./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b03bd7cf 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 ../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.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 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-b03bd7c-m [2024-10-28 21:15:33,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-28 21:15:33,962 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-28 21:15:33,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-28 21:15:33,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-28 21:15:33,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-28 21:15:33,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-28 21:15:33,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-28 21:15:33,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-28 21:15:33,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-28 21:15:33,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-28 21:15:33,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-28 21:15:33,996 INFO L153 SettingsManager]: * Use SBE=true [2024-10-28 21:15:33,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-28 21:15:33,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-28 21:15:33,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-28 21:15:33,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-28 21:15:34,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-28 21:15:34,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-28 21:15:34,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-28 21:15:34,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-28 21:15:34,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-28 21:15:34,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-28 21:15:34,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-28 21:15:34,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-28 21:15:34,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-28 21:15:34,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-28 21:15:34,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-28 21:15:34,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-28 21:15:34,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-28 21:15:34,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 21:15:34,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-28 21:15:34,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-28 21:15:34,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-28 21:15:34,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-28 21:15:34,007 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-28 21:15:34,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-28 21:15:34,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-28 21:15:34,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-28 21:15:34,009 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-28 21:15:34,010 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-28 21:15:34,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 [2024-10-28 21:15:34,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-28 21:15:34,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-28 21:15:34,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-28 21:15:34,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-28 21:15:34,285 INFO L274 PluginConnector]: CDTParser initialized [2024-10-28 21:15:34,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-10-28 21:15:35,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-28 21:15:35,993 INFO L384 CDTParser]: Found 1 translation units. [2024-10-28 21:15:35,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-10-28 21:15:36,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/43a091e8c/328e3854b8e149628b558f15f3d705f4/FLAG25e6a516a [2024-10-28 21:15:36,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/43a091e8c/328e3854b8e149628b558f15f3d705f4 [2024-10-28 21:15:36,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-28 21:15:36,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-28 21:15:36,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-28 21:15:36,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-28 21:15:36,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-28 21:15:36,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575b7697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36, skipping insertion in model container [2024-10-28 21:15:36,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-28 21:15:36,251 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c[2124,2137] [2024-10-28 21:15:36,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 21:15:36,270 INFO L200 MainTranslator]: Completed pre-run [2024-10-28 21:15:36,292 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c[2124,2137] [2024-10-28 21:15:36,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 21:15:36,319 INFO L204 MainTranslator]: Completed translation [2024-10-28 21:15:36,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36 WrapperNode [2024-10-28 21:15:36,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-28 21:15:36,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-28 21:15:36,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-28 21:15:36,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-28 21:15:36,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,355 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2024-10-28 21:15:36,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-28 21:15:36,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-28 21:15:36,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-28 21:15:36,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-28 21:15:36,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-28 21:15:36,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-28 21:15:36,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-28 21:15:36,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-28 21:15:36,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (1/1) ... [2024-10-28 21:15:36,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 21:15:36,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 21:15:36,494 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) [2024-10-28 21:15:36,498 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 [2024-10-28 21:15:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-28 21:15:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-28 21:15:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-28 21:15:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-28 21:15:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-28 21:15:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-28 21:15:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-28 21:15:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-28 21:15:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-28 21:15:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-28 21:15:36,549 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-28 21:15:36,654 INFO L238 CfgBuilder]: Building ICFG [2024-10-28 21:15:36,660 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-28 21:15:36,864 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-28 21:15:36,867 INFO L287 CfgBuilder]: Performing block encoding [2024-10-28 21:15:37,029 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-28 21:15:37,030 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-28 21:15:37,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:15:37 BoogieIcfgContainer [2024-10-28 21:15:37,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-28 21:15:37,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-28 21:15:37,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-28 21:15:37,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-28 21:15:37,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:15:36" (1/3) ... [2024-10-28 21:15:37,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff25856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:15:37, skipping insertion in model container [2024-10-28 21:15:37,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:36" (2/3) ... [2024-10-28 21:15:37,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff25856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:15:37, skipping insertion in model container [2024-10-28 21:15:37,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:15:37" (3/3) ... [2024-10-28 21:15:37,044 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2024-10-28 21:15:37,059 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-28 21:15:37,059 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-28 21:15:37,060 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-28 21:15:37,101 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-28 21:15:37,146 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 21:15:37,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-28 21:15:37,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 21:15:37,148 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) [2024-10-28 21:15:37,149 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 [2024-10-28 21:15:37,169 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-28 21:15:37,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-28 21:15:37,187 INFO L333 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;@1d3ccb17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 