./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da 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/weaver/parallel-misc-3-extended.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ac00c9540bbc99a446c9cb6c02e180c3a0ad4fef3c182d14bafdc7ea871c54c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-22 13:23:25,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-22 13:23:25,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-22 13:23:25,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-22 13:23:25,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-22 13:23:25,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-22 13:23:25,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-22 13:23:25,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-22 13:23:25,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-22 13:23:25,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-22 13:23:25,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-22 13:23:25,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-22 13:23:25,913 INFO L153 SettingsManager]: * Use SBE=true [2024-09-22 13:23:25,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-22 13:23:25,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-22 13:23:25,915 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-22 13:23:25,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-22 13:23:25,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-22 13:23:25,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-22 13:23:25,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-22 13:23:25,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-22 13:23:25,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-22 13:23:25,918 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-22 13:23:25,918 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-22 13:23:25,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-22 13:23:25,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-22 13:23:25,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-22 13:23:25,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-22 13:23:25,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-22 13:23:25,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-22 13:23:25,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 13:23:25,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-22 13:23:25,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-22 13:23:25,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-22 13:23:25,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-22 13:23:25,921 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-22 13:23:25,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-22 13:23:25,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-22 13:23:25,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-22 13:23:25,922 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-22 13:23:25,922 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-22 13:23:25,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ac00c9540bbc99a446c9cb6c02e180c3a0ad4fef3c182d14bafdc7ea871c54c [2024-09-22 13:23:26,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-22 13:23:26,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-22 13:23:26,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-22 13:23:26,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-22 13:23:26,157 INFO L274 PluginConnector]: CDTParser initialized [2024-09-22 13:23:26,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2024-09-22 13:23:27,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-22 13:23:27,494 INFO L384 CDTParser]: Found 1 translation units. [2024-09-22 13:23:27,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2024-09-22 13:23:27,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4848d9b59/09cc62d436944861b5e5bfe8b6f16d2c/FLAG5e8320286 [2024-09-22 13:23:27,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4848d9b59/09cc62d436944861b5e5bfe8b6f16d2c [2024-09-22 13:23:27,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-22 13:23:27,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-22 13:23:27,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-22 13:23:27,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-22 13:23:27,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-22 13:23:27,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46346b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27, skipping insertion in model container [2024-09-22 13:23:27,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-22 13:23:27,687 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c[2895,2908] [2024-09-22 13:23:27,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 13:23:27,695 INFO L200 MainTranslator]: Completed pre-run [2024-09-22 13:23:27,710 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c[2895,2908] [2024-09-22 13:23:27,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 13:23:27,723 INFO L204 MainTranslator]: Completed translation [2024-09-22 13:23:27,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27 WrapperNode [2024-09-22 13:23:27,723 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-22 13:23:27,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-22 13:23:27,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-22 13:23:27,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-22 13:23:27,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,746 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2024-09-22 13:23:27,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-22 13:23:27,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-22 13:23:27,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-22 13:23:27,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-22 13:23:27,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,754 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-22 13:23:27,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-22 13:23:27,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-22 13:23:27,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-22 13:23:27,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (1/1) ... [2024-09-22 13:23:27,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 13:23:27,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 13:23:27,796 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) [2024-09-22 13:23:27,799 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 [2024-09-22 13:23:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-22 13:23:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-22 13:23:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-22 13:23:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-22 13:23:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-22 13:23:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-22 13:23:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-22 13:23:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-22 13:23:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-22 13:23:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-22 13:23:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-22 13:23:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-22 13:23:27,837 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-22 13:23:27,910 INFO L242 CfgBuilder]: Building ICFG [2024-09-22 13:23:27,912 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-22 13:23:28,112 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-22 13:23:28,113 INFO L291 CfgBuilder]: Performing block encoding [2024-09-22 13:23:28,225 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-22 13:23:28,226 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-22 13:23:28,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 01:23:28 BoogieIcfgContainer [2024-09-22 13:23:28,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-22 13:23:28,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-22 13:23:28,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-22 13:23:28,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-22 13:23:28,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 01:23:27" (1/3) ... [2024-09-22 13:23:28,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e03576d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 01:23:28, skipping insertion in model container [2024-09-22 13:23:28,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 01:23:27" (2/3) ... [2024-09-22 13:23:28,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e03576d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 01:23:28, skipping insertion in model container [2024-09-22 13:23:28,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 01:23:28" (3/3) ... [2024-09-22 13:23:28,234 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2024-09-22 13:23:28,246 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-22 13:23:28,246 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-22 13:23:28,247 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-22 13:23:28,293 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-22 13:23:28,323 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 13:23:28,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-22 13:23:28,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 13:23:28,325 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) [2024-09-22 13:23:28,325 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 [2024-09-22 13:23:28,346 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-22 13:23:28,355 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-22 13:23:28,359 INFO L336 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;@7b7ee086, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 13:23:28,359 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-22 13:23:28,513 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:28,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:28,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1244836192, now seen corresponding path program 1 times [2024-09-22 13:23:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:28,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097883917] [2024-09-22 13:23:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:28,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:28,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-22 13:23:28,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:28,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097883917] [2024-09-22 13:23:28,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097883917] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 13:23:28,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 13:23:28,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-22 13:23:28,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617477281] [2024-09-22 13:23:28,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 13:23:28,873 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 13:23:28,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:28,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 13:23:28,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 13:23:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:28,891 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:28,892 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-09-22 13:23:28,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:28,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:28,973 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-22 13:23:28,974 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:28,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash -397816020, now seen corresponding path program 1 times [2024-09-22 13:23:28,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:28,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655556847] [2024-09-22 13:23:28,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-22 13:23:29,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655556847] [2024-09-22 13:23:29,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655556847] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 13:23:29,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 13:23:29,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-22 13:23:29,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408148504] [2024-09-22 13:23:29,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 13:23:29,270 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 13:23:29,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:29,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 13:23:29,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-22 13:23:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:29,273 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:29,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-09-22 13:23:29,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:29,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:29,361 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-22 13:23:29,362 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:29,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:29,362 INFO L85 PathProgramCache]: Analyzing trace with hash -713822444, now seen corresponding path program 1 times [2024-09-22 13:23:29,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:29,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783326207] [2024-09-22 13:23:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:29,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:29,675 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-22 13:23:29,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:29,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783326207] [2024-09-22 13:23:29,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783326207] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 13:23:29,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 13:23:29,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-22 13:23:29,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470110097] [2024-09-22 13:23:29,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 13:23:29,678 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 13:23:29,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:29,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 13:23:29,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-22 13:23:29,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:29,680 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:29,681 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-09-22 13:23:29,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:29,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:29,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:29,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:29,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:29,762 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-22 13:23:29,762 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:29,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash 352535316, now seen corresponding path program 1 times [2024-09-22 13:23:29,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:29,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735019382] [2024-09-22 13:23:29,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:29,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:29,998 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-09-22 13:23:29,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:29,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735019382] [2024-09-22 13:23:29,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735019382] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 13:23:29,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 13:23:29,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-22 13:23:29,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981164148] [2024-09-22 13:23:29,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 13:23:29,999 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 13:23:29,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:29,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 13:23:30,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-22 13:23:30,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:30,000 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:30,000 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-09-22 13:23:30,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:30,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,075 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-22 13:23:30,075 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:30,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:30,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1191459084, now seen corresponding path program 1 times [2024-09-22 13:23:30,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:30,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673799451] [2024-09-22 13:23:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:30,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-22 13:23:30,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:30,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673799451] [2024-09-22 13:23:30,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673799451] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 13:23:30,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941185902] [2024-09-22 13:23:30,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:30,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 13:23:30,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 13:23:30,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 13:23:30,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-22 