/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-20 04:14:26,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-20 04:14:26,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-20 04:14:26,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-05-20 04:14:26,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-20 04:14:26,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-20 04:14:26,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-20 04:14:26,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-20 04:14:26,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-20 04:14:26,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-20 04:14:26,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-20 04:14:26,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-20 04:14:26,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-20 04:14:26,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-20 04:14:26,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-20 04:14:26,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-20 04:14:26,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-20 04:14:26,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-20 04:14:26,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-20 04:14:26,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-20 04:14:26,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-20 04:14:26,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-05-20 04:14:26,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-20 04:14:26,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-20 04:14:26,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-20 04:14:26,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-20 04:14:26,219 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-20 04:14:26,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-20 04:14:26,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-20 04:14:26,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-20 04:14:26,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-20 04:14:26,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-20 04:14:26,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-20 04:14:26,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-20 04:14:26,221 INFO L138 SettingsManager]: * Use SBE=true [2023-05-20 04:14:26,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-20 04:14:26,222 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-20 04:14:26,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-20 04:14:26,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-20 04:14:26,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-20 04:14:26,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-20 04:14:26,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-20 04:14:26,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-20 04:14:26,223 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-20 04:14:26,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-20 04:14:26,223 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-20 04:14:26,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-20 04:14:26,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-20 04:14:26,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-20 04:14:26,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-20 04:14:26,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-20 04:14:26,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-20 04:14:26,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-20 04:14:26,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-20 04:14:26,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-20 04:14:26,224 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-20 04:14:26,224 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-20 04:14:26,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-20 04:14:26,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-20 04:14:26,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-20 04:14:26,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-20 04:14:26,225 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-20 04:14:26,225 INFO L138 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-20 04:14:26,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-20 04:14:26,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-20 04:14:26,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-20 04:14:26,500 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-20 04:14:26,501 INFO L275 PluginConnector]: CDTParser initialized [2023-05-20 04:14:26,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-05-20 04:14:26,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79b56be5/7ef017cf822a44b4bb1281910becaec9/FLAG630f213e5 [2023-05-20 04:14:27,101 INFO L306 CDTParser]: Found 1 translation units. [2023-05-20 04:14:27,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-05-20 04:14:27,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79b56be5/7ef017cf822a44b4bb1281910becaec9/FLAG630f213e5 [2023-05-20 04:14:27,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79b56be5/7ef017cf822a44b4bb1281910becaec9 [2023-05-20 04:14:27,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-20 04:14:27,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-20 04:14:27,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-20 04:14:27,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-20 04:14:27,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-20 04:14:27,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.05 04:14:27" (1/1) ... [2023-05-20 04:14:27,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4beeef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:27, skipping insertion in model container [2023-05-20 04:14:27,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.05 04:14:27" (1/1) ... [2023-05-20 04:14:27,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-20 04:14:27,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-20 04:14:28,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2023-05-20 04:14:28,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-20 04:14:28,200 INFO L203 MainTranslator]: Completed pre-run [2023-05-20 04:14:28,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2023-05-20 04:14:28,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-20 04:14:28,368 INFO L208 MainTranslator]: Completed translation [2023-05-20 04:14:28,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28 WrapperNode [2023-05-20 04:14:28,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-20 04:14:28,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-20 04:14:28,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-20 04:14:28,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-20 04:14:28,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,445 INFO L138 Inliner]: procedures = 481, calls = 74, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 283 [2023-05-20 04:14:28,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-20 04:14:28,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-20 04:14:28,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-20 04:14:28,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-20 04:14:28,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-20 04:14:28,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-20 04:14:28,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-20 04:14:28,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-20 04:14:28,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (1/1) ... [2023-05-20 04:14:28,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-20 04:14:28,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:14:28,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-20 04:14:28,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-20 04:14:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-20 04:14:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-20 04:14:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-20 04:14:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-20 04:14:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-20 04:14:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-05-20 04:14:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-05-20 04:14:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-20 04:14:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-20 04:14:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-20 04:14:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-20 