21:15:37,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-28 21:15:37,673 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 21:15:37,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 21:15:37,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1837971387, now seen corresponding path program 1 times [2024-10-28 21:15:37,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 21:15:37,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535959596] [2024-10-28 21:15:37,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 21:15:37,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 21:15:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 21:15:38,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:38,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 21:15:38,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535959596] [2024-10-28 21:15:38,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535959596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 21:15:38,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 21:15:38,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-28 21:15:38,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136016504] [2024-10-28 21:15:38,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 21:15:38,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-28 21:15:38,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 21:15:38,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-28 21:15:38,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-28 21:15:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:38,083 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 21:15:38,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 21:15:38,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:38,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-28 21:15:38,151 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 21:15:38,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 21:15:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2089438113, now seen corresponding path program 1 times [2024-10-28 21:15:38,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 21:15:38,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093602100] [2024-10-28 21:15:38,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 21:15:38,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 21:15:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 21:15:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 21:15:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093602100] [2024-10-28 21:15:38,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093602100] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 21:15:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240040395] [2024-10-28 21:15:38,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 21:15:38,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:38,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 21:15:38,766 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) [2024-10-28 21:15:38,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-28 21:15:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 21:15:38,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-28 21:15:38,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 21:15:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:39,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 21:15:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:40,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240040395] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 21:15:40,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 21:15:40,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-10-28 21:15:40,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402198822] [2024-10-28 21:15:40,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 21:15:40,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-28 21:15:40,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 21:15:40,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-28 21:15:40,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2024-10-28 21:15:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:40,185 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 21:15:40,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 33 states have internal predecessors, (58), 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) [2024-10-28 21:15:40,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:40,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-28 21:15:41,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-28 21:15:41,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-28 21:15:41,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 21:15:41,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 21:15:41,609 INFO L85 PathProgramCache]: Analyzing trace with hash -760806605, now seen corresponding path program 2 times [2024-10-28 21:15:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 21:15:41,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571083081] [2024-10-28 21:15:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 21:15:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 21:15:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 21:15:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-28 21:15:42,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 21:15:42,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571083081] [2024-10-28 21:15:42,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571083081] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 21:15:42,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973397245] [2024-10-28 21:15:42,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-28 21:15:42,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 21:15:42,094 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) [2024-10-28 21:15:42,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-28 21:15:42,149 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-28 21:15:42,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 21:15:42,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-28 21:15:42,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 21:15:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:42,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 21:15:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:43,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973397245] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 21:15:43,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 21:15:43,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 15] total 41 [2024-10-28 21:15:43,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741593240] [2024-10-28 21:15:43,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 21:15:43,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-28 21:15:43,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 21:15:43,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-28 21:15:43,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1485, Unknown=0, NotChecked=0, Total=1722 [2024-10-28 21:15:43,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:43,178 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 21:15:43,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 41 states have internal predecessors, (71), 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) [2024-10-28 21:15:43,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:43,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-10-28 21:15:43,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-28 21:15:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-10-28 21:15:44,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-28 21:15:45,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:45,141 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 21:15:45,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 21:15:45,141 INFO L85 PathProgramCache]: Analyzing trace with hash 46489947, now seen corresponding path program 3 times [2024-10-28 21:15:45,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 21:15:45,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429627859] [2024-10-28 21:15:45,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 21:15:45,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 21:15:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 21:15:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-28 21:15:45,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 21:15:45,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429627859] [2024-10-28 21:15:45,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429627859] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 21:15:45,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622646917] [2024-10-28 21:15:45,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-28 21:15:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:45,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 21:15:45,422 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) [2024-10-28 21:15:45,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-28 21:15:45,480 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-28 21:15:45,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 21:15:45,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-28 21:15:45,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 21:15:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-28 21:15:45,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 21:15:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-28 21:15:45,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622646917] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 21:15:45,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 21:15:45,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-10-28 21:15:45,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349600685] [2024-10-28 21:15:45,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 21:15:45,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-28 21:15:45,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 21:15:45,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-28 21:15:45,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-28 21:15:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:45,751 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 21:15:45,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 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) [2024-10-28 21:15:45,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:45,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-10-28 21:15:45,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-10-28 21:15:45,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:46,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:46,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-28 21:15:46,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-10-28 21:15:46,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-28 21:15:46,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-28 21:15:46,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:46,312 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 21:15:46,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 21:15:46,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1569251105, now seen corresponding path program 4 times [2024-10-28 21:15:46,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 21:15:46,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4914713] [2024-10-28 21:15:46,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 21:15:46,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 21:15:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 21:15:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-28 21:15:46,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 21:15:46,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4914713] [2024-10-28 21:15:46,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4914713] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 21:15:46,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611965302] [2024-10-28 21:15:46,785 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-28 21:15:46,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:46,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 21:15:46,787 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) [2024-10-28 21:15:46,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-28 21:15:46,840 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-28 21:15:46,840 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 21:15:46,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-28 21:15:46,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 21:15:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:47,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 21:15:47,850 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-28 21:15:47,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611965302] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 21:15:47,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 21:15:47,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 19] total 51 [2024-10-28 21:15:47,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282745868] [2024-10-28 21:15:47,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 21:15:47,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-28 21:15:47,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 21:15:47,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-28 21:15:47,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=2366, Unknown=0, NotChecked=0, Total=2652 [2024-10-28 21:15:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:47,854 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 21:15:47,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.75) internal successors, (91), 51 states have internal predecessors, (91), 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) [2024-10-28 21:15:47,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:47,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-10-28 21:15:47,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-10-28 21:15:47,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-28 21:15:47,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-28 21:15:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-10-28 21:15:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-28 21:15:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-10-28 21:15:50,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-28 21:15:50,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:50,322 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 21:15:50,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 21:15:50,323 INFO L85 PathProgramCache]: Analyzing trace with hash 307733691, now seen corresponding path program 5 times [2024-10-28 21:15:50,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 21:15:50,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531014952] [2024-10-28 21:15:50,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 21:15:50,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 21:15:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 21:15:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-28 21:15:50,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 21:15:50,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531014952] [2024-10-28 21:15:50,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531014952] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 21:15:50,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224888434] [2024-10-28 21:15:50,796 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-28 21:15:50,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:15:50,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 21:15:50,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-28 21:15:50,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-28 21:15:50,844 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-10-28 21:15:50,844 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 21:15:50,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-28 21:15:50,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 21:15:51,295 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:51,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 21:15:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 21:15:51,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224888434] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 21:15:51,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 21:15:51,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22, 19] total 50 [2024-10-28 21:15:51,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179478223] [2024-10-28 21:15:51,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 21:15:51,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-10-28 21:15:51,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 21:15:51,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-10-28 21:15:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2219, Unknown=0, NotChecked=0, Total=2550 [2024-10-28 21:15:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:51,902 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 21:15:51,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 1.6862745098039216) internal successors, (86), 50 states have internal predecessors, (86), 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) [2024-10-28 21:15:51,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:51,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-10-28 21:15:51,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-10-28 21:15:51,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-28 21:15:51,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2024-10-28 21:15:51,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 21:15:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 21:15:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-10-28 21:15:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-10-28 21:15:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-28 21:15:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-10-28 21:15:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-10-28 21:15:59,941 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-28 21:15:59,942 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-10-28 21:15:59,942 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-28 21:15:59,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-28 21:16:00,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 