13:23:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:30,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-22 13:23:30,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 13:23:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-22 13:23:30,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 13:23:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-22 13:23:30,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941185902] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 13:23:30,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 13:23:30,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2024-09-22 13:23:30,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904229159] [2024-09-22 13:23:30,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 13:23:30,645 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-22 13:23:30,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:30,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-22 13:23:30,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-09-22 13:23:30,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:30,646 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:30,647 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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) [2024-09-22 13:23:30,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:30,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 13:23:30,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-22 13:23:31,006 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 13:23:31,007 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:31,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash 946242704, now seen corresponding path program 2 times [2024-09-22 13:23:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:31,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380945617] [2024-09-22 13:23:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:31,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 41 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-22 13:23:31,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:31,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380945617] [2024-09-22 13:23:31,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380945617] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 13:23:31,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487927950] [2024-09-22 13:23:31,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-22 13:23:31,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 13:23:31,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 13:23:31,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 13:23:31,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-22 13:23:31,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-22 13:23:31,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 13:23:31,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-22 13:23:31,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 13:23:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-09-22 13:23:31,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-22 13:23:31,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487927950] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 13:23:31,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-22 13:23:31,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-22 13:23:31,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252020540] [2024-09-22 13:23:31,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 13:23:31,732 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 13:23:31,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:31,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 13:23:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-22 13:23:31,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:31,733 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:31,733 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-09-22 13:23:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 13:23:31,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 13:23:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:31,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-22 13:23:31,995 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 13:23:31,996 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:31,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash 896037080, now seen corresponding path program 3 times [2024-09-22 13:23:31,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:31,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481348637] [2024-09-22 13:23:31,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:31,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-22 13:23:32,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:32,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481348637] [2024-09-22 13:23:32,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481348637] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 13:23:32,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881877276] [2024-09-22 13:23:32,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-22 13:23:32,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 13:23:32,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 13:23:32,446 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 13:23:32,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-22 13:23:32,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-22 13:23:32,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 13:23:32,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-22 13:23:32,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 13:23:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-09-22 13:23:32,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-22 13:23:32,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881877276] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 13:23:32,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-22 13:23:32,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-22 13:23:32,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134963129] [2024-09-22 13:23:32,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 13:23:32,533 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 13:23:32,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:32,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 13:23:32,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-22 13:23:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:32,534 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:32,534 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-09-22 13:23:32,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:32,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 13:23:32,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 13:23:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:32,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-22 13:23:32,805 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 13:23:32,805 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-22 13:23:32,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 13:23:32,806 INFO L85 PathProgramCache]: Analyzing trace with hash -329237214, now seen corresponding path program 4 times [2024-09-22 13:23:32,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 13:23:32,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434773620] [2024-09-22 13:23:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 13:23:32,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 13:23:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 13:23:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 12 proven. 48 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-22 13:23:33,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 13:23:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434773620] [2024-09-22 13:23:33,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434773620] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 13:23:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659386961] [2024-09-22 13:23:33,246 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-22 13:23:33,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 13:23:33,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 13:23:33,248 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 13:23:33,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-22 13:23:33,321 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-22 13:23:33,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 13:23:33,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-22 13:23:33,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 13:23:33,363 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-09-22 13:23:33,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-22 13:23:33,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659386961] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 13:23:33,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-22 13:23:33,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-09-22 13:23:33,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671534898] [2024-09-22 13:23:33,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 13:23:33,364 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 13:23:33,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 13:23:33,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 13:23:33,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-09-22 13:23:33,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:33,366 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 13:23:33,366 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-09-22 13:23:33,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:33,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 13:23:33,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 13:23:33,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 13:23:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 13:23:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 13:23:33,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-09-22 13:23:33,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-09-22 13:23:33,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-22 13:23:33,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-22 13:23:33,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-22 13:23:33,861 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-22 13:23:33,866 INFO L408 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-09-22 13:23:33,868 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-22 13:23:33,868 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-22 13:23:33,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 01:23:33 BasicIcfg [2024-09-22 13:23:33,870 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-22 13:23:33,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-22 13:23:33,871 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-22 13:23:33,871 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-22 13:23:33,871 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 01:23:28" (3/4) ... [2024-09-22 13:23:33,872 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-22 13:23:33,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-09-22 13:23:33,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-09-22 13:23:33,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-09-22 13:23:33,877 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2024-09-22 13:23:33,878 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-09-22 13:23:33,878 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-09-22 13:23:33,878 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-09-22 13:23:33,932 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-09-22 13:23:33,932 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-09-22 13:23:33,932 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-22 13:23:33,933 INFO L158 Benchmark]: Toolchain (without parser) took 6407.86ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 138.5MB in the beginning and 99.8MB in the end (delta: 38.7MB). Peak memory consumption was 172.1MB. Max. memory is 16.1GB. [2024-09-22 13:23:33,933 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-22 13:23:33,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.09ms. Allocated memory is still 167.8MB. Free memory was 138.3MB in the beginning and 132.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-22 13:23:33,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.22ms. Allocated memory is still 167.8MB. Free memory was 132.1MB in the beginning and 130.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-22 13:23:33,933 INFO L158 Benchmark]: Boogie Preprocessor took 16.12ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 129.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-22 13:23:33,934 INFO L158 Benchmark]: RCFGBuilder took 463.44ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 123.3MB in the end (delta: 6.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-22 13:23:33,934 INFO L158 Benchmark]: TraceAbstraction took 5641.52ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 123.3MB in the beginning and 104.0MB in the end (delta: 19.3MB). Peak memory consumption was 156.3MB. Max. memory is 16.1GB. [2024-09-22 13:23:33,934 INFO L158 Benchmark]: Witness Printer took 61.72ms. Allocated memory is still 302.0MB. Free memory was 104.0MB in the beginning and 99.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-22 13:23:33,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.09ms. Allocated memory is still 167.8MB. Free memory was 138.3MB in the beginning and 132.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.22ms. Allocated memory is still 167.8MB. Free memory was 132.1MB in the beginning and 130.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.12ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 129.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.44ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 123.3MB in the end (delta: 6.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5641.52ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 123.3MB in the beginning and 104.0MB in the end (delta: 19.3MB). Peak memory consumption was 156.3MB. Max. memory is 16.1GB. * Witness Printer took 61.72ms. Allocated memory is still 302.0MB. Free memory was 104.0MB in the beginning and 99.8MB 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: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14407, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 1421, dependent conditional: 1417, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 0, independent unconditional: 12986, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 0, independent unconditional: 12986, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 915, independent: 911, independent conditional: 0, independent unconditional: 911, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 915, independent: 885, independent conditional: 0, independent unconditional: 885, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 12990, independent: 12075, independent conditional: 0, independent unconditional: 12075, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 915, unknown conditional: 0, unknown unconditional: 915] , Statistics on independence cache: Total cache size (in pairs): 915, Positive cache size: 911, Positive conditional cache size: 0, Positive unconditional cache size: 911, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 11710, Maximal queried relation: 0, Independence queries for same thread: 1417, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 617, Number of trivial persistent sets: 513, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1280, independent: 1276, independent conditional: 0, independent unconditional: 1276, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14407, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 1421, dependent conditional: 1417, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 11710, independent unconditional: 1276, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 0, independent unconditional: 12986, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12990, independent: 12986, independent conditional: 0, independent unconditional: 12986, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 915, independent: 911, independent conditional: 0, independent unconditional: 911, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 915, independent: 885, independent conditional: 0, independent unconditional: 885, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 12990, independent: 12075, independent conditional: 0, independent unconditional: 12075, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 915, unknown conditional: 0, unknown unconditional: 915] , Statistics on independence cache: Total cache size (in pairs): 915, Positive cache size: 911, Positive conditional cache size: 0, Positive unconditional cache size: 911, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 11710, Maximal queried relation: 0, Independence queries for same thread: 1417 - PositiveResult [Line: 127]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 59 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 1.0s, 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: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 708 NumberOfCodeBlocks, 675 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 761 ConstructedInterpolants, 0 QuantifiedInterpolants, 2904 SizeOfPredicates, 6 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 548/873 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! [2024-09-22 13:23:33,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-09-22 13:23:34,166 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