/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 ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 06:31:22,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 06:31:22,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 06:31:22,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 06:31:22,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 06:31:22,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 06:31:22,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 06:31:22,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 06:31:22,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 06:31:22,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 06:31:22,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 06:31:22,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 06:31:22,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 06:31:22,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 06:31:22,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 06:31:22,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 06:31:22,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 06:31:22,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 06:31:22,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 06:31:22,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 06:31:22,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 06:31:22,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 06:31:22,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 06:31:22,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 06:31:22,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 06:31:22,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 06:31:22,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 06:31:22,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 06:31:22,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 06:31:22,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 06:31:22,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 06:31:22,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 06:31:22,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 06:31:22,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 06:31:22,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 06:31:22,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 06:31:22,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 06:31:22,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 06:31:22,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 06:31:22,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 06:31:22,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 06:31:22,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 06:31:22,326 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 06:31:22,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 06:31:22,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 06:31:22,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 06:31:22,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 06:31:22,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 06:31:22,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 06:31:22,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 06:31:22,329 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 06:31:22,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 06:31:22,330 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 06:31:22,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 06:31:22,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 06:31:22,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 06:31:22,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 06:31:22,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 06:31:22,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 06:31:22,331 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 06:31:22,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 06:31:22,331 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 06:31:22,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 06:31:22,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 06:31:22,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 06:31:22,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 06:31:22,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 06:31:22,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 06:31:22,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 06:31:22,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 06:31:22,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 06:31:22,333 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 06:31:22,333 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 06:31:22,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 06:31:22,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 06:31:22,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 06:31:22,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 06:31:22,334 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 06:31:22,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-04 06:31:22,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 06:31:22,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 06:31:22,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 06:31:22,575 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 06:31:22,576 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 06:31:22,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2023-05-04 06:31:22,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380f8aa74/633f168784c04f33aced2ba6004ea71a/FLAG4f8cf7615 [2023-05-04 06:31:23,006 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 06:31:23,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2023-05-04 06:31:23,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380f8aa74/633f168784c04f33aced2ba6004ea71a/FLAG4f8cf7615 [2023-05-04 06:31:23,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380f8aa74/633f168784c04f33aced2ba6004ea71a [2023-05-04 06:31:23,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 06:31:23,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 06:31:23,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 06:31:23,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 06:31:23,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 06:31:23,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf78dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23, skipping insertion in model container [2023-05-04 06:31:23,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 06:31:23,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 06:31:23,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2023-05-04 06:31:23,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 06:31:23,238 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 06:31:23,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2023-05-04 06:31:23,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 06:31:23,276 INFO L208 MainTranslator]: Completed translation [2023-05-04 06:31:23,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23 WrapperNode [2023-05-04 06:31:23,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 06:31:23,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 06:31:23,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 06:31:23,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 06:31:23,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,310 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 174 [2023-05-04 06:31:23,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 06:31:23,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 06:31:23,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 06:31:23,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 06:31:23,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,343 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 06:31:23,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 06:31:23,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 06:31:23,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 06:31:23,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (1/1) ... [2023-05-04 06:31:23,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 06:31:23,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 06:31:23,374 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) [2023-05-04 06:31:23,375 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 [2023-05-04 06:31:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 06:31:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 06:31:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 06:31:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 06:31:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 06:31:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 06:31:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 06:31:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 06:31:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-04 06:31:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-04 06:31:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-05-04 06:31:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-05-04 06:31:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 06:31:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-05-04 06:31:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-05-04 06:31:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 06:31:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 06:31:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 06:31:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 06:31:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 06:31:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 06:31:23,405 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 06:31:23,495 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 06:31:23,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 06:31:23,808 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 06:31:23,926 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 06:31:23,926 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2023-05-04 06:31:23,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 06:31:23 BoogieIcfgContainer [2023-05-04 06:31:23,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 06:31:23,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 06:31:23,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 06:31:23,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 06:31:23,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 06:31:23" (1/3) ... [2023-05-04 06:31:23,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5b0cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 06:31:23, skipping insertion in model container [2023-05-04 06:31:23,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:31:23" (2/3) ... [2023-05-04 06:31:23,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5b0cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 06:31:23, skipping insertion in model container [2023-05-04 06:31:23,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 06:31:23" (3/3) ... [2023-05-04 06:31:23,946 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2023-05-04 06:31:23,954 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 06:31:23,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 06:31:23,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 06:31:23,960 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 06:31:24,047 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-05-04 06:31:24,096 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 06:31:24,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 06:31:24,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 06:31:24,102 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) [2023-05-04 06:31:24,124 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 [2023-05-04 06:31:24,142 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 06:31:24,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 06:31:24,173 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;@2d6b0caf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 06:31:24,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-05-04 06:31:24,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 06:31:24,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 06:31:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash 646878745, now seen corresponding path program 1 times [2023-05-04 06:31:24,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 06:31:24,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586840291] [2023-05-04 06:31:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:24,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 06:31:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:25,115 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 06:31:25,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 06:31:25,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586840291] [2023-05-04 06:31:25,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586840291] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 06:31:25,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 06:31:25,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 06:31:25,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113709129] [2023-05-04 06:31:25,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 06:31:25,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 06:31:25,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 06:31:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 06:31:25,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 06:31:25,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:25,158 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 06:31:25,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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) [2023-05-04 06:31:25,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:25,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:25,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 06:31:25,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 06:31:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 06:31:25,217 INFO L85 PathProgramCache]: Analyzing trace with hash -767212817, now seen corresponding path program 1 times [2023-05-04 06:31:25,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 06:31:25,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011615456] [2023-05-04 06:31:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:25,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 06:31:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-05-04 06:31:25,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 06:31:25,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011615456] [2023-05-04 06:31:25,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011615456] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 06:31:25,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 06:31:25,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 06:31:25,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142398253] [2023-05-04 06:31:25,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 06:31:25,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 06:31:25,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 06:31:25,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 06:31:25,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-05-04 06:31:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:25,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 06:31:25,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2023-05-04 06:31:25,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:25,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:25,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 06:31:25,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 06:31:25,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 06:31:25,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2004385259, now seen corresponding path program 1 times [2023-05-04 06:31:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 06:31:25,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512884494] [2023-05-04 06:31:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 06:31:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-05-04 06:31:26,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 06:31:26,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512884494] [2023-05-04 06:31:26,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512884494] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 06:31:26,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52251525] [2023-05-04 06:31:26,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:26,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:26,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 06:31:26,065 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) [2023-05-04 06:31:26,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 06:31:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:26,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 06:31:26,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 06:31:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-05-04 06:31:26,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 06:31:26,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52251525] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 06:31:26,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 06:31:26,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-05-04 06:31:26,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022035854] [2023-05-04 06:31:26,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 06:31:26,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 06:31:26,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 06:31:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 06:31:26,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-05-04 06:31:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:26,381 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 06:31:26,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 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) [2023-05-04 06:31:26,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:26,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:26,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:26,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 06:31:26,732 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 [2023-05-04 06:31:26,733 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 06:31:26,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 06:31:26,733 INFO L85 PathProgramCache]: Analyzing trace with hash -597195019, now seen corresponding path program 1 times [2023-05-04 06:31:26,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 06:31:26,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986713032] [2023-05-04 06:31:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:26,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 06:31:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-05-04 06:31:26,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 06:31:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986713032] [2023-05-04 06:31:26,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986713032] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 06:31:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585124002] [2023-05-04 06:31:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:26,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 06:31:26,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 06:31:26,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 06:31:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:27,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 06:31:27,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 06:31:27,290 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-05-04 06:31:27,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 06:31:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-05-04 06:31:27,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585124002] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 06:31:27,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 06:31:27,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 23 [2023-05-04 06:31:27,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368775883] [2023-05-04 06:31:27,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 06:31:27,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-05-04 06:31:27,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 06:31:27,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-05-04 06:31:27,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2023-05-04 