21:16:00,149 INFO L407 BasicCegarLoop]: Path program histogram: [5, 1] [2024-10-28 21:16:00,156 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-28 21:16:00,156 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-28 21:16:00,173 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 [2024-10-28 21:16:00,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:16:00 BasicIcfg [2024-10-28 21:16:00,174 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-28 21:16:00,174 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-28 21:16:00,174 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-28 21:16:00,174 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-28 21:16:00,175 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:15:37" (3/4) ... [2024-10-28 21:16:00,177 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-28 21:16:00,179 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-28 21:16:00,179 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-28 21:16:00,182 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-10-28 21:16:00,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-28 21:16:00,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-28 21:16:00,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-28 21:16:00,255 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-28 21:16:00,255 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-10-28 21:16:00,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-28 21:16:00,256 INFO L158 Benchmark]: Toolchain (without parser) took 24233.92ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 99.6MB in the beginning and 152.0MB in the end (delta: -52.4MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. [2024-10-28 21:16:00,256 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-28 21:16:00,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.81ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 86.6MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-28 21:16:00,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.74ms. Allocated memory is still 167.8MB. Free memory was 86.4MB in the beginning and 85.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-28 21:16:00,257 INFO L158 Benchmark]: Boogie Preprocessor took 35.04ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 83.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-28 21:16:00,257 INFO L158 Benchmark]: RCFGBuilder took 636.67ms. Allocated memory is still 167.8MB. Free memory was 83.8MB in the beginning and 116.3MB in the end (delta: -32.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-28 21:16:00,257 INFO L158 Benchmark]: TraceAbstraction took 23141.65ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 115.8MB in the beginning and 156.2MB in the end (delta: -40.4MB). Peak memory consumption was 144.6MB. Max. memory is 16.1GB. [2024-10-28 21:16:00,257 INFO L158 Benchmark]: Witness Printer took 81.06ms. Allocated memory is still 352.3MB. Free memory was 156.2MB in the beginning and 152.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-28 21:16:00,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.81ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 86.6MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.74ms. Allocated memory is still 167.8MB. Free memory was 86.4MB in the beginning and 85.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.04ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 83.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 636.67ms. Allocated memory is still 167.8MB. Free memory was 83.8MB in the beginning and 116.3MB in the end (delta: -32.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 23141.65ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 115.8MB in the beginning and 156.2MB in the end (delta: -40.4MB). Peak memory consumption was 144.6MB. Max. memory is 16.1GB. * Witness Printer took 81.06ms. Allocated memory is still 352.3MB. Free memory was 156.2MB in the beginning and 152.0MB 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: 1777, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 368, dependent conditional: 364, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1447, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 38, dependent conditional: 34, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1447, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 38, dependent conditional: 34, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1654, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 245, dependent conditional: 241, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1654, independent: 1409, independent conditional: 32, independent unconditional: 1377, dependent: 245, dependent conditional: 144, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1654, independent: 1409, independent conditional: 32, independent unconditional: 1377, dependent: 245, dependent conditional: 144, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 193, independent: 162, independent conditional: 9, independent unconditional: 153, dependent: 31, dependent conditional: 27, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 193, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 10, independent conditional: 9, independent unconditional: 1, dependent: 31, dependent conditional: 27, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 10, independent conditional: 9, independent unconditional: 1, dependent: 31, dependent conditional: 27, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1629, independent: 430, independent conditional: 296, independent unconditional: 134, dependent: 1198, dependent conditional: 895, dependent unconditional: 303, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1654, independent: 1247, independent conditional: 23, independent unconditional: 1224, dependent: 214, dependent conditional: 117, dependent unconditional: 97, unknown: 193, unknown conditional: 36, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 162, Positive conditional cache size: 9, Positive unconditional cache size: 153, Negative cache size: 31, Negative conditional cache size: 27, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1293, Maximal queried relation: 6, Independence queries for same thread: 330, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 58, Number of trivial persistent sets: 49, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 185, independent: 181, independent conditional: 0, independent unconditional: 181, 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: 1777, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 368, dependent conditional: 364, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1447, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 38, dependent conditional: 34, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1447, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 38, dependent conditional: 34, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1654, independent: 1409, independent conditional: 1228, independent unconditional: 181, dependent: 245, dependent conditional: 241, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1654, independent: 1409, independent conditional: 32, independent unconditional: 1377, dependent: 245, dependent conditional: 144, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1654, independent: 1409, independent conditional: 32, independent unconditional: 1377, dependent: 245, dependent conditional: 144, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 193, independent: 162, independent conditional: 9, independent unconditional: 153, dependent: 31, dependent conditional: 27, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 193, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 10, independent conditional: 9, independent unconditional: 1, dependent: 31, dependent conditional: 27, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 10, independent conditional: 9, independent unconditional: 1, dependent: 31, dependent conditional: 27, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1629, independent: 430, independent conditional: 296, independent unconditional: 134, dependent: 1198, dependent conditional: 895, dependent unconditional: 303, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1654, independent: 1247, independent conditional: 23, independent unconditional: 1224, dependent: 214, dependent conditional: 117, dependent unconditional: 97, unknown: 193, unknown conditional: 36, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 162, Positive conditional cache size: 9, Positive unconditional cache size: 153, Negative cache size: 31, Negative conditional cache size: 27, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1293, Maximal queried relation: 6, Independence queries for same thread: 330 - PositiveResult [Line: 78]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 23.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 14.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 412, 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, 0.2s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 4277 SizeOfPredicates, 23 NumberOfNonLiveVariables, 579 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 140/589 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! [2024-10-28 21:16:00,281 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