/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/parallel-parallel-sum-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 20:54:48,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 20:54:48,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 20:54:48,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 20:54:48,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 20:54:48,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 20:54:48,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 20:54:48,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 20:54:48,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 20:54:48,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 20:54:48,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 20:54:48,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 20:54:48,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 20:54:48,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 20:54:48,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 20:54:48,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 20:54:48,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 20:54:48,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 20:54:48,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 20:54:48,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 20:54:48,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 20:54:48,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 20:54:48,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 20:54:48,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 20:54:48,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 20:54:48,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 20:54:48,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 20:54:48,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 20:54:48,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 20:54:48,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 20:54:48,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 20:54:48,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 20:54:48,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 20:54:48,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 20:54:48,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 20:54:48,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 20:54:48,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 20:54:48,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 20:54:48,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 20:54:48,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 20:54:48,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 20:54:48,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 20:54:48,581 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 20:54:48,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 20:54:48,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 20:54:48,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 20:54:48,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 20:54:48,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 20:54:48,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 20:54:48,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 20:54:48,583 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 20:54:48,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 20:54:48,583 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 20:54:48,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 20:54:48,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 20:54:48,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 20:54:48,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 20:54:48,585 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 20:54:48,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 20:54:48,586 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 20:54:48,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 20:54:48,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 20:54:48,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 20:54:48,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 20:54:48,745 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 20:54:48,746 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 20:54:48,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2023-05-04 20:54:48,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01237bdf8/7e86a05432144960b57faf7d96d1593e/FLAGbd3075c1a [2023-05-04 20:54:49,160 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 20:54:49,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2023-05-04 20:54:49,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01237bdf8/7e86a05432144960b57faf7d96d1593e/FLAGbd3075c1a [2023-05-04 20:54:49,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01237bdf8/7e86a05432144960b57faf7d96d1593e [2023-05-04 20:54:49,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 20:54:49,596 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 20:54:49,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 20:54:49,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 20:54:49,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 20:54:49,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22642d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49, skipping insertion in model container [2023-05-04 20:54:49,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 20:54:49,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 20:54:49,830 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/parallel-parallel-sum-1.wvr.c[3642,3655] [2023-05-04 20:54:49,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 20:54:49,848 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 20:54:49,880 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/parallel-parallel-sum-1.wvr.c[3642,3655] [2023-05-04 20:54:49,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 20:54:49,890 INFO L208 MainTranslator]: Completed translation [2023-05-04 20:54:49,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49 WrapperNode [2023-05-04 20:54:49,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 20:54:49,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 20:54:49,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 20:54:49,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 20:54:49,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,924 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 297 [2023-05-04 20:54:49,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 20:54:49,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 20:54:49,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 20:54:49,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 20:54:49,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,943 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 20:54:49,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 20:54:49,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 20:54:49,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 20:54:49,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (1/1) ... [2023-05-04 20:54:49,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 20:54:49,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:54:49,984 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 20:54:50,004 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 20:54:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 20:54:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 20:54:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 20:54:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 20:54:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 20:54:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-04 20:54:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-05-04 20:54:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 20:54:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 20:54:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 20:54:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 20:54:50,012 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 20:54:50,098 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 20:54:50,099 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 20:54:50,409 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 20:54:50,509 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 20:54:50,509 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2023-05-04 20:54:50,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 08:54:50 BoogieIcfgContainer [2023-05-04 20:54:50,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 20:54:50,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 20:54:50,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 20:54:50,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 20:54:50,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 08:54:49" (1/3) ... [2023-05-04 20:54:50,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298cdfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 08:54:50, skipping insertion in model container [2023-05-04 20:54:50,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:54:49" (2/3) ... [2023-05-04 20:54:50,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298cdfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 08:54:50, skipping insertion in model container [2023-05-04 20:54:50,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 08:54:50" (3/3) ... [2023-05-04 20:54:50,523 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2023-05-04 20:54:50,541 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 20:54:50,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 20:54:50,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 20:54:50,548 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 20:54:50,636 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-05-04 20:54:50,676 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 20:54:50,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 20:54:50,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:54:50,683 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 20:54:50,684 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 20:54:50,719 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 20:54:50,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 20:54:50,763 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;@54e7e03d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 20:54:50,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-05-04 20:54:51,006 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 2 more)] === [2023-05-04 20:54:51,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:54:51,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1622855955, now seen corresponding path program 1 times [2023-05-04 20:54:51,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:54:51,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428248178] [2023-05-04 20:54:51,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:54:51,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:54:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:54:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-05-04 20:54:51,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:54:51,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428248178] [2023-05-04 20:54:51,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428248178] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 20:54:51,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 20:54:51,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 20:54:51,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571581392] [2023-05-04 20:54:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 20:54:51,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 20:54:51,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:54:51,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 20:54:51,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 20:54:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:51,366 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:54:51,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 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 20:54:51,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:51,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 20:54:51,416 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 2 more)] === [2023-05-04 20:54:51,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:54:51,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1921359227, now seen corresponding path program 1 times [2023-05-04 20:54:51,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:54:51,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220969578] [2023-05-04 20:54:51,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:54:51,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:54:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:54:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:54:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:54:52,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220969578] [2023-05-04 20:54:52,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220969578] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 20:54:52,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 20:54:52,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-05-04 20:54:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793383626] [2023-05-04 20:54:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 20:54:52,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-04 20:54:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:54:52,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-04 20:54:52,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-05-04 20:54:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:52,208 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:54:52,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 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 20:54:52,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:52,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:52,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:52,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:54:52,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 20:54:52,408 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 2 more)] === [2023-05-04 20:54:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:54:52,409 INFO L85 PathProgramCache]: Analyzing trace with hash -978831570, now seen corresponding path program 1 times [2023-05-04 20:54:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:54:52,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250833064] [2023-05-04 20:54:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:54:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:54:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:54:53,001 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-04 20:54:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:54:53,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250833064] [2023-05-04 20:54:53,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250833064] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:54:53,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917386483] [2023-05-04 20:54:53,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:54:53,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:54:53,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:54:53,030 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 20:54:53,058 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 20:54:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:54:53,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 15 conjunts are in the unsatisfiable core [2023-05-04 20:54:53,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:54:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 20:54:53,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:54:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-04 20:54:53,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917386483] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 20:54:53,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 20:54:53,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11] total 28 [2023-05-04 20:54:53,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649597210] [2023-05-04 20:54:53,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 20:54:53,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-05-04 20:54:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:54:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-05-04 20:54:53,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2023-05-04 20:54:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:53,824 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:54:53,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.964285714285714) internal successors, (363), 28 states have internal predecessors, (363), 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 20:54:53,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:53,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:54:53,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:54,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:54:54,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-05-04 20:54:54,474 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 20:54:54,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-05-04 20:54:54,658 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 2 more)] === [2023-05-04 20:54:54,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:54:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -951474803, now seen corresponding path program 2 times [2023-05-04 20:54:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:54:54,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100549109] [2023-05-04 20:54:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:54:54,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:54:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:54:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-05-04 20:54:55,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:54:55,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100549109] [2023-05-04 20:54:55,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100549109] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:54:55,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538251180] [2023-05-04 20:54:55,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 20:54:55,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:54:55,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:54:55,302 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 20:54:55,355 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 20:54:55,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 20:54:55,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 20:54:55,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 21 conjunts are in the unsatisfiable core [2023-05-04 20:54:55,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:54:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 55 proven. 18 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-05-04 20:54:55,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:54:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 64 proven. 9 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-05-04 20:54:56,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538251180] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 20:54:56,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 20:54:56,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 16] total 37 [2023-05-04 20:54:56,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510311617] [2023-05-04 20:54:56,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 20:54:56,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-05-04 20:54:56,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:54:56,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-05-04 20:54:56,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1068, Unknown=0, NotChecked=0, Total=1332 [2023-05-04 20:54:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:56,214 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:54:56,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 9.45945945945946) internal successors, (350), 37 states have internal predecessors, (350), 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 20:54:56,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:56,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:54:56,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-05-04 20:54:56,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:54:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-05-04 20:54:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 20:54:56,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 20:54:56,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:54:56,971 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 2 more)] === [2023-05-04 20:54:56,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:54:56,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1420681110, now seen corresponding path program 3 times [2023-05-04 20:54:56,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:54:56,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65226577] [2023-05-04 20:54:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:54:56,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:54:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:54:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 54 proven. 30 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-05-04 20:54:57,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:54:57,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65226577] [2023-05-04 20:54:57,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65226577] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:54:57,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068851562] [2023-05-04 20:54:57,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 20:54:57,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:54:57,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:54:57,560 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 20:54:57,581 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 20:54:57,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-04 20:54:57,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 20:54:57,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 29 conjunts are in the unsatisfiable core [2023-05-04 20:54:57,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:54:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 57 proven. 117 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 20:54:58,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:54:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 99 proven. 75 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 20:54:59,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068851562] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 20:54:59,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 20:54:59,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 24, 24] total 55 [2023-05-04 20:54:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194948956] [2023-05-04 20:54:59,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 20:54:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-05-04 20:54:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:54:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-05-04 20:54:59,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=2502, Unknown=0, NotChecked=0, Total=2970 [2023-05-04 20:54:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:59,093 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:54:59,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 8.981818181818182) internal successors, (494), 55 states have internal predecessors, (494), 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 20:54:59,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:54:59,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:54:59,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-05-04 20:54:59,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 20:54:59,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:00,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:55:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 20:55:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 20:55:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-04 20:55:00,273 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 20:55:00,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:55:00,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-04 20:55:00,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:55:00,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1778482650, now seen corresponding path program 4 times [2023-05-04 20:55:00,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:55:00,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446450708] [2023-05-04 20:55:00,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:55:00,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:55:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:55:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 80 proven. 149 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 20:55:01,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:55:01,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446450708] [2023-05-04 20:55:01,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446450708] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:55:01,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789235143] [2023-05-04 20:55:01,364 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 20:55:01,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:55:01,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:55:01,373 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 20:55:01,425 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 20:55:01,528 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 20:55:01,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 20:55:01,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 31 conjunts are in the unsatisfiable core [2023-05-04 20:55:01,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:55:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 111 proven. 118 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 20:55:02,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:55:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 154 proven. 75 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 20:55:03,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789235143] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 20:55:03,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 20:55:03,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 67 [2023-05-04 20:55:03,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453348862] [2023-05-04 20:55:03,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 20:55:03,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-05-04 20:55:03,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 20:55:03,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-05-04 20:55:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=618, Invalid=3804, Unknown=0, NotChecked=0, Total=4422 [2023-05-04 20:55:03,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:03,081 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 20:55:03,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.835820895522388) internal successors, (458), 67 states have internal predecessors, (458), 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 20:55:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:55:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 20:55:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 20:55:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-05-04 20:55:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 20:55:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 20:55:04,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 20:55:04,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 20:55:04,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-04 20:55:04,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-05-04 20:55:04,243 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 20:55:04,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:55:04,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-04 20:55:04,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 20:55:04,428 INFO L85 PathProgramCache]: Analyzing trace with hash -395411182, now seen corresponding path program 5 times [2023-05-04 20:55:04,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 20:55:04,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105144448] [2023-05-04 20:55:04,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 20:55:04,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 20:55:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 20:55:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 259 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-05-04 20:55:11,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 20:55:11,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105144448] [2023-05-04 20:55:11,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105144448] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 20:55:11,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016645166] [2023-05-04 20:55:11,197 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 20:55:11,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 20:55:11,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 20:55:11,198 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 20:55:11,199 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 20:55:11,524 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-05-04 20:55:11,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 20:55:11,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 270 conjunts are in the unsatisfiable core [2023-05-04 20:55:11,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 20:55:13,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-05-04 20:55:14,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-05-04 20:55:14,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-05-04 20:55:14,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:14,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2023-05-04 20:55:15,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:15,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2023-05-04 20:55:18,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,467 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 20:55:18,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,469 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 20:55:18,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,475 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 20:55:18,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,484 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 20:55:18,486 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 20:55:18,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 20:55:18,487 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 20:55:18,497 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 20:55:18,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 109 treesize of output 39 [2023-05-04 20:55:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 20:55:18,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 20:55:53,047 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 20:55:53,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 264 treesize of output 181 [2023-05-04 20:55:53,358 INFO L356 Elim1Store]: treesize reduction 124, result has 53.2 percent of original size [2023-05-04 20:55:53,361 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 8 new quantified variables, introduced 28 case distinctions, treesize of input 40108022 treesize of output 36733058 [2023-05-04 20:56:23,791 WARN L233 SmtUtils]: Spent 30.43s on a formula simplification that was a NOOP. DAG size: 2428 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-05-04 20:56:24,193 INFO L356 Elim1Store]: treesize reduction 70, result has 64.5 percent of original size [2023-05-04 20:56:24,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 36732918 treesize of output 29524084 [2023-05-04 20:56:54,784 WARN L233 SmtUtils]: Spent 30.59s on a formula simplification that was a NOOP. DAG size: 2454 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-05-04 20:56:55,144 INFO L356 Elim1Store]: treesize reduction 124, result has 53.2 percent of original size [2023-05-04 20:56:55,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 29523958 treesize of output 26935426 [2023-05-04 20:57:25,904 WARN L233 SmtUtils]: Spent 30.76s on a formula simplification that was a NOOP. DAG size: 2483 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-05-04 20:57:26,271 INFO L356 Elim1Store]: treesize reduction 124, result has 53.2 percent of original size [2023-05-04 20:57:26,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 26935286 treesize of output 21758082 [2023-05-04 20:57:56,911 WARN L233 SmtUtils]: Spent 30.63s on a formula simplification that was a NOOP. DAG size: 2510 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-05-04 20:57:57,179 INFO L356 Elim1Store]: treesize reduction 28, result has 78.0 percent of original size [2023-05-04 20:57:57,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 21757942 treesize of output 11010136 [2023-05-04 20:58:27,870 WARN L233 SmtUtils]: Spent 30.69s on a formula simplification that was a NOOP. DAG size: 2519 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-05-04 21:04:59,896 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-05-04 21:04:59,902 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2023-05-04 21:04:59,902 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 101 [2023-05-04 21:04:59,918 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 21:05:00,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 21:05:00,103 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:800) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 71 more [2023-05-04 21:05:00,108 INFO L158 Benchmark]: Toolchain (without parser) took 610512.06ms. Allocated memory was 191.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 137.5MB in the beginning and 568.9MB in the end (delta: -431.4MB). Peak memory consumption was 767.4MB. Max. memory is 8.0GB. [2023-05-04 21:05:00,108 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 154.7MB in the beginning and 154.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 21:05:00,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.71ms. Allocated memory is still 191.9MB. Free memory was 137.3MB in the beginning and 162.2MB in the end (delta: -24.9MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2023-05-04 21:05:00,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.55ms. Allocated memory is still 191.9MB. Free memory was 162.1MB in the beginning and 159.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-04 21:05:00,109 INFO L158 Benchmark]: Boogie Preprocessor took 21.68ms. Allocated memory is still 191.9MB. Free memory was 159.1MB in the beginning and 157.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 21:05:00,109 INFO L158 Benchmark]: RCFGBuilder took 564.66ms. Allocated memory is still 191.9MB. Free memory was 157.0MB in the beginning and 109.2MB in the end (delta: 47.8MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2023-05-04 21:05:00,109 INFO L158 Benchmark]: TraceAbstraction took 609595.14ms. Allocated memory was 191.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 108.2MB in the beginning and 568.9MB in the end (delta: -460.8MB). Peak memory consumption was 738.7MB. Max. memory is 8.0GB. [2023-05-04 21:05:00,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 154.7MB in the beginning and 154.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 292.71ms. Allocated memory is still 191.9MB. Free memory was 137.3MB in the beginning and 162.2MB in the end (delta: -24.9MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.55ms. Allocated memory is still 191.9MB. Free memory was 162.1MB in the beginning and 159.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.68ms. Allocated memory is still 191.9MB. Free memory was 159.1MB in the beginning and 157.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 564.66ms. Allocated memory is still 191.9MB. Free memory was 157.0MB in the beginning and 109.2MB in the end (delta: 47.8MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * TraceAbstraction took 609595.14ms. Allocated memory was 191.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 108.2MB in the beginning and 568.9MB in the end (delta: -460.8MB). Peak memory consumption was 738.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-05-04 21:05:00,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request...