06:31:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:27,559 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 06:31:27,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.0) internal successors, (276), 23 states have internal predecessors, (276), 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) [2023-05-04 06:31:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:27,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:27,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:28,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:28,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:28,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 06:31:28,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:28,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 06:31:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 06:31:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash 698116405, now seen corresponding path program 1 times [2023-05-04 06:31:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 06:31:28,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547168856] [2023-05-04 06:31:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:28,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 06:31:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-04 06:31:28,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 06:31:28,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547168856] [2023-05-04 06:31:28,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547168856] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 06:31:28,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234490944] [2023-05-04 06:31:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:28,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:28,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 06:31:28,465 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) [2023-05-04 06:31:28,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 06:31:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:28,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 06:31:28,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 06:31:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 06:31:28,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 06:31:29,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 06:31:29,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234490944] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 06:31:29,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 06:31:29,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 23 [2023-05-04 06:31:29,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775839430] [2023-05-04 06:31:29,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 06:31:29,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-05-04 06:31:29,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 06:31:29,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-05-04 06:31:29,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2023-05-04 06:31:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:29,027 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 06:31:29,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.130434782608695) internal successors, (302), 23 states have internal predecessors, (302), 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) [2023-05-04 06:31:29,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:29,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:29,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:29,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:29,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:29,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-04 06:31:29,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:29,768 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 06:31:29,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 06:31:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash 569318321, now seen corresponding path program 1 times [2023-05-04 06:31:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 06:31:29,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816145075] [2023-05-04 06:31:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 06:31:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 06:31:30,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 06:31:30,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816145075] [2023-05-04 06:31:30,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816145075] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 06:31:30,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458691847] [2023-05-04 06:31:30,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:30,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:30,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 06:31:30,069 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) [2023-05-04 06:31:30,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 06:31:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:30,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 06:31:30,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 06:31:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 06:31:30,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 06:31:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 06:31:30,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458691847] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 06:31:30,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 06:31:30,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-05-04 06:31:30,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539139243] [2023-05-04 06:31:30,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 06:31:30,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-05-04 06:31:30,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 06:31:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-05-04 06:31:30,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2023-05-04 06:31:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:30,795 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 06:31:30,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 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) [2023-05-04 06:31:30,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:30,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:30,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:30,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:30,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:30,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:31,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 06:31:31,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 06:31:31,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:31,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 06:31:31,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 06:31:31,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1510006501, now seen corresponding path program 2 times [2023-05-04 06:31:31,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 06:31:31,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156597855] [2023-05-04 06:31:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 06:31:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 06:31:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 06:31:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-05-04 06:31:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 06:31:33,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156597855] [2023-05-04 06:31:33,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156597855] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 06:31:33,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522102463] [2023-05-04 06:31:33,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 06:31:33,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 06:31:33,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 06:31:33,616 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) [2023-05-04 06:31:33,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 06:31:33,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 06:31:33,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 06:31:33,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 31 conjunts are in the unsatisfiable core [2023-05-04 06:31:33,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 06:31:34,209 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 31 treesize of output 15 [2023-05-04 06:31:34,350 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 06:31:34,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 06:31:34,750 INFO L356 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2023-05-04 06:31:34,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 77 treesize of output 44 [2023-05-04 06:31:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 06:31:34,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522102463] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 06:31:34,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 06:31:34,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 13] total 37 [2023-05-04 06:31:34,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440172753] [2023-05-04 06:31:34,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 06:31:34,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-05-04 06:31:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 06:31:34,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-05-04 06:31:34,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1234, Unknown=0, NotChecked=0, Total=1332 [2023-05-04 06:31:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:34,891 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 06:31:34,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.864864864864865) internal successors, (402), 37 states have internal predecessors, (402), 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) [2023-05-04 06:31:34,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 06:31:34,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 06:31:34,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 06:31:34,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 06:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 06:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.