./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2cc22fce 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/popl20-nonblocking-cntr.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 fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2cc22fc-m [2024-07-22 11:29:11,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-22 11:29:11,668 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-22 11:29:11,671 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-22 11:29:11,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-22 11:29:11,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-22 11:29:11,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-22 11:29:11,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-22 11:29:11,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-22 11:29:11,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-22 11:29:11,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-22 11:29:11,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-22 11:29:11,709 INFO L153 SettingsManager]: * Use SBE=true [2024-07-22 11:29:11,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-22 11:29:11,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-22 11:29:11,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-22 11:29:11,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-22 11:29:11,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-22 11:29:11,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-22 11:29:11,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-22 11:29:11,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-22 11:29:11,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-22 11:29:11,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-22 11:29:11,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-22 11:29:11,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-22 11:29:11,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-22 11:29:11,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-22 11:29:11,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-22 11:29:11,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-22 11:29:11,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-22 11:29:11,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 11:29:11,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-22 11:29:11,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-22 11:29:11,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-22 11:29:11,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-22 11:29:11,715 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-22 11:29:11,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-22 11:29:11,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-22 11:29:11,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-22 11:29:11,716 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-22 11:29:11,716 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-22 11:29:11,716 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-22 11:29:11,716 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea [2024-07-22 11:29:11,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-22 11:29:11,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-22 11:29:11,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-22 11:29:11,905 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-22 11:29:11,905 INFO L274 PluginConnector]: CDTParser initialized [2024-07-22 11:29:11,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2024-07-22 11:29:13,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-22 11:29:13,202 INFO L384 CDTParser]: Found 1 translation units. [2024-07-22 11:29:13,203 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2024-07-22 11:29:13,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bd0326f3e/a415ef14d2d242948614ddae2e451d75/FLAGc033cbd4c [2024-07-22 11:29:13,219 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bd0326f3e/a415ef14d2d242948614ddae2e451d75 [2024-07-22 11:29:13,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-22 11:29:13,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-22 11:29:13,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-22 11:29:13,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-22 11:29:13,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-22 11:29:13,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c85f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13, skipping insertion in model container [2024-07-22 11:29:13,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-22 11:29:13,389 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2063,2076] [2024-07-22 11:29:13,393 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 11:29:13,399 INFO L202 MainTranslator]: Completed pre-run [2024-07-22 11:29:13,417 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2063,2076] [2024-07-22 11:29:13,423 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 11:29:13,436 INFO L206 MainTranslator]: Completed translation [2024-07-22 11:29:13,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13 WrapperNode [2024-07-22 11:29:13,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-22 11:29:13,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-22 11:29:13,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-22 11:29:13,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-22 11:29:13,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,464 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 41 [2024-07-22 11:29:13,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-22 11:29:13,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-22 11:29:13,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-22 11:29:13,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-22 11:29:13,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-22 11:29:13,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-22 11:29:13,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-22 11:29:13,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-22 11:29:13,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (1/1) ... [2024-07-22 11:29:13,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 11:29:13,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:13,517 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) [2024-07-22 11:29:13,527 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 [2024-07-22 11:29:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-22 11:29:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-22 11:29:13,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-22 11:29:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-22 11:29:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-22 11:29:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-22 11:29:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-07-22 11:29:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-07-22 11:29:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-22 11:29:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-22 11:29:13,557 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-22 11:29:13,620 INFO L244 CfgBuilder]: Building ICFG [2024-07-22 11:29:13,622 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-22 11:29:13,729 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-22 11:29:13,729 INFO L293 CfgBuilder]: Performing block encoding [2024-07-22 11:29:13,885 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-22 11:29:13,886 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-07-22 11:29:13,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:29:13 BoogieIcfgContainer [2024-07-22 11:29:13,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-22 11:29:13,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-22 11:29:13,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-22 11:29:13,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-22 11:29:13,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:29:13" (1/3) ... [2024-07-22 11:29:13,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d494a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:29:13, skipping insertion in model container [2024-07-22 11:29:13,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:29:13" (2/3) ... [2024-07-22 11:29:13,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d494a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:29:13, skipping insertion in model container [2024-07-22 11:29:13,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:29:13" (3/3) ... [2024-07-22 11:29:13,892 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr.wvr.c [2024-07-22 11:29:13,899 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-07-22 11:29:13,907 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-22 11:29:13,907 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-07-22 11:29:13,907 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-22 11:29:13,933 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-07-22 11:29:13,961 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 11:29:13,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-22 11:29:13,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:13,963 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) [2024-07-22 11:29:13,974 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 [2024-07-22 11:29:14,004 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-22 11:29:14,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-22 11:29:14,027 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d49b456, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 11:29:14,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-07-22 11:29:14,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 11:29:14,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 11:29:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1634652143, now seen corresponding path program 1 times [2024-07-22 11:29:14,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 11:29:14,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354909382] [2024-07-22 11:29:14,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:14,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 11:29:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:14,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 11:29:14,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 11:29:14,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354909382] [2024-07-22 11:29:14,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354909382] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 11:29:14,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 11:29:14,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-22 11:29:14,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876840582] [2024-07-22 11:29:14,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 11:29:14,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-22 11:29:14,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 11:29:14,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-22 11:29:14,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-07-22 11:29:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:14,451 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 11:29:14,452 INFO L496 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) [2024-07-22 11:29:14,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:14,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-22 11:29:14,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 11:29:14,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 11:29:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash 477362289, now seen corresponding path program 1 times [2024-07-22 11:29:14,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 11:29:14,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668889458] [2024-07-22 11:29:14,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:14,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 11:29:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:14,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 11:29:14,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 11:29:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668889458] [2024-07-22 11:29:14,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668889458] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 11:29:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718443894] [2024-07-22 11:29:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:14,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:14,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:14,729 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) [2024-07-22 11:29:14,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-22 11:29:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:14,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2024-07-22 11:29:14,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 11:29:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 11:29:14,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 11:29:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-07-22 11:29:15,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718443894] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 11:29:15,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 11:29:15,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 19 [2024-07-22 11:29:15,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888625683] [2024-07-22 11:29:15,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 11:29:15,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-07-22 11:29:15,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 11:29:15,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-07-22 11:29:15,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-07-22 11:29:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:15,038 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 11:29:15,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 19 states have internal predecessors, (49), 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) [2024-07-22 11:29:15,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:15,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:15,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-07-22 11:29:15,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-07-22 11:29:15,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 11:29:15,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 11:29:15,600 INFO L85 PathProgramCache]: Analyzing trace with hash 870790765, now seen corresponding path program 2 times [2024-07-22 11:29:15,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 11:29:15,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668913111] [2024-07-22 11:29:15,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:15,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 11:29:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-07-22 11:29:15,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 11:29:15,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668913111] [2024-07-22 11:29:15,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668913111] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 11:29:15,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853075301] [2024-07-22 11:29:15,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-22 11:29:15,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:15,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:15,788 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) [2024-07-22 11:29:15,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-22 11:29:15,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-22 11:29:15,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-22 11:29:15,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 15 conjunts are in the unsatisfiable core [2024-07-22 11:29:15,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 11:29:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-07-22 11:29:15,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 11:29:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 11:29:16,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853075301] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 11:29:16,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 11:29:16,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 10] total 12 [2024-07-22 11:29:16,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114336344] [2024-07-22 11:29:16,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 11:29:16,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-07-22 11:29:16,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 11:29:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-07-22 11:29:16,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-07-22 11:29:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:16,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 11:29:16,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2024-07-22 11:29:16,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:16,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:16,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:16,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:16,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:16,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:16,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-07-22 11:29:16,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:16,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 11:29:16,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 11:29:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1440519853, now seen corresponding path program 3 times [2024-07-22 11:29:16,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 11:29:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486579575] [2024-07-22 11:29:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 11:29:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-07-22 11:29:16,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 11:29:16,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486579575] [2024-07-22 11:29:16,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486579575] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 11:29:16,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159639721] [2024-07-22 11:29:16,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-22 11:29:16,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:16,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:16,901 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) [2024-07-22 11:29:16,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-22 11:29:16,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-07-22 11:29:16,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-22 11:29:16,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 21 conjunts are in the unsatisfiable core [2024-07-22 11:29:16,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 11:29:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 12 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 11:29:17,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 11:29:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-07-22 11:29:17,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159639721] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 11:29:17,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 11:29:17,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 14] total 49 [2024-07-22 11:29:17,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043982168] [2024-07-22 11:29:17,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 11:29:17,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-07-22 11:29:17,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 11:29:17,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-07-22 11:29:17,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=1888, Unknown=0, NotChecked=0, Total=2352 [2024-07-22 11:29:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:17,664 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 11:29:17,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 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) [2024-07-22 11:29:17,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:17,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:17,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:17,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:18,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-07-22 11:29:18,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-07-22 11:29:18,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:18,935 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 11:29:18,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 11:29:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1063040371, now seen corresponding path program 4 times [2024-07-22 11:29:18,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 11:29:18,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423438317] [2024-07-22 11:29:18,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:18,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 11:29:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 34 proven. 68 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-07-22 11:29:19,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 11:29:19,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423438317] [2024-07-22 11:29:19,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423438317] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 11:29:19,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415566059] [2024-07-22 11:29:19,205 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-22 11:29:19,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:19,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:19,206 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) [2024-07-22 11:29:19,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-07-22 11:29:19,247 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-22 11:29:19,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-22 11:29:19,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2024-07-22 11:29:19,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 11:29:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 34 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 11:29:19,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 11:29:19,789 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 35 proven. 58 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-07-22 11:29:19,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415566059] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 11:29:19,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 11:29:19,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 11] total 38 [2024-07-22 11:29:19,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554755126] [2024-07-22 11:29:19,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 11:29:19,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-07-22 11:29:19,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 11:29:19,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-07-22 11:29:19,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1119, Unknown=0, NotChecked=0, Total=1406 [2024-07-22 11:29:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:19,793 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 11:29:19,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 38 states have internal predecessors, (106), 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) [2024-07-22 11:29:19,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:19,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:19,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:19,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-07-22 11:29:19,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:20,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-07-22 11:29:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-07-22 11:29:20,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-07-22 11:29:20,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:20,737 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 11:29:20,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 11:29:20,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1315114125, now seen corresponding path program 5 times [2024-07-22 11:29:20,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 11:29:20,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281556142] [2024-07-22 11:29:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:20,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 11:29:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-07-22 11:29:20,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 11:29:20,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281556142] [2024-07-22 11:29:20,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281556142] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 11:29:20,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180344675] [2024-07-22 11:29:20,981 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-07-22 11:29:20,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:20,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:20,982 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) [2024-07-22 11:29:20,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-07-22 11:29:21,026 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-07-22 11:29:21,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-22 11:29:21,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjunts are in the unsatisfiable core [2024-07-22 11:29:21,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 11:29:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-07-22 11:29:21,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 11:29:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-07-22 11:29:21,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180344675] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 11:29:21,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 11:29:21,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2024-07-22 11:29:21,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492077017] [2024-07-22 11:29:21,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 11:29:21,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-07-22 11:29:21,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 11:29:21,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-07-22 11:29:21,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-07-22 11:29:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:21,215 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 11:29:21,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 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) [2024-07-22 11:29:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-07-22 11:29:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-07-22 11:29:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-07-22 11:29:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-07-22 11:29:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-07-22 11:29:21,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-07-22 11:29:21,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:21,684 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 11:29:21,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 11:29:21,685 INFO L85 PathProgramCache]: Analyzing trace with hash 341124267, now seen corresponding path program 6 times [2024-07-22 11:29:21,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 11:29:21,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253362385] [2024-07-22 11:29:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 11:29:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 11:29:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 11:29:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 16 proven. 212 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-07-22 11:29:22,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 11:29:22,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253362385] [2024-07-22 11:29:22,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253362385] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 11:29:22,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026307050] [2024-07-22 11:29:22,284 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-07-22 11:29:22,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 11:29:22,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 11:29:22,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-22 11:29:22,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-07-22 11:29:22,360 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-07-22 11:29:22,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-22 11:29:22,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 37 conjunts are in the unsatisfiable core [2024-07-22 11:29:22,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 11:29:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 12 proven. 252 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-22 11:29:23,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 11:29:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 130 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 11:29:25,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026307050] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 11:29:25,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 11:29:25,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 29, 30] total 74 [2024-07-22 11:29:25,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77105912] [2024-07-22 11:29:25,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 11:29:25,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-07-22 11:29:25,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 11:29:25,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-07-22 11:29:25,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1017, Invalid=4533, Unknown=0, NotChecked=0, Total=5550 [2024-07-22 11:29:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:25,142 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 11:29:25,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.1866666666666665) internal successors, (164), 74 states have internal predecessors, (164), 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) [2024-07-22 11:29:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-07-22 11:29:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2024-07-22 11:29:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-07-22 11:29:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-07-22 11:29:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 11:29:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 11:29:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-07-22 11:29:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 11:29:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-07-22 11:29:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-07-22 11:29:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-07-22 11:29:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-07-22 11:29:28,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-07-22 11:29:28,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-07-22 11:29:28,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-07-22 11:29:28,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-07-22 11:29:29,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-07-22 11:29:29,071 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1] [2024-07-22 11:29:29,075 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-22 11:29:29,075 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-22 11:29:29,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 11:29:29 BasicIcfg [2024-07-22 11:29:29,079 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-22 11:29:29,079 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-07-22 11:29:29,079 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-07-22 11:29:29,079 INFO L274 PluginConnector]: Witness Printer initialized [2024-07-22 11:29:29,080 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:29:13" (3/4) ... [2024-07-22 11:29:29,081 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-07-22 11:29:29,084 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-07-22 11:29:29,084 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-07-22 11:29:29,090 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-07-22 11:29:29,090 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-07-22 11:29:29,091 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-07-22 11:29:29,091 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-07-22 11:29:29,162 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-07-22 11:29:29,162 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-07-22 11:29:29,162 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-07-22 11:29:29,163 INFO L158 Benchmark]: Toolchain (without parser) took 15940.29ms. Allocated memory was 209.7MB in the beginning and 503.3MB in the end (delta: 293.6MB). Free memory was 138.5MB in the beginning and 399.1MB in the end (delta: -260.6MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2024-07-22 11:29:29,163 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 97.4MB in the beginning and 97.3MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 11:29:29,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.91ms. Allocated memory is still 209.7MB. Free memory was 138.2MB in the beginning and 126.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-07-22 11:29:29,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.01ms. Allocated memory is still 209.7MB. Free memory was 126.3MB in the beginning and 124.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 11:29:29,164 INFO L158 Benchmark]: Boogie Preprocessor took 23.70ms. Allocated memory is still 209.7MB. Free memory was 124.9MB in the beginning and 123.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 11:29:29,164 INFO L158 Benchmark]: RCFGBuilder took 396.58ms. Allocated memory is still 209.7MB. Free memory was 123.7MB in the beginning and 171.4MB in the end (delta: -47.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2024-07-22 11:29:29,164 INFO L158 Benchmark]: TraceAbstraction took 15191.20ms. Allocated memory was 209.7MB in the beginning and 503.3MB in the end (delta: 293.6MB). Free memory was 170.5MB in the beginning and 403.3MB in the end (delta: -232.8MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2024-07-22 11:29:29,164 INFO L158 Benchmark]: Witness Printer took 83.12ms. Allocated memory is still 503.3MB. Free memory was 403.3MB in the beginning and 399.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-07-22 11:29:29,165 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 97.4MB in the beginning and 97.3MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.91ms. Allocated memory is still 209.7MB. Free memory was 138.2MB in the beginning and 126.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.01ms. Allocated memory is still 209.7MB. Free memory was 126.3MB in the beginning and 124.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.70ms. Allocated memory is still 209.7MB. Free memory was 124.9MB in the beginning and 123.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.58ms. Allocated memory is still 209.7MB. Free memory was 123.7MB in the beginning and 171.4MB in the end (delta: -47.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15191.20ms. Allocated memory was 209.7MB in the beginning and 503.3MB in the end (delta: 293.6MB). Free memory was 170.5MB in the beginning and 403.3MB in the end (delta: -232.8MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Witness Printer took 83.12ms. Allocated memory is still 503.3MB. Free memory was 403.3MB in the beginning and 399.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4913, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 845, dependent conditional: 841, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4174, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 106, dependent conditional: 102, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4174, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 106, dependent conditional: 102, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5138, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1070, dependent conditional: 691, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5138, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1070, dependent conditional: 578, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5138, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1070, dependent conditional: 578, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 225, independent: 180, independent conditional: 27, independent unconditional: 153, dependent: 45, dependent conditional: 41, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 225, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 73, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 45, dependent conditional: 41, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 73, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 45, dependent conditional: 41, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 190, independent: 79, independent conditional: 51, independent unconditional: 28, dependent: 112, dependent conditional: 72, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5138, independent: 3888, independent conditional: 246, independent unconditional: 3642, dependent: 1025, dependent conditional: 537, dependent unconditional: 488, unknown: 225, unknown conditional: 68, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 225, Positive cache size: 180, Positive conditional cache size: 27, Positive unconditional cache size: 153, Negative cache size: 45, Negative conditional cache size: 41, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 113, Maximal queried relation: 7, Independence queries for same thread: 739 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 53, Number of trivial persistent sets: 44, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 183, independent: 179, independent conditional: 0, independent unconditional: 179, 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: 4913, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 845, dependent conditional: 841, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4174, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 106, dependent conditional: 102, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4174, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 106, dependent conditional: 102, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5138, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1070, dependent conditional: 691, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5138, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1070, dependent conditional: 578, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5138, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1070, dependent conditional: 578, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 225, independent: 180, independent conditional: 27, independent unconditional: 153, dependent: 45, dependent conditional: 41, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 225, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 73, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 45, dependent conditional: 41, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 73, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 45, dependent conditional: 41, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 190, independent: 79, independent conditional: 51, independent unconditional: 28, dependent: 112, dependent conditional: 72, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5138, independent: 3888, independent conditional: 246, independent unconditional: 3642, dependent: 1025, dependent conditional: 537, dependent unconditional: 488, unknown: 225, unknown conditional: 68, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 225, Positive cache size: 180, Positive conditional cache size: 27, Positive unconditional cache size: 153, Negative cache size: 45, Negative conditional cache size: 41, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 113, Maximal queried relation: 7, Independence queries for same thread: 739 - PositiveResult [Line: 77]: 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: 15.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 6.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 292, 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, 6.7s InterpolantComputationTime, 508 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 735 ConstructedInterpolants, 0 QuantifiedInterpolants, 6356 SizeOfPredicates, 49 NumberOfNonLiveVariables, 726 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 645/1717 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! [2024-07-22 11:29:29,202 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 [2024-07-22 11:29:29,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE