/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 X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/unroll-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 21:46:43,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 21:46:43,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 21:46:43,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-05-04 21:46:43,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 21:46:43,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 21:46:43,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 21:46:43,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 21:46:43,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 21:46:43,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 21:46:43,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 21:46:43,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 21:46:43,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 21:46:43,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 21:46:43,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 21:46:43,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 21:46:43,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 21:46:43,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 21:46:43,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 21:46:43,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 21:46:43,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 21:46:43,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 21:46:43,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 21:46:43,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 21:46:43,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 21:46:43,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 21:46:43,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 21:46:43,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 21:46:43,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 21:46:43,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 21:46:43,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 21:46:43,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 21:46:43,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 21:46:43,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 21:46:43,736 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 21:46:43,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 21:46:43,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 21:46:43,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 21:46:43,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 21:46:43,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 21:46:43,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 21:46:43,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 21:46:43,738 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 21:46:43,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 21:46:43,738 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 21:46:43,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 21:46:43,740 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 21:46:43,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 21:46:43,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 21:46:43,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 21:46:43,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 21:46:43,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 21:46:43,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 21:46:43,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 21:46:43,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 21:46:43,741 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 21:46:43,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 21:46:43,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 21:46:43,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 21:46:43,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 21:46:43,929 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 21:46:43,929 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 21:46:43,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-2.wvr.c [2023-05-04 21:46:43,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b51b9a011/619b100d40cc4d62b05378782027bc1c/FLAG2625f1d0e [2023-05-04 21:46:44,349 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 21:46:44,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-2.wvr.c [2023-05-04 21:46:44,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b51b9a011/619b100d40cc4d62b05378782027bc1c/FLAG2625f1d0e [2023-05-04 21:46:44,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b51b9a011/619b100d40cc4d62b05378782027bc1c [2023-05-04 21:46:44,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 21:46:44,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 21:46:44,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 21:46:44,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 21:46:44,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 21:46:44,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0f7d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44, skipping insertion in model container [2023-05-04 21:46:44,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 21:46:44,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 21:46:44,554 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/unroll-2.wvr.c[2428,2441] [2023-05-04 21:46:44,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 21:46:44,567 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 21:46:44,597 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/unroll-2.wvr.c[2428,2441] [2023-05-04 21:46:44,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 21:46:44,611 INFO L208 MainTranslator]: Completed translation [2023-05-04 21:46:44,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44 WrapperNode [2023-05-04 21:46:44,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 21:46:44,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 21:46:44,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 21:46:44,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 21:46:44,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,645 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 134 [2023-05-04 21:46:44,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 21:46:44,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 21:46:44,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 21:46:44,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 21:46:44,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 21:46:44,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 21:46:44,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 21:46:44,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 21:46:44,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (1/1) ... [2023-05-04 21:46:44,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 21:46:44,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 21:46:44,702 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 21:46:44,704 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 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 21:46:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 21:46:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 21:46:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 21:46:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 21:46:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 21:46:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 21:46:44,752 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 21:46:44,835 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 21:46:44,836 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 21:46:45,026 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 21:46:45,032 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 21:46:45,033 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 21:46:45,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 09:46:45 BoogieIcfgContainer [2023-05-04 21:46:45,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 21:46:45,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 21:46:45,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 21:46:45,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 21:46:45,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 09:46:44" (1/3) ... [2023-05-04 21:46:45,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc2a80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 09:46:45, skipping insertion in model container [2023-05-04 21:46:45,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:46:44" (2/3) ... [2023-05-04 21:46:45,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc2a80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 09:46:45, skipping insertion in model container [2023-05-04 21:46:45,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 09:46:45" (3/3) ... [2023-05-04 21:46:45,043 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2023-05-04 21:46:45,053 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 21:46:45,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 21:46:45,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 21:46:45,059 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 21:46:45,119 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 21:46:45,147 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 21:46:45,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 21:46:45,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 21:46:45,156 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 21:46:45,157 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 21:46:45,179 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 21:46:45,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 21:46:45,195 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;@2a3f8897, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 21:46:45,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-04 21:46:45,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:46:45,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:46:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1893277434, now seen corresponding path program 1 times [2023-05-04 21:46:45,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:46:45,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757280869] [2023-05-04 21:46:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:46:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:46:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:46:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 21:46:45,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:46:45,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757280869] [2023-05-04 21:46:45,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757280869] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 21:46:45,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 21:46:45,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 21:46:45,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323888401] [2023-05-04 21:46:45,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 21:46:45,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 21:46:45,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:46:45,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 21:46:45,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 21:46:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:45,605 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:46:45,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 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 21:46:45,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:45,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:45,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 21:46:45,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:46:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:46:45,635 INFO L85 PathProgramCache]: Analyzing trace with hash -231556409, now seen corresponding path program 1 times [2023-05-04 21:46:45,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:46:45,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908955423] [2023-05-04 21:46:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:46:45,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:46:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:46:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 21:46:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:46:46,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908955423] [2023-05-04 21:46:46,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908955423] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 21:46:46,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 21:46:46,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 21:46:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744732176] [2023-05-04 21:46:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 21:46:46,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 21:46:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:46:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 21:46:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-05-04 21:46:46,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:46:46,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 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) [2023-05-04 21:46:46,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:46,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 21:46:46,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:46:46,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:46:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash -868849588, now seen corresponding path program 1 times [2023-05-04 21:46:46,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:46:46,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331443225] [2023-05-04 21:46:46,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:46:46,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:46:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:46:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-04 21:46:46,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:46:46,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331443225] [2023-05-04 21:46:46,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331443225] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 21:46:46,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 21:46:46,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-05-04 21:46:46,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055687247] [2023-05-04 21:46:46,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 21:46:46,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-04 21:46:46,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:46:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-04 21:46:46,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-05-04 21:46:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,479 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:46:46,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 21:46:46,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:46,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:46:46,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 21:46:46,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:46:46,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:46:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash -296026402, now seen corresponding path program 1 times [2023-05-04 21:46:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:46:46,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127922863] [2023-05-04 21:46:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:46:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:46:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:46:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 21:46:48,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:46:48,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127922863] [2023-05-04 21:46:48,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127922863] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 21:46:48,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909375203] [2023-05-04 21:46:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:46:48,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:46:48,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 21:46:48,861 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 21:46:48,877 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 21:46:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:46:48,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 47 conjunts are in the unsatisfiable core [2023-05-04 21:46:48,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 21:46:50,300 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-05-04 21:46:50,300 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2023-05-04 21:46:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 21:46:50,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 21:46:50,957 INFO L356 Elim1Store]: treesize reduction 10, result has 85.5 percent of original size [2023-05-04 21:46:50,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 84 [2023-05-04 21:46:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 21:46:51,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909375203] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 21:46:51,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 21:46:51,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 27, 22] total 72 [2023-05-04 21:46:51,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144893384] [2023-05-04 21:46:51,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 21:46:51,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-05-04 21:46:51,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:46:51,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-05-04 21:46:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=4610, Unknown=0, NotChecked=0, Total=5112 [2023-05-04 21:46:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:51,438 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:46:51,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 5.638888888888889) internal successors, (406), 72 states have internal predecessors, (406), 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 21:46:51,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:51,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:51,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:46:51,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:46:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-05-04 21:46:53,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-04 21:46:53,260 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,SelfDestructingSolverStorable3 [2023-05-04 21:46:53,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:46:53,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:46:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash -133478356, now seen corresponding path program 2 times [2023-05-04 21:46:53,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:46:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148508125] [2023-05-04 21:46:53,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:46:53,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:46:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:46:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 40 proven. 43 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-04 21:46:53,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:46:53,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148508125] [2023-05-04 21:46:53,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148508125] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 21:46:53,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734727729] [2023-05-04 21:46:53,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 21:46:53,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:46:53,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 21:46:53,623 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 21:46:53,646 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 21:46:53,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 21:46:53,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 21:46:53,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 22 conjunts are in the unsatisfiable core [2023-05-04 21:46:53,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 21:46:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-05-04 21:46:54,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 21:46:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-05-04 21:46:54,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734727729] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 21:46:54,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 21:46:54,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 30 [2023-05-04 21:46:54,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768060564] [2023-05-04 21:46:54,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 21:46:54,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-05-04 21:46:54,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:46:54,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-05-04 21:46:54,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2023-05-04 21:46:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:54,526 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:46:54,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.866666666666667) internal successors, (266), 30 states have internal predecessors, (266), 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 21:46:54,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:54,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:54,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:46:54,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-05-04 21:46:54,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:55,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:55,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:55,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:46:55,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 21:46:55,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 21:46:55,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-05-04 21:46:55,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:46:55,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:46:55,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:46:55,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1767386671, now seen corresponding path program 3 times [2023-05-04 21:46:55,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:46:55,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043005221] [2023-05-04 21:46:55,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:46:55,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:46:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:46:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-04 21:46:56,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:46:56,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043005221] [2023-05-04 21:46:56,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043005221] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 21:46:56,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325216439] [2023-05-04 21:46:56,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 21:46:56,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:46:56,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 21:46:56,945 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 21:46:56,969 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 21:46:57,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-05-04 21:46:57,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 21:46:57,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 16 conjunts are in the unsatisfiable core [2023-05-04 21:46:57,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 21:46:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-04 21:46:57,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 21:46:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-04 21:46:58,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325216439] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 21:46:58,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 21:46:58,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10, 10] total 35 [2023-05-04 21:46:58,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139679614] [2023-05-04 21:46:58,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 21:46:58,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-05-04 21:46:58,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:46:58,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-05-04 21:46:58,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1085, Unknown=0, NotChecked=0, Total=1190 [2023-05-04 21:46:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:58,048 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:46:58,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 11.142857142857142) internal successors, (390), 35 states have internal predecessors, (390), 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 21:46:58,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:46:58,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:46:58,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:46:58,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-04 21:46:58,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 21:46:58,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:47:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:47:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:47:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:47:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 21:47:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 21:47:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-04 21:47:03,263 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 21:47:03,447 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 [2023-05-04 21:47:03,447 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:47:03,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:47:03,448 INFO L85 PathProgramCache]: Analyzing trace with hash 816800332, now seen corresponding path program 4 times [2023-05-04 21:47:03,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:47:03,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963613530] [2023-05-04 21:47:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:47:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:47:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:47:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 106 proven. 109 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-05-04 21:47:03,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:47:03,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963613530] [2023-05-04 21:47:03,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963613530] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 21:47:03,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789686365] [2023-05-04 21:47:03,962 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 21:47:03,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:47:03,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 21:47:03,963 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 21:47:04,013 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 21:47:04,082 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 21:47:04,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 21:47:04,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 96 conjunts are in the unsatisfiable core [2023-05-04 21:47:04,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 21:47:07,445 INFO L356 Elim1Store]: treesize reduction 34, result has 30.6 percent of original size [2023-05-04 21:47:07,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 48 [2023-05-04 21:47:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 13 proven. 221 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 21:47:07,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 21:47:13,002 INFO L356 Elim1Store]: treesize reduction 20, result has 95.3 percent of original size [2023-05-04 21:47:13,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 268 treesize of output 500 [2023-05-04 21:47:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 5 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 21:47:20,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789686365] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 21:47:20,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 21:47:20,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 47, 49] total 107 [2023-05-04 21:47:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541378653] [2023-05-04 21:47:20,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 21:47:20,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2023-05-04 21:47:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:47:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2023-05-04 21:47:20,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=717, Invalid=10625, Unknown=0, NotChecked=0, Total=11342 [2023-05-04 21:47:20,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:47:20,839 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:47:20,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 6.214953271028038) internal successors, (665), 107 states have internal predecessors, (665), 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 21:47:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:47:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:47:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:47:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-04 21:47:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 21:47:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-05-04 21:47:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:47:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:47:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:47:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:47:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 21:47:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 21:47:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-04 21:47:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-05-04 21:47:31,272 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 21:47:31,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:47:31,465 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:47:31,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:47:31,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1717072422, now seen corresponding path program 5 times [2023-05-04 21:47:31,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:47:31,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838022746] [2023-05-04 21:47:31,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:47:31,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:47:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 21:47:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 21:47:58,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 21:47:58,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838022746] [2023-05-04 21:47:58,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838022746] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 21:47:58,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36676244] [2023-05-04 21:47:58,714 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 21:47:58,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:47:58,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 21:47:58,715 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 21:47:58,716 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 21:47:58,917 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-05-04 21:47:58,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 21:47:58,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 61 conjunts are in the unsatisfiable core [2023-05-04 21:47:58,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 21:48:00,347 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 21:48:00,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 70 [2023-05-04 21:48:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 21:48:00,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 21:48:01,715 INFO L356 Elim1Store]: treesize reduction 20, result has 92.8 percent of original size [2023-05-04 21:48:01,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 67 treesize of output 308 [2023-05-04 21:48:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 13 proven. 95 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 21:48:02,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36676244] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 21:48:02,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 21:48:02,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 31, 21] total 96 [2023-05-04 21:48:02,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208397385] [2023-05-04 21:48:02,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 21:48:02,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-05-04 21:48:02,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 21:48:02,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-05-04 21:48:02,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=8618, Unknown=0, NotChecked=0, Total=9120 [2023-05-04 21:48:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:48:02,438 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 21:48:02,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.979166666666667) internal successors, (574), 96 states have internal predecessors, (574), 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 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-04 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-05-04 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2023-05-04 21:48:02,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:48:08,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 21:48:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 21:48:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 21:48:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 21:48:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 21:48:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-05-04 21:48:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-05-04 21:48:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-05-04 21:48:08,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 21:48:08,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:48:08,423 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 21:48:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 21:48:08,423 INFO L85 PathProgramCache]: Analyzing trace with hash 534699830, now seen corresponding path program 6 times [2023-05-04 21:48:08,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 21:48:08,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929690768] [2023-05-04 21:48:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 21:48:08,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 21:48:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat