/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/mult-dist.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 20:45:30,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 20:45:30,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 20:45:30,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 20:45:30,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 20:45:30,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 20:45:30,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 20:45:30,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 20:45:30,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 20:45:30,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 20:45:30,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 20:45:30,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 20:45:30,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 20:45:30,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 20:45:30,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 20:45:30,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 20:45:30,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 20:45:30,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 20:45:30,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 20:45:30,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 20:45:30,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 20:45:30,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 20:45:30,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 20:45:30,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 20:45:30,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 20:45:30,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 20:45:30,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 20:45:30,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 20:45:30,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 20:45:30,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 20:45:30,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 20:45:30,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 20:45:30,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 20:45:30,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 20:45:30,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 20:45:30,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 20:45:30,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 20:45:30,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 20:45:30,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 20:45:30,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 20:45:30,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 20:45:30,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 20:45:30,782 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 20:45:30,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 20:45:30,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 20:45:30,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 20:45:30,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 20:45:30,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 20:45:30,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 20:45:30,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 20:45:30,784 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 20:45:30,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 20:45:30,785 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 20:45:30,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 20:45:30,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 20:45:30,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 20:45:30,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 20:45:30,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 20:45:30,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 20:45:30,786 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 20:45:30,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 20:45:30,786 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 20:45:30,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 20:45:30,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 20:45:30,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 20:45:30,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 20:45:30,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 20:45:30,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 20:45:30,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 20:45:30,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 20:45:30,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 20:45:30,788 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 20:45:30,788 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 20:45:30,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 20:45:30,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 20:45:30,789 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 20:45:30,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 20:45:30,789 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 20:45:30,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 20:45:30,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 20:45:31,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 20:45:31,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 20:45:31,014 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 20:45:31,015 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 20:45:31,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-05-04 20:45:31,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57e1817bd/919566efc47640eea955ffe5a9a5c67f/FLAGe35e11156 [2023-05-04 20:45:31,458 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 20:45:31,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-05-04 20:45:31,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57e1817bd/919566efc47640eea955ffe5a9a5c67f/FLAGe35e11156 [2023-05-04 20:45:31,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57e1817bd/919566efc47640eea955ffe5a9a5c67f [2023-05-04 20:45:31,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 20:45:31,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 20:45:31,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 20:45:31,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 20:45:31,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 20:45:31,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7859ffa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31, skipping insertion in model container [2023-05-04 20:45:31,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 20:45:31,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 20:45:31,664 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/mult-dist.wvr.c[2116,2129] [2023-05-04 20:45:31,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 20:45:31,680 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 20:45:31,712 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/mult-dist.wvr.c[2116,2129] [2023-05-04 20:45:31,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 20:45:31,722 INFO L208 MainTranslator]: Completed translation [2023-05-04 20:45:31,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31 WrapperNode [2023-05-04 20:45:31,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 20:45:31,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 20:45:31,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 20:45:31,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 20:45:31,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,757 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-05-04 20:45:31,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 20:45:31,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 20:45:31,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 20:45:31,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 20:45:31,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 20:45:31,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 20:45:31,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 20:45:31,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 20:45:31,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (1/1) ... [2023-05-04 20:45:31,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 20:45:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:45:31,810 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 20:45:31,823 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 20:45:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 20:45:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 20:45:31,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 20:45:31,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 20:45:31,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 20:45:31,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-04 20:45:31,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-04 20:45:31,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 20:45:31,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 20:45:31,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 20:45:31,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 20:45:31,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 20:45:31,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 20:45:31,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 20:45:31,853 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 20:45:31,929 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 20:45:31,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 20:45:32,101 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 20:45:32,107 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 20:45:32,108 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 20:45:32,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 08:45:32 BoogieIcfgContainer [2023-05-04 20:45:32,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 20:45:32,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 20:45:32,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 20:45:32,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 20:45:32,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 08:45:31" (1/3) ... [2023-05-04 20:45:32,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ed0521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 08:45:32, skipping insertion in model container [2023-05-04 20:45:32,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:45:31" (2/3) ... [2023-05-04 20:45:32,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ed0521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 08:45:32, skipping insertion in model container [2023-05-04 20:45:32,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 08:45:32" (3/3) ... [2023-05-04 20:45:32,117 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2023-05-04 20:45:32,124 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 20:45:32,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 20:45:32,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 20:45:32,133 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 20:45:32,251 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-04 20:45:32,291 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 20:45:32,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 20:45:32,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:45:32,293 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 20:45:32,294 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 20:45:32,330 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 20:45:32,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 20:45:32,353 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;@4d9bae9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 20:45:32,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-04 20:45:32,584 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 1 more)] === [2023-05-04 20:45:32,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:45:32,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1109858939, now seen corresponding path program 1 times [2023-05-04 20:45:32,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:45:32,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619099664] [2023-05-04 20:45:32,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:45:32,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:45:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:45:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 20:45:32,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:45:32,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619099664] [2023-05-04 20:45:32,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619099664] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 20:45:32,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 20:45:32,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 20:45:32,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306401670] [2023-05-04 20:45:32,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 20:45:32,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 20:45:32,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:45:32,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 20:45:32,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 20:45:32,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:45:32,821 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:45:32,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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 20:45:32,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:45:32,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:45:32,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 20:45:32,862 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 1 more)] === [2023-05-04 20:45:32,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:45:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash -416757242, now seen corresponding path program 1 times [2023-05-04 20:45:32,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:45:32,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197909315] [2023-05-04 20:45:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:45:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:45:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:45:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:45:33,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:45:33,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197909315] [2023-05-04 20:45:33,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197909315] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:45:33,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092573530] [2023-05-04 20:45:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:45:33,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:45:33,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:45:33,735 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 20:45:33,757 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 20:45:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:45:33,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 15 conjunts are in the unsatisfiable core [2023-05-04 20:45:33,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:45:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:45:34,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:45:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 20:45:34,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092573530] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 20:45:34,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 20:45:34,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 14 [2023-05-04 20:45:34,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435849735] [2023-05-04 20:45:34,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 20:45:34,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 20:45:34,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:45:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 20:45:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-05-04 20:45:34,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:45:34,566 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:45:34,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 14 states have internal predecessors, (170), 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 20:45:34,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:45:34,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:45:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:45:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 20:45:34,780 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 20:45:34,957 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,SelfDestructingSolverStorable1 [2023-05-04 20:45:34,958 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 1 more)] === [2023-05-04 20:45:34,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:45:34,959 INFO L85 PathProgramCache]: Analyzing trace with hash -698058243, now seen corresponding path program 2 times [2023-05-04 20:45:34,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:45:34,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526423434] [2023-05-04 20:45:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:45:34,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:45:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:45:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:45:35,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:45:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526423434] [2023-05-04 20:45:35,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526423434] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:45:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514093647] [2023-05-04 20:45:35,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 20:45:35,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:45:35,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:45:35,796 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 20:45:35,817 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 20:45:35,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 20:45:35,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 20:45:35,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 27 conjunts are in the unsatisfiable core [2023-05-04 20:45:35,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:45:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:45:36,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:46:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:46:57,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514093647] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 20:46:57,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 20:46:57,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 42 [2023-05-04 20:46:57,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156953204] [2023-05-04 20:46:57,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 20:46:57,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-05-04 20:46:57,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:46:57,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-05-04 20:46:57,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1512, Unknown=29, NotChecked=0, Total=1722 [2023-05-04 20:46:57,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:46:57,141 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:46:57,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.761904761904762) internal successors, (158), 42 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 20:46:57,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:46:57,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 20:46:57,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:47:04,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 20:47:16,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 20:47:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:47:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 20:47:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-05-04 20:47:49,572 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 20:47:49,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:47:49,772 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 1 more)] === [2023-05-04 20:47:49,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:47:49,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1411726870, now seen corresponding path program 3 times [2023-05-04 20:47:49,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:47:49,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113255905] [2023-05-04 20:47:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:47:49,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:47:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:47:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 18 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:47:52,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:47:52,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113255905] [2023-05-04 20:47:52,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113255905] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:47:52,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169365068] [2023-05-04 20:47:52,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 20:47:52,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:47:52,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:47:52,485 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 20:47:52,487 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 20:47:53,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-04 20:47:53,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 20:47:53,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 55 conjunts are in the unsatisfiable core [2023-05-04 20:47:53,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:47:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 31 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:47:55,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:48:18,355 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 2705 DAG size of output: 2663 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-05-04 20:55:02,126 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 31 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:55:02,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169365068] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 20:55:02,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 20:55:02,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 31, 31] total 88 [2023-05-04 20:55:02,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062242030] [2023-05-04 20:55:02,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 20:55:02,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2023-05-04 20:55:02,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:55:02,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2023-05-04 20:55:02,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=634, Invalid=7022, Unknown=0, NotChecked=0, Total=7656 [2023-05-04 20:55:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:02,131 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:55:02,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.125) internal successors, (275), 88 states have internal predecessors, (275), 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 20:55:02,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:02,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 20:55:02,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-05-04 20:55:02,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:09,974 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 121 DAG size of output: 118 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 20:56:51,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:56:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 20:56:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-05-04 20:56:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2023-05-04 20:56:51,754 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 20:56:51,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:56:51,950 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 1 more)] === [2023-05-04 20:56:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:56:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash 11175250, now seen corresponding path program 4 times [2023-05-04 20:56:51,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:56:51,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797244078] [2023-05-04 20:56:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:56:51,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:56:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:56:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 33 proven. 544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:56:57,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:56:57,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797244078] [2023-05-04 20:56:57,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797244078] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:56:57,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973604235] [2023-05-04 20:56:57,401 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 20:56:57,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:56:57,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:56:57,404 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 20:56:57,405 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 20:56:57,608 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 20:56:57,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 20:56:57,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 100 conjunts are in the unsatisfiable core [2023-05-04 20:56:57,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:57:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 102 proven. 470 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 20:57:02,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:57:23,312 WARN L233 SmtUtils]: Spent 12.34s on a formula simplification. DAG size of input: 4025 DAG size of output: 3967 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-05-04 20:59:38,674 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 20:59:38,674 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 20:59:38,675 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 20:59:39,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-05-04 20:59:39,775 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 20:59:39,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown