./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dfe144c0 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-dfe144c-m [2024-07-20 20:09:41,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-20 20:09:41,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-20 20:09:41,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-20 20:09:41,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-20 20:09:41,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-20 20:09:41,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-20 20:09:41,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-20 20:09:41,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-20 20:09:41,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-20 20:09:41,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-20 20:09:41,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-20 20:09:41,423 INFO L153 SettingsManager]: * Use SBE=true [2024-07-20 20:09:41,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-20 20:09:41,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-20 20:09:41,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-20 20:09:41,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-20 20:09:41,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-20 20:09:41,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-20 20:09:41,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-20 20:09:41,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-20 20:09:41,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-20 20:09:41,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-20 20:09:41,428 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-20 20:09:41,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-20 20:09:41,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-20 20:09:41,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-20 20:09:41,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-20 20:09:41,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-20 20:09:41,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-20 20:09:41,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-20 20:09:41,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-20 20:09:41,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-20 20:09:41,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-20 20:09:41,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-20 20:09:41,432 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-20 20:09:41,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-20 20:09:41,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-20 20:09:41,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-20 20:09:41,433 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-20 20:09:41,434 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-20 20:09:41,434 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-20 20:09:41,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2024-07-20 20:09:41,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-20 20:09:41,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-20 20:09:41,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-20 20:09:41,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-20 20:09:41,743 INFO L274 PluginConnector]: CDTParser initialized [2024-07-20 20:09:41,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2024-07-20 20:09:42,943 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-20 20:09:43,223 INFO L384 CDTParser]: Found 1 translation units. [2024-07-20 20:09:43,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2024-07-20 20:09:43,240 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/591145cfc/49d644fbd1074682aaa05835080b5c2c/FLAGd65a9db85 [2024-07-20 20:09:43,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/591145cfc/49d644fbd1074682aaa05835080b5c2c [2024-07-20 20:09:43,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-20 20:09:43,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-20 20:09:43,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-20 20:09:43,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-20 20:09:43,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-20 20:09:43,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:43,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6ee4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43, skipping insertion in model container [2024-07-20 20:09:43,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:43,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-20 20:09:43,772 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2024-07-20 20:09:43,776 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-20 20:09:43,794 INFO L202 MainTranslator]: Completed pre-run [2024-07-20 20:09:43,844 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2024-07-20 20:09:43,845 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-20 20:09:43,895 INFO L206 MainTranslator]: Completed translation [2024-07-20 20:09:43,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43 WrapperNode [2024-07-20 20:09:43,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-20 20:09:43,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-20 20:09:43,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-20 20:09:43,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-20 20:09:43,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:43,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:43,973 INFO L138 Inliner]: procedures = 243, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2024-07-20 20:09:43,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-20 20:09:43,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-20 20:09:43,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-20 20:09:43,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-20 20:09:43,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:43,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:43,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:44,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:44,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:44,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:44,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:44,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:44,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-20 20:09:44,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-20 20:09:44,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-20 20:09:44,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-20 20:09:44,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (1/1) ... [2024-07-20 20:09:44,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-20 20:09:44,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:09:44,089 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) [2024-07-20 20:09:44,115 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 [2024-07-20 20:09:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-07-20 20:09:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-07-20 20:09:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-20 20:09:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-20 20:09:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-20 20:09:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-20 20:09:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-07-20 20:09:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-20 20:09:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-20 20:09:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-20 20:09:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-20 20:09:44,146 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-20 20:09:44,265 INFO L244 CfgBuilder]: Building ICFG [2024-07-20 20:09:44,268 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-20 20:09:44,493 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-20 20:09:44,493 INFO L293 CfgBuilder]: Performing block encoding [2024-07-20 20:09:44,668 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-20 20:09:44,668 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-07-20 20:09:44,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 08:09:44 BoogieIcfgContainer [2024-07-20 20:09:44,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-20 20:09:44,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-20 20:09:44,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-20 20:09:44,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-20 20:09:44,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 08:09:43" (1/3) ... [2024-07-20 20:09:44,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12abcc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 08:09:44, skipping insertion in model container [2024-07-20 20:09:44,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:09:43" (2/3) ... [2024-07-20 20:09:44,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12abcc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 08:09:44, skipping insertion in model container [2024-07-20 20:09:44,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 08:09:44" (3/3) ... [2024-07-20 20:09:44,676 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2024-07-20 20:09:44,688 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-07-20 20:09:44,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-20 20:09:44,700 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-07-20 20:09:44,700 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-20 20:09:44,764 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-07-20 20:09:44,805 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-20 20:09:44,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-20 20:09:44,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:09:44,807 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) [2024-07-20 20:09:44,827 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 [2024-07-20 20:09:44,870 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-20 20:09:44,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-20 20:09:44,892 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;@6bc20bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-20 20:09:44,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-07-20 20:09:45,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:45,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1794742339, now seen corresponding path program 1 times [2024-07-20 20:09:45,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:45,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078427831] [2024-07-20 20:09:45,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:45,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-07-20 20:09:45,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:45,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078427831] [2024-07-20 20:09:45,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078427831] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:09:45,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-20 20:09:45,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-20 20:09:45,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630106375] [2024-07-20 20:09:45,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:09:45,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-20 20:09:45,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-20 20:09:45,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-20 20:09:45,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:45,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:45,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2024-07-20 20:09:45,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:45,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-20 20:09:45,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:45,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1399994603, now seen corresponding path program 2 times [2024-07-20 20:09:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:45,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117629620] [2024-07-20 20:09:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:45,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:46,148 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-07-20 20:09:46,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:46,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117629620] [2024-07-20 20:09:46,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117629620] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:09:46,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-20 20:09:46,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-20 20:09:46,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648171807] [2024-07-20 20:09:46,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:09:46,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-20 20:09:46,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-20 20:09:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-20 20:09:46,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:46,153 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:46,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-07-20 20:09:46,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:46,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-20 20:09:46,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:46,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash 2026554384, now seen corresponding path program 3 times [2024-07-20 20:09:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:46,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10985751] [2024-07-20 20:09:46,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:46,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-07-20 20:09:46,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:46,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10985751] [2024-07-20 20:09:46,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10985751] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:09:46,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-20 20:09:46,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-20 20:09:46,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973870067] [2024-07-20 20:09:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:09:46,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-20 20:09:46,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:46,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-20 20:09:46,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-07-20 20:09:46,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:46,407 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:46,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-20 20:09:46,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:46,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:46,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-07-20 20:09:46,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:46,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:46,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1993113704, now seen corresponding path program 1 times [2024-07-20 20:09:46,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:46,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932116841] [2024-07-20 20:09:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:46,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-07-20 20:09:46,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:46,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932116841] [2024-07-20 20:09:46,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932116841] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:09:46,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81442408] [2024-07-20 20:09:46,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:46,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:46,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:09:46,753 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) [2024-07-20 20:09:46,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-20 20:09:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:46,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjunts are in the unsatisfiable core [2024-07-20 20:09:46,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:09:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-07-20 20:09:46,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-07-20 20:09:46,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81442408] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:09:46,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-07-20 20:09:46,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-07-20 20:09:46,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566554873] [2024-07-20 20:09:46,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:09:46,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-20 20:09:46,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:46,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-20 20:09:46,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-07-20 20:09:46,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:46,961 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:46,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-07-20 20:09:46,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:46,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:46,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:47,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-07-20 20:09:47,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:47,232 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:47,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:47,232 INFO L85 PathProgramCache]: Analyzing trace with hash 764258452, now seen corresponding path program 4 times [2024-07-20 20:09:47,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:47,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051895374] [2024-07-20 20:09:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:47,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-07-20 20:09:47,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051895374] [2024-07-20 20:09:47,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051895374] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:09:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195360144] [2024-07-20 20:09:47,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-20 20:09:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:09:47,422 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) [2024-07-20 20:09:47,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-20 20:09:47,547 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-20 20:09:47,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-20 20:09:47,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjunts are in the unsatisfiable core [2024-07-20 20:09:47,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:09:47,652 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-07-20 20:09:47,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-20 20:09:47,755 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-07-20 20:09:47,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195360144] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-20 20:09:47,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-20 20:09:47,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-07-20 20:09:47,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162767712] [2024-07-20 20:09:47,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-20 20:09:47,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-07-20 20:09:47,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:47,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-07-20 20:09:47,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-07-20 20:09:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:47,758 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:47,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2024-07-20 20:09:47,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:47,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:47,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:47,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:47,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:47,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-20 20:09:47,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-07-20 20:09:48,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:48,073 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:48,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:48,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1517966584, now seen corresponding path program 1 times [2024-07-20 20:09:48,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:48,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379311679] [2024-07-20 20:09:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:48,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 110 proven. 5 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-07-20 20:09:48,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:48,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379311679] [2024-07-20 20:09:48,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379311679] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:09:48,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171137655] [2024-07-20 20:09:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:48,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:48,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:09:48,252 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) [2024-07-20 20:09:48,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-20 20:09:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:48,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 5 conjunts are in the unsatisfiable core [2024-07-20 20:09:48,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:09:48,471 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-07-20 20:09:48,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-07-20 20:09:48,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171137655] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:09:48,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-07-20 20:09:48,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-07-20 20:09:48,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049944079] [2024-07-20 20:09:48,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:09:48,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-20 20:09:48,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:48,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-20 20:09:48,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-07-20 20:09:48,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:48,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:48,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-07-20 20:09:48,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:48,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:48,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:48,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:48,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-20 20:09:48,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-20 20:09:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:48,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-07-20 20:09:48,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:48,728 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:48,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -320106838, now seen corresponding path program 1 times [2024-07-20 20:09:48,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:48,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047096919] [2024-07-20 20:09:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:48,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 77 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-20 20:09:48,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:48,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047096919] [2024-07-20 20:09:48,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047096919] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:09:48,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951487725] [2024-07-20 20:09:48,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:48,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:48,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:09:48,884 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) [2024-07-20 20:09:48,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-07-20 20:09:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:49,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 6 conjunts are in the unsatisfiable core [2024-07-20 20:09:49,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:09:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-20 20:09:49,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-07-20 20:09:49,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951487725] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:09:49,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-07-20 20:09:49,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-07-20 20:09:49,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823733208] [2024-07-20 20:09:49,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:09:49,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-07-20 20:09:49,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:49,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-07-20 20:09:49,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-07-20 20:09:49,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:49,125 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:49,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2024-07-20 20:09:49,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:49,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:49,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:49,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:49,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-20 20:09:49,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:49,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-20 20:09:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-07-20 20:09:49,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-07-20 20:09:49,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-07-20 20:09:49,479 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:09:49,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:09:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1106591146, now seen corresponding path program 2 times [2024-07-20 20:09:49,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:09:49,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186298369] [2024-07-20 20:09:49,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:09:49,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:09:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:09:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-20 20:09:49,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:09:50,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186298369] [2024-07-20 20:09:50,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186298369] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:09:50,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505911796] [2024-07-20 20:09:50,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-20 20:09:50,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:50,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:09:50,002 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) [2024-07-20 20:09:50,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-07-20 20:09:50,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-20 20:09:50,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-20 20:09:50,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 23 conjunts are in the unsatisfiable core [2024-07-20 20:09:50,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:09:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-20 20:09:50,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-20 20:09:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-20 20:09:50,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505911796] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-20 20:09:50,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-20 20:09:50,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 30 [2024-07-20 20:09:50,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345225072] [2024-07-20 20:09:50,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-20 20:09:50,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-07-20 20:09:50,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:09:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-07-20 20:09:50,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2024-07-20 20:09:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:50,830 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:09:50,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 30 states have internal predecessors, (166), 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) [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-07-20 20:09:50,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:09:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:09:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-20 20:09:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-20 20:09:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-07-20 20:09:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-20 20:09:51,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-07-20 20:09:51,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-07-20 20:09:51,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-07-20 20:09:51,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-07-20 20:09:51,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:09:51,795 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1] [2024-07-20 20:09:51,797 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-20 20:09:51,797 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-20 20:09:51,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 08:09:51 BasicIcfg [2024-07-20 20:09:51,802 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-20 20:09:51,803 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-07-20 20:09:51,803 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-07-20 20:09:51,803 INFO L274 PluginConnector]: Witness Printer initialized [2024-07-20 20:09:51,804 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 08:09:44" (3/4) ... [2024-07-20 20:09:51,805 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-07-20 20:09:51,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-07-20 20:09:51,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-07-20 20:09:51,816 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2024-07-20 20:09:51,816 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-07-20 20:09:51,816 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-07-20 20:09:51,817 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-07-20 20:09:51,817 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-07-20 20:09:51,917 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-07-20 20:09:51,918 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-07-20 20:09:51,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-07-20 20:09:51,919 INFO L158 Benchmark]: Toolchain (without parser) took 8659.15ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 69.0MB in the beginning and 109.2MB in the end (delta: -40.2MB). Peak memory consumption was 104.1MB. Max. memory is 16.1GB. [2024-07-20 20:09:51,919 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-20 20:09:51,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.85ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 68.8MB in the beginning and 182.4MB in the end (delta: -113.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-07-20 20:09:51,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.77ms. Allocated memory is still 226.5MB. Free memory was 182.4MB in the beginning and 179.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-20 20:09:51,920 INFO L158 Benchmark]: Boogie Preprocessor took 62.21ms. Allocated memory is still 226.5MB. Free memory was 179.2MB in the beginning and 178.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-20 20:09:51,920 INFO L158 Benchmark]: RCFGBuilder took 630.38ms. Allocated memory is still 226.5MB. Free memory was 178.2MB in the beginning and 141.5MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-07-20 20:09:51,922 INFO L158 Benchmark]: TraceAbstraction took 7131.87ms. Allocated memory was 226.5MB in the beginning and 285.2MB in the end (delta: 58.7MB). Free memory was 140.4MB in the beginning and 113.4MB in the end (delta: 27.0MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. [2024-07-20 20:09:51,923 INFO L158 Benchmark]: Witness Printer took 115.32ms. Allocated memory is still 285.2MB. Free memory was 113.4MB in the beginning and 109.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-07-20 20:09:51,925 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.85ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 68.8MB in the beginning and 182.4MB in the end (delta: -113.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.77ms. Allocated memory is still 226.5MB. Free memory was 182.4MB in the beginning and 179.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.21ms. Allocated memory is still 226.5MB. Free memory was 179.2MB in the beginning and 178.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 630.38ms. Allocated memory is still 226.5MB. Free memory was 178.2MB in the beginning and 141.5MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7131.87ms. Allocated memory was 226.5MB in the beginning and 285.2MB in the end (delta: 58.7MB). Free memory was 140.4MB in the beginning and 113.4MB in the end (delta: 27.0MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. * Witness Printer took 115.32ms. Allocated memory is still 285.2MB. Free memory was 113.4MB in the beginning and 109.2MB 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: 4722, independent: 3695, independent conditional: 3044, independent unconditional: 651, dependent: 1027, dependent conditional: 1007, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3892, independent: 3695, independent conditional: 3044, independent unconditional: 651, dependent: 197, dependent conditional: 177, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3892, independent: 3695, independent conditional: 3044, independent unconditional: 651, dependent: 197, dependent conditional: 177, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4767, independent: 3695, independent conditional: 1, independent unconditional: 3694, dependent: 1072, dependent conditional: 874, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4767, independent: 3695, independent conditional: 1, independent unconditional: 3694, dependent: 1072, dependent conditional: 149, dependent unconditional: 923, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4767, independent: 3695, independent conditional: 1, independent unconditional: 3694, dependent: 1072, dependent conditional: 149, dependent unconditional: 923, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 493, independent: 460, independent conditional: 1, independent unconditional: 459, dependent: 33, dependent conditional: 10, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 493, independent: 441, independent conditional: 0, independent unconditional: 441, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 52, independent: 19, independent conditional: 1, independent unconditional: 18, dependent: 33, dependent conditional: 10, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 19, independent conditional: 1, independent unconditional: 18, dependent: 33, dependent conditional: 10, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 180, independent: 75, independent conditional: 2, independent unconditional: 74, dependent: 104, dependent conditional: 28, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 4767, independent: 3235, independent conditional: 0, independent unconditional: 3235, dependent: 1039, dependent conditional: 139, dependent unconditional: 900, unknown: 493, unknown conditional: 11, unknown unconditional: 482] , Statistics on independence cache: Total cache size (in pairs): 493, Positive cache size: 460, Positive conditional cache size: 1, Positive unconditional cache size: 459, Negative cache size: 33, Negative conditional cache size: 10, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 725, Maximal queried relation: 8, Independence queries for same thread: 830 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 229, Number of trivial persistent sets: 193, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 671, independent: 651, independent conditional: 0, independent unconditional: 651, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4722, independent: 3695, independent conditional: 3044, independent unconditional: 651, dependent: 1027, dependent conditional: 1007, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3892, independent: 3695, independent conditional: 3044, independent unconditional: 651, dependent: 197, dependent conditional: 177, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3892, independent: 3695, independent conditional: 3044, independent unconditional: 651, dependent: 197, dependent conditional: 177, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4767, independent: 3695, independent conditional: 1, independent unconditional: 3694, dependent: 1072, dependent conditional: 874, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4767, independent: 3695, independent conditional: 1, independent unconditional: 3694, dependent: 1072, dependent conditional: 149, dependent unconditional: 923, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4767, independent: 3695, independent conditional: 1, independent unconditional: 3694, dependent: 1072, dependent conditional: 149, dependent unconditional: 923, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 493, independent: 460, independent conditional: 1, independent unconditional: 459, dependent: 33, dependent conditional: 10, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 493, independent: 441, independent conditional: 0, independent unconditional: 441, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 52, independent: 19, independent conditional: 1, independent unconditional: 18, dependent: 33, dependent conditional: 10, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 19, independent conditional: 1, independent unconditional: 18, dependent: 33, dependent conditional: 10, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 180, independent: 75, independent conditional: 2, independent unconditional: 74, dependent: 104, dependent conditional: 28, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 4767, independent: 3235, independent conditional: 0, independent unconditional: 3235, dependent: 1039, dependent conditional: 139, dependent unconditional: 900, unknown: 493, unknown conditional: 11, unknown unconditional: 482] , Statistics on independence cache: Total cache size (in pairs): 493, Positive cache size: 460, Positive conditional cache size: 1, Positive unconditional cache size: 459, Negative cache size: 33, Negative conditional cache size: 10, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 725, Maximal queried relation: 8, Independence queries for same thread: 830 - PositiveResult [Line: 919]: 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, 55 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 1.7s, 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: 43, 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, 0.5s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 848 NumberOfCodeBlocks, 844 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 960 ConstructedInterpolants, 0 QuantifiedInterpolants, 3229 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1770 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 978/1421 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! [2024-07-20 20:09:51,947 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 [2024-07-20 20:09:52,149 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