./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fbcb9f20 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.2.3-?-fbcb9f2-m [2023-11-24 03:17:34,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 03:17:34,716 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-24 03:17:34,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 03:17:34,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 03:17:34,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 03:17:34,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 03:17:34,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 03:17:34,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 03:17:34,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 03:17:34,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 03:17:34,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 03:17:34,765 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 03:17:34,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 03:17:34,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 03:17:34,767 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 03:17:34,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 03:17:34,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 03:17:34,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 03:17:34,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 03:17:34,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 03:17:34,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 03:17:34,769 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 03:17:34,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 03:17:34,769 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 03:17:34,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 03:17:34,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 03:17:34,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 03:17:34,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 03:17:34,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 03:17:34,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 03:17:34,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 03:17:34,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 03:17:34,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 03:17:34,773 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 03:17:34,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 03:17:34,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 03:17:34,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 03:17:34,773 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 03:17:34,774 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 03:17:34,774 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 03:17:34,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2023-11-24 03:17:35,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 03:17:35,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 03:17:35,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 03:17:35,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 03:17:35,081 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 03:17:35,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-24 03:17:36,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 03:17:36,609 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 03:17:36,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-24 03:17:36,639 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/45ba1e23a/73e4c08c2a05400491495e52d44b8308/FLAG2fffb4b98 [2023-11-24 03:17:36,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/45ba1e23a/73e4c08c2a05400491495e52d44b8308 [2023-11-24 03:17:36,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 03:17:36,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 03:17:36,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 03:17:36,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 03:17:36,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 03:17:36,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:17:36" (1/1) ... [2023-11-24 03:17:36,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1648823e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:36, skipping insertion in model container [2023-11-24 03:17:36,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:17:36" (1/1) ... [2023-11-24 03:17:36,743 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 03:17:36,904 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-24 03:17:37,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 03:17:37,121 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 03:17:37,135 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-24 03:17:37,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 03:17:37,214 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 03:17:37,215 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 03:17:37,222 INFO L206 MainTranslator]: Completed translation [2023-11-24 03:17:37,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37 WrapperNode [2023-11-24 03:17:37,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 03:17:37,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 03:17:37,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 03:17:37,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 03:17:37,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,264 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2023-11-24 03:17:37,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 03:17:37,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 03:17:37,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 03:17:37,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 03:17:37,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 03:17:37,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 03:17:37,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 03:17:37,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 03:17:37,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (1/1) ... [2023-11-24 03:17:37,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 03:17:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 03:17:37,326 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) [2023-11-24 03:17:37,328 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 [2023-11-24 03:17:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 03:17:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 03:17:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 03:17:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 03:17:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 03:17:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-24 03:17:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-24 03:17:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-24 03:17:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-24 03:17:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-24 03:17:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-24 03:17:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-24 03:17:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-24 03:17:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 03:17:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 03:17:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 03:17:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 03:17:37,369 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 03:17:37,507 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 03:17:37,519 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 03:17:37,737 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 03:17:37,836 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 03:17:37,836 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 03:17:37,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:17:37 BoogieIcfgContainer [2023-11-24 03:17:37,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 03:17:37,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 03:17:37,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 03:17:37,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 03:17:37,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 03:17:36" (1/3) ... [2023-11-24 03:17:37,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6ea8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:17:37, skipping insertion in model container [2023-11-24 03:17:37,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:17:37" (2/3) ... [2023-11-24 03:17:37,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6ea8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:17:37, skipping insertion in model container [2023-11-24 03:17:37,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:17:37" (3/3) ... [2023-11-24 03:17:37,845 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-24 03:17:37,854 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 03:17:37,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 03:17:37,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 03:17:37,864 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 03:17:37,922 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 03:17:37,961 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 03:17:37,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 03:17:37,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 03:17:37,964 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) [2023-11-24 03:17:37,967 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 [2023-11-24 03:17:38,001 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 03:17:38,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-24 03:17:38,017 INFO L357 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, mHoare=true, 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;@191393a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 03:17:38,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 03:17:38,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-24 03:17:38,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 03:17:38,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1163478355, now seen corresponding path program 1 times [2023-11-24 03:17:38,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 03:17:38,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551581791] [2023-11-24 03:17:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 03:17:38,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 03:17:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 03:17:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 03:17:38,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 03:17:38,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551581791] [2023-11-24 03:17:38,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551581791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 03:17:38,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 03:17:38,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 03:17:38,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110422938] [2023-11-24 03:17:38,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 03:17:38,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 03:17:38,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 03:17:38,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 03:17:38,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 03:17:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:38,847 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 03:17:38,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-11-24 03:17:38,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:39,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 03:17:39,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-24 03:17:39,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 03:17:39,014 INFO L85 PathProgramCache]: Analyzing trace with hash -938146923, now seen corresponding path program 1 times [2023-11-24 03:17:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 03:17:39,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494440302] [2023-11-24 03:17:39,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 03:17:39,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 03:17:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 03:17:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 03:17:39,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 03:17:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494440302] [2023-11-24 03:17:39,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494440302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 03:17:39,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 03:17:39,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 03:17:39,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079743057] [2023-11-24 03:17:39,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 03:17:39,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 03:17:39,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 03:17:39,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 03:17:39,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-24 03:17:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:39,404 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 03:17:39,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2023-11-24 03:17:39,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:39,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:40,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:40,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:40,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 03:17:40,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-24 03:17:40,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 03:17:40,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1611399395, now seen corresponding path program 2 times [2023-11-24 03:17:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 03:17:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270527255] [2023-11-24 03:17:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 03:17:40,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 03:17:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 03:17:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 03:17:40,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 03:17:40,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270527255] [2023-11-24 03:17:40,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270527255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 03:17:40,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 03:17:40,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 03:17:40,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964534479] [2023-11-24 03:17:40,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 03:17:40,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 03:17:40,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 03:17:40,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 03:17:40,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-24 03:17:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:40,636 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 03:17:40,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2023-11-24 03:17:40,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:40,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:40,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:41,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 03:17:41,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-24 03:17:41,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 03:17:41,218 INFO L85 PathProgramCache]: Analyzing trace with hash -921475503, now seen corresponding path program 3 times [2023-11-24 03:17:41,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 03:17:41,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226588069] [2023-11-24 03:17:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 03:17:41,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 03:17:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 03:17:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 03:17:41,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 03:17:41,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226588069] [2023-11-24 03:17:41,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226588069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 03:17:41,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 03:17:41,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 03:17:41,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826980014] [2023-11-24 03:17:41,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 03:17:41,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 03:17:41,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 03:17:41,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 03:17:41,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-24 03:17:41,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:41,377 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 03:17:41,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2023-11-24 03:17:41,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:41,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:41,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:41,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:41,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 03:17:41,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-24 03:17:41,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 03:17:42,000 INFO L85 PathProgramCache]: Analyzing trace with hash -498308827, now seen corresponding path program 4 times [2023-11-24 03:17:42,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 03:17:42,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336216683] [2023-11-24 03:17:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 03:17:42,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 03:17:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 03:17:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 03:17:42,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 03:17:42,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336216683] [2023-11-24 03:17:42,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336216683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 03:17:42,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 03:17:42,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 03:17:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682764599] [2023-11-24 03:17:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 03:17:42,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 03:17:42,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 03:17:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 03:17:42,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-24 03:17:42,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:42,246 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 03:17:42,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2023-11-24 03:17:42,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:42,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:42,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:42,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:42,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 03:17:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 03:17:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 03:17:43,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-24 03:17:43,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-11-24 03:17:43,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-24 03:17:43,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-24 03:17:43,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-24 03:17:43,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 03:17:43,183 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-11-24 03:17:43,186 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 03:17:43,186 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 03:17:43,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 03:17:43 BasicIcfg [2023-11-24 03:17:43,192 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 03:17:43,192 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 03:17:43,192 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 03:17:43,193 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 03:17:43,193 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:17:37" (3/4) ... [2023-11-24 03:17:43,195 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 03:17:43,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-24 03:17:43,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-24 03:17:43,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-24 03:17:43,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-24 03:17:43,205 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2023-11-24 03:17:43,206 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-24 03:17:43,206 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 03:17:43,207 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 03:17:43,288 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-24 03:17:43,288 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2023-11-24 03:17:43,288 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 03:17:43,289 INFO L158 Benchmark]: Toolchain (without parser) took 6620.09ms. Allocated memory was 186.6MB in the beginning and 346.0MB in the end (delta: 159.4MB). Free memory was 117.6MB in the beginning and 273.1MB in the end (delta: -155.