04:14:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-20 04:14:28,596 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-20 04:14:28,876 INFO L235 CfgBuilder]: Building ICFG [2023-05-20 04:14:28,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-20 04:14:29,222 INFO L276 CfgBuilder]: Performing block encoding [2023-05-20 04:14:29,279 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-20 04:14:29,279 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2023-05-20 04:14:29,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.05 04:14:29 BoogieIcfgContainer [2023-05-20 04:14:29,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-20 04:14:29,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-20 04:14:29,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-20 04:14:29,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-20 04:14:29,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.05 04:14:27" (1/3) ... [2023-05-20 04:14:29,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c461f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.05 04:14:29, skipping insertion in model container [2023-05-20 04:14:29,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:14:28" (2/3) ... [2023-05-20 04:14:29,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c461f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.05 04:14:29, skipping insertion in model container [2023-05-20 04:14:29,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.05 04:14:29" (3/3) ... [2023-05-20 04:14:29,292 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2023-05-20 04:14:29,298 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-20 04:14:29,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-20 04:14:29,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-20 04:14:29,305 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-20 04:14:29,410 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-05-20 04:14:29,458 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 04:14:29,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-20 04:14:29,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:14:29,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-20 04:14:29,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-20 04:14:29,498 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-20 04:14:29,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2023-05-20 04:14:29,520 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=LoopsAndPotentialCycles, 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;@73618f9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 04:14:29,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-20 04:14:29,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 04:14:29,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:29,731 INFO L85 PathProgramCache]: Analyzing trace with hash -124648518, now seen corresponding path program 1 times [2023-05-20 04:14:29,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:29,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177964283] [2023-05-20 04:14:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:29,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 04:14:30,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:30,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177964283] [2023-05-20 04:14:30,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177964283] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:14:30,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 04:14:30,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-20 04:14:30,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565280434] [2023-05-20 04:14:30,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:14:30,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-20 04:14:30,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:30,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-20 04:14:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-20 04:14:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:30,421 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:30,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:30,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:30,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-20 04:14:30,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 04:14:30,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:30,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1249630915, now seen corresponding path program 1 times [2023-05-20 04:14:30,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:30,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139039486] [2023-05-20 04:14:30,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:30,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:30,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 04:14:30,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:30,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139039486] [2023-05-20 04:14:30,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139039486] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:14:30,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 04:14:30,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-20 04:14:30,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061193691] [2023-05-20 04:14:30,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:14:30,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-20 04:14:30,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:30,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-20 04:14:30,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-20 04:14:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:30,859 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:30,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:30,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:30,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:31,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:31,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-20 04:14:31,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 04:14:31,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:31,860 INFO L85 PathProgramCache]: Analyzing trace with hash -763861908, now seen corresponding path program 1 times [2023-05-20 04:14:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:31,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090856177] [2023-05-20 04:14:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:31,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-20 04:14:32,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:32,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090856177] [2023-05-20 04:14:32,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090856177] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 04:14:32,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470472869] [2023-05-20 04:14:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:32,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:14:32,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:14:32,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 04:14:32,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-20 04:14:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:32,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-20 04:14:32,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 04:14:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-20 04:14:32,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 04:14:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-20 04:14:32,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470472869] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 04:14:32,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 04:14:32,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-05-20 04:14:32,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869867406] [2023-05-20 04:14:32,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 04:14:32,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-05-20 04:14:32,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:32,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-05-20 04:14:32,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-05-20 04:14:32,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:32,649 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:32,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.533333333333333) internal successors, (158), 15 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:32,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:32,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:32,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:32,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-20 04:14:33,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-05-20 04:14:33,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 04:14:33,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:33,002 INFO L85 PathProgramCache]: Analyzing trace with hash 213833336, now seen corresponding path program 2 times [2023-05-20 04:14:33,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:33,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891789973] [2023-05-20 04:14:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:33,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:33,649 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-20 04:14:33,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:33,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891789973] [2023-05-20 04:14:33,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891789973] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:14:33,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 04:14:33,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-20 04:14:33,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012262560] [2023-05-20 04:14:33,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:14:33,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-20 04:14:33,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:33,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-20 04:14:33,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-05-20 04:14:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:33,654 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:33,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:33,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:33,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:33,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:33,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-20 04:14:34,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-20 04:14:34,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-20 04:14:34,063 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-05-20 04:14:34,064 INFO L307 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was SAFE (1/2) [2023-05-20 04:14:34,070 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 04:14:34,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-20 04:14:34,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:14:34,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-20 04:14:34,081 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-20 04:14:34,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-20 04:14:34,083 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=LoopsAndPotentialCycles, 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;@73618f9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 04:14:34,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-20 04:14:34,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2023-05-20 04:14:34,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:14:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1477077324, now seen corresponding path program 1 times [2023-05-20 04:14:34,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:34,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057338290] [2023-05-20 04:14:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:34,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 04:14:34,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:34,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057338290] [2023-05-20 04:14:34,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057338290] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:14:34,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 04:14:34,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-20 04:14:34,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455961714] [2023-05-20 04:14:34,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:14:34,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-20 04:14:34,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:34,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-20 04:14:34,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-20 04:14:34,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:34,246 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:34,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:34,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:34,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:34,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-20 04:14:34,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:14:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:34,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1881163711, now seen corresponding path program 1 times [2023-05-20 04:14:34,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:34,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506937243] [2023-05-20 04:14:34,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:34,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 04:14:34,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:34,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506937243] [2023-05-20 04:14:34,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506937243] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 04:14:34,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81916399] [2023-05-20 04:14:34,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:34,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:14:34,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:14:34,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 04:14:34,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-20 04:14:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:34,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-20 04:14:34,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 04:14:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 04:14:34,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 04:14:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 04:14:34,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81916399] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 04:14:34,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 04:14:34,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-05-20 04:14:34,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701690054] [2023-05-20 04:14:34,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 04:14:34,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-05-20 04:14:34,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:34,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-05-20 04:14:34,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-05-20 04:14:34,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:34,778 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:34,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:34,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:34,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:34,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:34,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:34,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-20 04:14:35,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:14:35,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:14:35,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1730314827, now seen corresponding path program 2 times [2023-05-20 04:14:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:35,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729783209] [2023-05-20 04:14:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:35,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-20 04:14:35,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:35,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729783209] [2023-05-20 04:14:35,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729783209] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:14:35,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 04:14:35,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-20 04:14:35,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281049028] [2023-05-20 04:14:35,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:14:35,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-20 04:14:35,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:35,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-20 04:14:35,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-20 04:14:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:35,231 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:35,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:35,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:35,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:35,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:35,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:35,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:35,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:14:35,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-05-20 04:14:35,283 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:14:35,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:35,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1622655294, now seen corresponding path program 1 times [2023-05-20 04:14:35,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:35,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385044971] [2023-05-20 04:14:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:35,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-20 04:14:35,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:35,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385044971] [2023-05-20 04:14:35,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385044971] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:14:35,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 04:14:35,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-20 04:14:35,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356536936] [2023-05-20 04:14:35,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:14:35,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-20 04:14:35,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:35,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-20 04:14:35,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-20 04:14:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:35,461 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:35,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:35,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:35,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:35,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:14:35,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:35,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:14:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:14:35,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-20 04:14:35,643 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:14:35,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 109796640, now seen corresponding path program 1 times [2023-05-20 04:14:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:35,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874348728] [2023-05-20 04:14:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-20 04:14:35,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:35,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874348728] [2023-05-20 04:14:35,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874348728] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:14:35,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 04:14:35,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-20 04:14:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170109496] [2023-05-20 04:14:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:14:35,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-20 04:14:35,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:14:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-20 04:14:35,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-20 04:14:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:35,798 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:14:35,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:14:35,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:35,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:35,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:14:35,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:14:35,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:14:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:14:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:14:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:14:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:14:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 04:14:35,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-20 04:14:35,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:14:35,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:14:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash 980909972, now seen corresponding path program 1 times [2023-05-20 04:14:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:14:35,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004895886] [2023-05-20 04:14:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:35,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:14:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 04:14:38,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:14:38,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004895886] [2023-05-20 04:14:38,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004895886] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 04:14:38,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550566500] [2023-05-20 04:14:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:14:38,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:14:38,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:14:38,371 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 04:14:38,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-20 04:14:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:14:38,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 81 conjunts are in the unsatisfiable core [2023-05-20 04:14:38,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 04:14:38,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-05-20 04:14:39,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-05-20 04:14:39,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:14:39,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-05-20 04:14:39,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-05-20 04:14:39,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:14:39,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-05-20 04:14:39,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:14:39,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-05-20 04:14:40,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-05-20 04:14:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 04:14:40,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 04:14:40,458 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_196 (Array Int Int))) (< 1 (select (select (store |c_#memory_int| |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28)))) is different from false [2023-05-20 04:14:40,790 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_195 Int) (v_ArrVal_196 (Array Int Int)) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_29| Int)) (or (< (+ (* |c_ULTIMATE.start_Init_~pushCount#1| 8) |c_~#stack~0.offset|) (+ |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| 4)) (< 1 (select (select (store (store |c_#memory_int| |c_~#stack~0.base| (store (select |c_#memory_int| |c_~#stack~0.base|) |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| v_ArrVal_195)) |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28))))) is different from false [2023-05-20 04:14:40,868 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_195 Int) (v_ArrVal_196 (Array Int Int)) (v_ArrVal_192 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_29| Int)) (or (< (+ (* |c_ULTIMATE.start_Init_~pushCount#1| 8) |c_~#stack~0.offset|) (+ |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| 4)) (< 1 (select (select (store (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_atomic_store_~obj#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_atomic_store_~obj#1.base|) |c_ULTIMATE.start_atomic_store_~obj#1.offset| v_ArrVal_192)))) (store .cse0 |c_~#stack~0.base| (store (select .cse0 |c_~#stack~0.base|) |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| v_ArrVal_195))) |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28))))) is