12,082 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-24 19:01:12,136 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 19:01:12,137 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 19:01:12,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 19:01:12,137 INFO L158 Benchmark]: Toolchain (without parser) took 2490.76ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 111.3MB in the beginning and 365.5MB in the end (delta: -254.2MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2025-04-24 19:01:12,137 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:01:12,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.71ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 89.3MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-24 19:01:12,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.05ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 87.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:01:12,138 INFO L158 Benchmark]: Boogie Preprocessor took 18.41ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 86.3MB in the end (delta: 988.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:01:12,139 INFO L158 Benchmark]: RCFGBuilder took 256.41ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 69.6MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 19:01:12,139 INFO L158 Benchmark]: TraceAbstraction took 1755.03ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 68.6MB in the beginning and 371.0MB in the end (delta: -302.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:01:12,139 INFO L158 Benchmark]: Witness Printer took 61.14ms. Allocated memory is still 427.8MB. Free memory was 371.0MB in the beginning and 365.5MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:01:12,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.71ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 89.3MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.05ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 87.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.41ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 86.3MB in the end (delta: 988.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 256.41ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 69.6MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1755.03ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 68.6MB in the beginning and 371.0MB in the end (delta: -302.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.14ms. Allocated memory is still 427.8MB. Free memory was 371.0MB in the beginning and 365.5MB in the end (delta: 5.5MB). 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: 1284, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 53, dependent conditional: 38, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1284, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 53, dependent conditional: 38, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1284, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 53, dependent conditional: 38, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1370, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 139, dependent conditional: 124, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1370, independent: 1231, independent conditional: 23, independent unconditional: 1208, dependent: 139, dependent conditional: 14, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1370, independent: 1231, independent conditional: 23, independent unconditional: 1208, dependent: 139, dependent conditional: 14, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 351, independent: 330, independent conditional: 8, independent unconditional: 322, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 351, independent: 319, independent conditional: 0, independent unconditional: 319, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 32, independent: 11, independent conditional: 8, independent unconditional: 3, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 11, independent conditional: 8, independent unconditional: 3, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 430, independent: 137, independent conditional: 96, independent unconditional: 41, dependent: 293, dependent conditional: 58, dependent unconditional: 234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1370, independent: 901, independent conditional: 15, independent unconditional: 886, dependent: 118, dependent conditional: 8, dependent unconditional: 110, unknown: 351, unknown conditional: 14, unknown unconditional: 337] , Statistics on independence cache: Total cache size (in pairs): 351, Positive cache size: 330, Positive conditional cache size: 8, Positive unconditional cache size: 322, Negative cache size: 21, Negative conditional cache size: 6, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 996, Maximal queried relation: 3, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 192, Number of trivial persistent sets: 73, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 337, independent: 322, independent conditional: 0, independent unconditional: 322, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1284, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 53, dependent conditional: 38, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1284, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 53, dependent conditional: 38, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1284, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 53, dependent conditional: 38, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1370, independent: 1231, independent conditional: 909, independent unconditional: 322, dependent: 139, dependent conditional: 124, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1370, independent: 1231, independent conditional: 23, independent unconditional: 1208, dependent: 139, dependent conditional: 14, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1370, independent: 1231, independent conditional: 23, independent unconditional: 1208, dependent: 139, dependent conditional: 14, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 351, independent: 330, independent conditional: 8, independent unconditional: 322, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 351, independent: 319, independent conditional: 0, independent unconditional: 319, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 32, independent: 11, independent conditional: 8, independent unconditional: 3, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 11, independent conditional: 8, independent unconditional: 3, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 430, independent: 137, independent conditional: 96, independent unconditional: 41, dependent: 293, dependent conditional: 58, dependent unconditional: 234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1370, independent: 901, independent conditional: 15, independent unconditional: 886, dependent: 118, dependent conditional: 8, dependent unconditional: 110, unknown: 351, unknown conditional: 14, unknown unconditional: 337] , Statistics on independence cache: Total cache size (in pairs): 351, Positive cache size: 330, Positive conditional cache size: 8, Positive unconditional cache size: 322, Negative cache size: 21, Negative conditional cache size: 6, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 996, Maximal queried relation: 3, 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 45 locations, 43 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.9s, 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: 24, 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, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 205 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-24 19:01:12,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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