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 03:17:43,289 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 76.5MB in the beginning and 76.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 03:17:43,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.49ms. Allocated memory is still 186.6MB. Free memory was 117.4MB in the beginning and 96.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 03:17:43,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.73ms. Allocated memory is still 186.6MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 03:17:43,290 INFO L158 Benchmark]: Boogie Preprocessor took 25.48ms. Allocated memory is still 186.6MB. Free memory was 94.3MB in the beginning and 92.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 03:17:43,290 INFO L158 Benchmark]: RCFGBuilder took 545.80ms. Allocated memory is still 186.6MB. Free memory was 92.7MB in the beginning and 141.8MB in the end (delta: -49.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 03:17:43,291 INFO L158 Benchmark]: TraceAbstraction took 5352.66ms. Allocated memory was 186.6MB in the beginning and 346.0MB in the end (delta: 159.4MB). Free memory was 141.2MB in the beginning and 277.3MB in the end (delta: -136.0MB). Peak memory consumption was 185.2MB. Max. memory is 16.1GB. [2023-11-24 03:17:43,291 INFO L158 Benchmark]: Witness Printer took 96.31ms. Allocated memory is still 346.0MB. Free memory was 277.3MB in the beginning and 273.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 03:17:43,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 76.5MB in the beginning and 76.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.49ms. Allocated memory is still 186.6MB. Free memory was 117.4MB in the beginning and 96.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.73ms. Allocated memory is still 186.6MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.48ms. Allocated memory is still 186.6MB. Free memory was 94.3MB in the beginning and 92.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 545.80ms. Allocated memory is still 186.6MB. Free memory was 92.7MB in the beginning and 141.8MB in the end (delta: -49.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5352.66ms. Allocated memory was 186.6MB in the beginning and 346.0MB in the end (delta: 159.4MB). Free memory was 141.2MB in the beginning and 277.3MB in the end (delta: -136.0MB). Peak memory consumption was 185.2MB. Max. memory is 16.1GB. * Witness Printer took 96.31ms. Allocated memory is still 346.0MB. Free memory was 277.3MB in the beginning and 273.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 153938, independent: 151863, independent conditional: 150725, independent unconditional: 1138, dependent: 2075, dependent conditional: 2051, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 153938, independent: 151863, independent conditional: 150725, independent unconditional: 1138, dependent: 2075, dependent conditional: 2051, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 153938, independent: 151863, independent conditional: 150725, independent unconditional: 1138, dependent: 2075, dependent conditional: 2051, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 178015, independent: 151863, independent conditional: 5327, independent unconditional: 146536, dependent: 26152, dependent conditional: 18750, dependent unconditional: 7402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 178015, independent: 151863, independent conditional: 5327, independent unconditional: 146536, dependent: 26152, dependent conditional: 1447, dependent unconditional: 24705, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 178015, independent: 151863, independent conditional: 5327, independent unconditional: 146536, dependent: 26152, dependent conditional: 1447, dependent unconditional: 24705, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1190, independent: 1159, independent conditional: 21, independent unconditional: 1138, dependent: 31, dependent conditional: 7, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1190, independent: 1123, independent conditional: 0, independent unconditional: 1123, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 36, independent conditional: 21, independent unconditional: 15, dependent: 31, dependent conditional: 7, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 36, independent conditional: 21, independent unconditional: 15, dependent: 31, dependent conditional: 7, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 213, independent: 133, independent conditional: 59, independent unconditional: 74, dependent: 80, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 178015, independent: 150704, independent conditional: 5306, independent unconditional: 145398, dependent: 26121, dependent conditional: 1440, dependent unconditional: 24681, unknown: 1190, unknown conditional: 28, unknown unconditional: 1162] , Statistics on independence cache: Total cache size (in pairs): 1190, Positive cache size: 1159, Positive conditional cache size: 21, Positive unconditional cache size: 1138, Negative cache size: 31, Negative conditional cache size: 7, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17303, Maximal queried relation: 5, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.6s, Number of persistent set computation: 4322, Number of trivial persistent sets: 2228, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1162, independent: 1138, independent conditional: 0, independent unconditional: 1138, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 153938, independent: 151863, independent conditional: 150725, independent unconditional: 1138, dependent: 2075, dependent conditional: 2051, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 153938, independent: 151863, independent conditional: 150725, independent unconditional: 1138, dependent: 2075, dependent conditional: 2051, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 153938, independent: 151863, independent conditional: 150725, independent unconditional: 1138, dependent: 2075, dependent conditional: 2051, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 178015, independent: 151863, independent conditional: 5327, independent unconditional: 146536, dependent: 26152, dependent conditional: 18750, dependent unconditional: 7402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 178015, independent: 151863, independent conditional: 5327, independent unconditional: 146536, dependent: 26152, dependent conditional: 1447, dependent unconditional: 24705, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 178015, independent: 151863, independent conditional: 5327, independent unconditional: 146536, dependent: 26152, dependent conditional: 1447, dependent unconditional: 24705, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1190, independent: 1159, independent conditional: 21, independent unconditional: 1138, dependent: 31, dependent conditional: 7, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1190, independent: 1123, independent conditional: 0, independent unconditional: 1123, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 36, independent conditional: 21, independent unconditional: 15, dependent: 31, dependent conditional: 7, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 36, independent conditional: 21, independent unconditional: 15, dependent: 31, dependent conditional: 7, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 213, independent: 133, independent conditional: 59, independent unconditional: 74, dependent: 80, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 178015, independent: 150704, independent conditional: 5306, independent unconditional: 145398, dependent: 26121, dependent conditional: 1440, dependent unconditional: 24681, unknown: 1190, unknown conditional: 28, unknown unconditional: 1162] , Statistics on independence cache: Total cache size (in pairs): 1190, Positive cache size: 1159, Positive conditional cache size: 21, Positive unconditional cache size: 1138, Negative cache size: 31, Negative conditional cache size: 7, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17303, Maximal queried relation: 5, 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 9 procedures, 79 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 3.4s, 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: 31, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 1111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-24 03:17:43,318 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 [2023-11-24 03:17:43,521 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