different from false [2023-05-20 04:14:40,894 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_195 Int) (v_ArrVal_196 (Array Int Int)) (v_ArrVal_192 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_29| Int)) (or (< 1 (select (select (store (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_atomic_store_#in~obj#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_atomic_store_#in~obj#1.base|) |c_ULTIMATE.start_atomic_store_#in~obj#1.offset| v_ArrVal_192)))) (store .cse0 |c_~#stack~0.base| (store (select .cse0 |c_~#stack~0.base|) |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| v_ArrVal_195))) |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28))) (< (+ (* |c_ULTIMATE.start_Init_~pushCount#1| 8) |c_~#stack~0.offset|) (+ |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| 4)))) is different from false [2023-05-20 04:14:47,137 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_195 Int) (v_ArrVal_196 (Array Int Int)) (v_ArrVal_192 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_29| Int)) (or (< (+ (* |c_ULTIMATE.start_Init_~pushCount#1| 8) |c_~#stack~0.offset|) (+ |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| 4)) (< 1 (select (select (store (store |c_#memory_int| |c_~#stack~0.base| (store (store (select |c_#memory_int| |c_~#stack~0.base|) (+ 12 |c_~#stack~0.offset| (* 8 |c_ULTIMATE.start_Init_#t~post40#1|)) v_ArrVal_192) |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| v_ArrVal_195)) |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28))))) is different from false [2023-05-20 04:15:21,005 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_atomic_store_~obj#1.offset_33| Int) (v_ArrVal_195 Int) (v_ArrVal_196 (Array Int Int)) (v_ArrVal_192 Int) (v_ArrVal_190 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_29| Int)) (or (< 1 (select (select (store (store |c_#memory_int| |c_~#stack~0.base| (store (store (store (select |c_#memory_int| |c_~#stack~0.base|) |v_ULTIMATE.start_atomic_store_~obj#1.offset_33| v_ArrVal_190) (+ 12 |c_~#stack~0.offset|) v_ArrVal_192) |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| v_ArrVal_195)) |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28))) (< (+ (* |c_ULTIMATE.start_Init_~pushCount#1| 8) |c_~#stack~0.offset|) (+ |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| 4)) (< (+ |c_~#stack~0.offset| 4) |v_ULTIMATE.start_atomic_store_~obj#1.offset_33|))) is different from false [2023-05-20 04:15:21,042 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_188 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_33| Int) (v_ArrVal_195 Int) (v_ArrVal_196 (Array Int Int)) (v_ArrVal_192 Int) (v_ArrVal_190 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_29| Int)) (or (< (+ (* |c_ULTIMATE.start_Init_~pushCount#1| 8) |c_~#stack~0.offset|) (+ |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| 4)) (< 1 (select (select (store (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_atomic_store_~obj#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_atomic_store_~obj#1.base|) |c_ULTIMATE.start_atomic_store_~obj#1.offset| v_ArrVal_188)))) (store .cse0 |c_~#stack~0.base| (store (store (store (select .cse0 |c_~#stack~0.base|) |v_ULTIMATE.start_atomic_store_~obj#1.offset_33| v_ArrVal_190) (+ 12 |c_~#stack~0.offset|) v_ArrVal_192) |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| v_ArrVal_195))) |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28))) (< (+ |c_~#stack~0.offset| 4) |v_ULTIMATE.start_atomic_store_~obj#1.offset_33|))) is different from false [2023-05-20 04:15:21,089 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_188 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_33| Int) (v_ArrVal_195 Int) (v_ArrVal_196 (Array Int Int)) (v_ArrVal_192 Int) (v_ArrVal_190 Int) (|v_ULTIMATE.start_atomic_store_~obj#1.offset_29| Int)) (or (< (+ (* |c_ULTIMATE.start_Init_~pushCount#1| 8) |c_~#stack~0.offset|) (+ |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| 4)) (< 1 (select (select (store (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_atomic_store_#in~obj#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_atomic_store_#in~obj#1.base|) |c_ULTIMATE.start_atomic_store_#in~obj#1.offset| v_ArrVal_188)))) (store .cse0 |c_~#stack~0.base| (store (store (store (select .cse0 |c_~#stack~0.base|) |v_ULTIMATE.start_atomic_store_~obj#1.offset_33| v_ArrVal_190) (+ 12 |c_~#stack~0.offset|) v_ArrVal_192) |v_ULTIMATE.start_atomic_store_~obj#1.offset_29| v_ArrVal_195))) |c_~#threads~0.base| v_ArrVal_196) |c_~#stack~0.base|) (+ |c_~#stack~0.offset| 28))) (< (+ |c_~#stack~0.offset| 4) |v_ULTIMATE.start_atomic_store_~obj#1.offset_33|))) is different from false [2023-05-20 04:15:29,752 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-20 04:15:29,753 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-20 04:15:29,872 INFO L356 Elim1Store]: treesize reduction 166, result has 38.7 percent of original size [2023-05-20 04:15:29,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 117 [2023-05-20 04:15:29,890 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-20 04:15:29,890 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-20 04:15:29,891 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-20 04:15:29,926 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-20 04:15:29,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 122 treesize of output 146 [2023-05-20 04:15:29,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-05-20 04:15:30,550 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 10 not checked. [2023-05-20 04:15:30,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550566500] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 04:15:30,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 04:15:30,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28, 31] total 80 [2023-05-20 04:15:30,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865534302] [2023-05-20 04:15:30,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 04:15:30,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2023-05-20 04:15:30,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:15:30,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2023-05-20 04:15:30,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=4564, Unknown=47, NotChecked=1176, Total=6320 [2023-05-20 04:15:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:15:30,558 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:15:30,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.975) internal successors, (318), 80 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:15:30,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:15:30,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:15:30,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:15:30,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:15:30,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 04:15:30,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:15:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:15:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:15:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:15:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:15:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 04:15:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-20 04:15:36,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-20 04:15:36,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-05-20 04:15:36,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:15:36,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:15:36,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1088569364, now seen corresponding path program 2 times [2023-05-20 04:15:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:15:36,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074412049] [2023-05-20 04:15:36,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:15:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:15:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:15:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 49 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-05-20 04:15:37,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:15:37,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074412049] [2023-05-20 04:15:37,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074412049] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 04:15:37,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308807216] [2023-05-20 04:15:37,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-20 04:15:37,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:15:37,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:15:37,382 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 04:15:37,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-20 04:15:37,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-20 04:15:37,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-20 04:15:37,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-20 04:15:37,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 04:15:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-05-20 04:15:37,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-20 04:15:37,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308807216] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 04:15:37,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-20 04:15:37,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-05-20 04:15:37,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320787018] [2023-05-20 04:15:37,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 04:15:37,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-20 04:15:37,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:15:37,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-20 04:15:37,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-05-20 04:15:37,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:15:37,809 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:15:37,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:15:37,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:15:37,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:15:37,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:15:37,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:15:37,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 04:15:37,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-05-20 04:15:37,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:15:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:15:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:15:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:15:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:15:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 04:15:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-20 04:15:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-20 04:15:40,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-05-20 04:15:41,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:15:41,031 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:15:41,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:15:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1342532201, now seen corresponding path program 1 times [2023-05-20 04:15:41,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:15:41,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187280760] [2023-05-20 04:15:41,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:15:41,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:15:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:15:41,545 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-20 04:15:41,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:15:41,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187280760] [2023-05-20 04:15:41,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187280760] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 04:15:41,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952497149] [2023-05-20 04:15:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:15:41,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:15:41,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:15:41,550 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 04:15:41,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-20 04:15:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:15:41,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 7 conjunts are in the unsatisfiable core [2023-05-20 04:15:41,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 04:15:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-20 04:15:42,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 04:15:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-20 04:15:42,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952497149] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 04:15:42,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 04:15:42,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-05-20 04:15:42,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315720096] [2023-05-20 04:15:42,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 04:15:42,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-20 04:15:42,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 04:15:42,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-20 04:15:42,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-05-20 04:15:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:15:42,462 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 04:15:42,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-20 04:15:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 04:15:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 04:15:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-20 04:15:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 04:15:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-20 04:15:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 04:15:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-20 04:15:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-20 04:15:42,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-20 04:15:42,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-20 04:15:42,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:15:42,756 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 04:15:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 04:15:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash -847655818, now seen corresponding path program 1 times [2023-05-20 04:15:42,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 04:15:42,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058634849] [2023-05-20 04:15:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:15:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 04:15:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:15:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 46 proven. 31 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 04:15:52,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 04:15:52,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058634849] [2023-05-20 04:15:52,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058634849] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 04:15:52,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554249081] [2023-05-20 04:15:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 04:15:52,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 04:15:52,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 04:15:52,219 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 04:15:52,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-20 04:15:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 04:15:52,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 204 conjunts are in the unsatisfiable core [2023-05-20 04:15:52,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 04:15:53,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-05-20 04:15:54,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-05-20 04:15:54,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:15:54,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:15:54,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-05-20 04:15:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:15:55,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:15:55,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-05-20 04:15:55,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:15:56,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:15:56,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-05-20 04:15:56,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:15:56,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2023-05-20 04:15:58,014 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2023-05-20 04:15:58,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 35 [2023-05-20 04:15:58,171 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-20 04:15:58,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-05-20 04:15:58,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 91 [2023-05-20 04:15:58,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2023-05-20 04:15:58,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-05-20 04:16:07,352 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-20 04:16:16,154 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-20 04:16:24,704 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-20 04:16:33,261 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-20 04:16:33,313 INFO L356 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2023-05-20 04:16:33,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 188 [2023-05-20 04:16:33,368 INFO L356 Elim1Store]: treesize reduction 28, result has 62.7 percent of original size [2023-05-20 04:16:33,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 151 treesize of output 186 [2023-05-20 04:16:33,425 INFO L356 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2023-05-20 04:16:33,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 136 treesize of output 171 [2023-05-20 04:16:33,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2023-05-20 04:16:33,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2023-05-20 04:16:34,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-05-20 04:16:34,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-05-20 04:16:36,014 INFO L356 Elim1Store]: treesize reduction 92, result has 29.2 percent of original size [2023-05-20 04:16:36,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 74 [2023-05-20 04:16:40,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:16:40,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:16:40,875 INFO L356 Elim1Store]: treesize reduction 112, result has 32.1 percent of original size [2023-05-20 04:16:40,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 96 treesize of output 98 [2023-05-20 04:16:47,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:16:47,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:16:47,736 INFO L356 Elim1Store]: treesize reduction 304, result has 30.3 percent of original size [2023-05-20 04:16:47,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 174 treesize of output 231 [2023-05-20 04:16:55,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-20 04:16:56,343 INFO L356 Elim1Store]: treesize reduction 752, result has 22.4 percent of original size [2023-05-20 04:16:56,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 74 case distinctions, treesize of input 201 treesize of output 338 [2023-05-20 04:21:30,003 WARN L233 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 1350 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-05-20 04:28:09,528 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-20 04:28:09,528 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-20 04:28:09,528 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-20 04:28:09,528 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-20 04:28:09,739 WARN L249 SmtUtils]: Removed 346 from assertion stack [2023-05-20 04:28:09,740 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-20 04:28:09,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-05-20 04:28:09,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-05-20 04:28:09,941 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 293 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1367 for 281403ms.. [2023-05-20 04:28:09,944 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-05-20 04:28:09,944 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was TIMEOUT (2/2) [2023-05-20 04:28:09,946 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-20 04:28:09,946 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-20 04:28:09,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.05 04:28:09 BasicIcfg [2023-05-20 04:28:09,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-20 04:28:09,948 INFO L158 Benchmark]: Toolchain (without parser) took 822366.98ms. Allocated memory was 266.3MB in the beginning and 759.2MB in the end (delta: 492.8MB). Free memory was 235.2MB in the beginning and 523.5MB in the end (delta: -288.3MB). Peak memory consumption was 509.9MB. Max. memory is 8.0GB. [2023-05-20 04:28:09,948 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-20 04:28:09,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 785.59ms. Allocated memory is still 266.3MB. Free memory was 235.2MB in the beginning and 189.2MB in the end (delta: 46.0MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2023-05-20 04:28:09,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.73ms. Allocated memory is still 266.3MB. Free memory was 189.2MB in the beginning and 185.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-05-20 04:28:09,951 INFO L158 Benchmark]: Boogie Preprocessor took 68.57ms. Allocated memory is still 266.3MB. Free memory was 185.0MB in the beginning and 181.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-20 04:28:09,951 INFO L158 Benchmark]: RCFGBuilder took 764.17ms. Allocated memory is still 266.3MB. Free memory was 181.9MB in the beginning and 209.5MB in the end (delta: -27.6MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. [2023-05-20 04:28:09,951 INFO L158 Benchmark]: TraceAbstraction took 820663.92ms. Allocated memory was 266.3MB in the beginning and 759.2MB in the end (delta: 492.8MB). Free memory was 208.5MB in the beginning and 523.5MB in the end (delta: -315.1MB). Peak memory consumption was 483.5MB. Max. memory is 8.0GB. [2023-05-20 04:28:09,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 785.59ms. Allocated memory is still 266.3MB. Free memory was 235.2MB in the beginning and 189.2MB in the end (delta: 46.0MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.73ms. Allocated memory is still 266.3MB. Free memory was 189.2MB in the beginning and 185.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.57ms. Allocated memory is still 266.3MB. Free memory was 185.0MB in the beginning and 181.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 764.17ms. Allocated memory is still 266.3MB. Free memory was 181.9MB in the beginning and 209.5MB in the end (delta: -27.6MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. * TraceAbstraction took 820663.92ms. Allocated memory was 266.3MB in the beginning and 759.2MB in the end (delta: 492.8MB). Free memory was 208.5MB in the beginning and 523.5MB in the end (delta: -315.1MB). Peak memory consumption was 483.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18585, independent: 16434, independent conditional: 2055, independent unconditional: 14379, dependent: 2151, dependent conditional: 1981, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16653, independent: 16434, independent conditional: 2055, independent unconditional: 14379, dependent: 219, dependent conditional: 49, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 16653, independent: 16434, independent conditional: 2055, independent unconditional: 14379, dependent: 219, dependent conditional: 49, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16781, independent: 16434, independent conditional: 3, independent unconditional: 16431, dependent: 347, dependent conditional: 125, dependent unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16781, independent: 16434, independent conditional: 3, independent unconditional: 16431, dependent: 347, dependent conditional: 40, dependent unconditional: 307, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16781, independent: 16434, independent conditional: 3, independent unconditional: 16431, dependent: 347, dependent conditional: 40, dependent unconditional: 307, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7843, independent: 7644, independent conditional: 3, independent unconditional: 7641, dependent: 199, dependent conditional: 29, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7843, independent: 7571, independent conditional: 0, independent unconditional: 7571, dependent: 272, dependent conditional: 0, dependent unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 272, independent: 73, independent conditional: 3, independent unconditional: 70, dependent: 199, dependent conditional: 29, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 272, independent: 73, independent conditional: 3, independent unconditional: 70, dependent: 199, dependent conditional: 29, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 840, independent: 264, independent conditional: 6, independent unconditional: 259, dependent: 576, dependent conditional: 75, dependent unconditional: 501, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 16781, independent: 8790, independent conditional: 0, independent unconditional: 8790, dependent: 148, dependent conditional: 11, dependent unconditional: 137, unknown: 7843, unknown conditional: 32, unknown unconditional: 7811] , Statistics on independence cache: Total cache size (in pairs): 7843, Positive cache size: 7644, Positive conditional cache size: 3, Positive unconditional cache size: 7641, Negative cache size: 199, Negative conditional cache size: 29, Negative unconditional cache size: 170, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 85, Maximal queried relation: 4, Independence queries for same thread: 1932 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.0s, Number of persistent set computation: 941, Number of trivial persistent sets: 634, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14549, independent: 14379, independent conditional: 0, independent unconditional: 14379, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18585, independent: 16434, independent conditional: 2055, independent unconditional: 14379, dependent: 2151, dependent conditional: 1981, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16653, independent: 16434, independent conditional: 2055, independent unconditional: 14379, dependent: 219, dependent conditional: 49, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 16653, independent: 16434, independent conditional: 2055, independent unconditional: 14379, dependent: 219, dependent conditional: 49, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16781, independent: 16434, independent conditional: 3, independent unconditional: 16431, dependent: 347, dependent conditional: 125, dependent unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16781, independent: 16434, independent conditional: 3, independent unconditional: 16431, dependent: 347, dependent conditional: 40, dependent unconditional: 307, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16781, independent: 16434, independent conditional: 3, independent unconditional: 16431, dependent: 347, dependent conditional: 40, dependent unconditional: 307, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7843, independent: 7644, independent conditional: 3, independent unconditional: 7641, dependent: 199, dependent conditional: 29, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7843, independent: 7571, independent conditional: 0, independent unconditional: 7571, dependent: 272, dependent conditional: 0, dependent unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 272, independent: 73, independent conditional: 3, independent unconditional: 70, dependent: 199, dependent conditional: 29, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 272, independent: 73, independent conditional: 3, independent unconditional: 70, dependent: 199, dependent conditional: 29, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 840, independent: 264, independent conditional: 6, independent unconditional: 259, dependent: 576, dependent conditional: 75, dependent unconditional: 501, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 16781, independent: 8790, independent conditional: 0, independent unconditional: 8790, dependent: 148, dependent conditional: 11, dependent unconditional: 137, unknown: 7843, unknown conditional: 32, unknown unconditional: 7811] , Statistics on independence cache: Total cache size (in pairs): 7843, Positive cache size: 7644, Positive conditional cache size: 3, Positive unconditional cache size: 7641, Negative cache size: 199, Negative conditional cache size: 29, Negative unconditional cache size: 170, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 85, Maximal queried relation: 4, Independence queries for same thread: 1932 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7483, independent: 6542, independent conditional: 720, independent unconditional: 5822, dependent: 941, dependent conditional: 909, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 720, independent unconditional: 5822, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 720, independent unconditional: 5822, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 0, independent unconditional: 6542, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 0, independent unconditional: 6542, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 0, independent unconditional: 6542, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5467, independent: 5435, independent conditional: 0, independent unconditional: 5435, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5467, independent: 5375, independent conditional: 0, independent unconditional: 5375, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 92, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 92, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 214, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6574, independent: 1107, independent conditional: 0, independent unconditional: 1107, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5467, unknown conditional: 0, unknown unconditional: 5467] , Statistics on independence cache: Total cache size (in pairs): 5467, Positive cache size: 5435, Positive conditional cache size: 0, Positive unconditional cache size: 5435, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 909 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 258, Number of trivial persistent sets: 258, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5854, independent: 5822, independent conditional: 0, independent unconditional: 5822, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7483, independent: 6542, independent conditional: 720, independent unconditional: 5822, dependent: 941, dependent conditional: 909, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 720, independent unconditional: 5822, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 720, independent unconditional: 5822, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 0, independent unconditional: 6542, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 0, independent unconditional: 6542, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6574, independent: 6542, independent conditional: 0, independent unconditional: 6542, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5467, independent: 5435, independent conditional: 0, independent unconditional: 5435, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5467, independent: 5375, independent conditional: 0, independent unconditional: 5375, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 92, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 92, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 214, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6574, independent: 1107, independent conditional: 0, independent unconditional: 1107, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5467, unknown conditional: 0, unknown unconditional: 5467] , Statistics on independence cache: Total cache size (in pairs): 5467, Positive cache size: 5435, Positive conditional cache size: 0, Positive unconditional cache size: 5435, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 909 - TimeoutResultAtElement [Line: 1913]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 293 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1367 for 281403ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: threadThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 442 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.9s, 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: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 661 ConstructedInterpolants, 0 QuantifiedInterpolants, 1473 SizeOfPredicates, 5 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 30/33 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 442 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 815.9s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 9.7s, 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: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 57.0s InterpolantComputationTime, 1809 NumberOfCodeBlocks, 1809 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2279 ConstructedInterpolants, 45 QuantifiedInterpolants, 9558 SizeOfPredicates, 52 NumberOfNonLiveVariables, 1422 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 378/444 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown