/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.partial.order.reduction.in.concurrent.analysis DPOR_SLEEP_NEW_STATES -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_rmo.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-99e0210 [2023-03-23 20:56:31,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-23 20:56:31,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-23 20:56:31,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-23 20:56:31,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-23 20:56:31,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-23 20:56:31,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-23 20:56:31,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-23 20:56:31,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-23 20:56:31,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-23 20:56:31,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-23 20:56:31,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-23 20:56:31,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-23 20:56:31,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-23 20:56:31,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-23 20:56:31,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-23 20:56:31,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-23 20:56:31,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-23 20:56:31,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-23 20:56:31,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-23 20:56:31,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-23 20:56:31,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-23 20:56:31,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-23 20:56:31,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-23 20:56:31,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-23 20:56:31,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-23 20:56:31,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-23 20:56:31,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-23 20:56:31,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-23 20:56:31,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-23 20:56:31,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-23 20:56:31,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-23 20:56:31,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-23 20:56:31,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-23 20:56:31,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-23 20:56:31,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-23 20:56:31,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-23 20:56:31,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-23 20:56:31,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-23 20:56:31,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-23 20:56:31,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-23 20:56:31,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-03-23 20:56:31,336 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-23 20:56:31,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-23 20:56:31,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-23 20:56:31,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-23 20:56:31,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-23 20:56:31,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-23 20:56:31,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-23 20:56:31,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-23 20:56:31,338 INFO L138 SettingsManager]: * Use SBE=true [2023-03-23 20:56:31,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-23 20:56:31,338 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-23 20:56:31,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-23 20:56:31,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-23 20:56:31,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-23 20:56:31,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-23 20:56:31,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-23 20:56:31,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 20:56:31,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-03-23 20:56:31,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-03-23 20:56:31,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-23 20:56:31,341 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-03-23 20:56:31,341 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-03-23 20:56:31,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> DPOR_SLEEP_NEW_STATES [2023-03-23 20:56:31,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-23 20:56:31,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-23 20:56:31,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-23 20:56:31,574 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-23 20:56:31,575 INFO L275 PluginConnector]: CDTParser initialized [2023-03-23 20:56:31,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_rmo.i [2023-03-23 20:56:32,665 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-23 20:56:32,875 INFO L351 CDTParser]: Found 1 translation units. [2023-03-23 20:56:32,876 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_rmo.i [2023-03-23 20:56:32,891 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b88be37/10a71e3ee25e4d5c897b96285776b151/FLAG2bb4471c7 [2023-03-23 20:56:32,902 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b88be37/10a71e3ee25e4d5c897b96285776b151 [2023-03-23 20:56:32,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-23 20:56:32,906 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-03-23 20:56:32,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-23 20:56:32,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-23 20:56:32,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-23 20:56:32,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 08:56:32" (1/1) ... [2023-03-23 20:56:32,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18233f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:32, skipping insertion in model container [2023-03-23 20:56:32,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 08:56:32" (1/1) ... [2023-03-23 20:56:32,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-23 20:56:32,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-23 20:56:33,064 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_rmo.i[988,1001] [2023-03-23 20:56:33,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 20:56:33,237 INFO L203 MainTranslator]: Completed pre-run [2023-03-23 20:56:33,247 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_rmo.i[988,1001] [2023-03-23 20:56:33,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 20:56:33,315 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-03-23 20:56:33,315 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-03-23 20:56:33,321 INFO L208 MainTranslator]: Completed translation [2023-03-23 20:56:33,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33 WrapperNode [2023-03-23 20:56:33,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-23 20:56:33,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-03-23 20:56:33,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-03-23 20:56:33,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-03-23 20:56:33,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,385 INFO L138 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2023-03-23 20:56:33,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-03-23 20:56:33,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-23 20:56:33,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-23 20:56:33,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-23 20:56:33,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-23 20:56:33,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-23 20:56:33,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-23 20:56:33,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-23 20:56:33,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (1/1) ... [2023-03-23 20:56:33,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 20:56:33,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:56:33,459 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) [2023-03-23 20:56:33,477 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 [2023-03-23 20:56:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-23 20:56:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-23 20:56:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-03-23 20:56:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-23 20:56:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-23 20:56:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-23 20:56:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-03-23 20:56:33,489 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-03-23 20:56:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-03-23 20:56:33,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-03-23 20:56:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-03-23 20:56:33,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-03-23 20:56:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-23 20:56:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-03-23 20:56:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-23 20:56:33,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-23 20:56:33,491 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-03-23 20:56:33,600 INFO L236 CfgBuilder]: Building ICFG [2023-03-23 20:56:33,602 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-23 20:56:34,012 INFO L277 CfgBuilder]: Performing block encoding [2023-03-23 20:56:34,244 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-23 20:56:34,244 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-23 20:56:34,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 08:56:34 BoogieIcfgContainer [2023-03-23 20:56:34,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-23 20:56:34,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-23 20:56:34,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-23 20:56:34,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-23 20:56:34,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 08:56:32" (1/3) ... [2023-03-23 20:56:34,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7467910c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 08:56:34, skipping insertion in model container [2023-03-23 20:56:34,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:56:33" (2/3) ... [2023-03-23 20:56:34,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7467910c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 08:56:34, skipping insertion in model container [2023-03-23 20:56:34,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 08:56:34" (3/3) ... [2023-03-23 20:56:34,257 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_rmo.i [2023-03-23 20:56:34,263 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-03-23 20:56:34,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-23 20:56:34,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-23 20:56:34,269 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-03-23 20:56:34,330 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-03-23 20:56:34,365 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:56:34,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-03-23 20:56:34,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:56:34,367 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) [2023-03-23 20:56:34,386 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 [2023-03-23 20:56:34,400 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-03-23 20:56:34,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-03-23 20:56:34,411 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;@4018a052, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:56:34,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-03-23 20:56:34,519 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)] === [2023-03-23 20:56:34,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:56:34,523 INFO L85 PathProgramCache]: Analyzing trace with hash -783370371, now seen corresponding path program 1 times [2023-03-23 20:56:34,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:56:34,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519539215] [2023-03-23 20:56:34,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:56:34,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:56:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 20:56:34,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 20:56:34,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 20:56:34,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519539215] [2023-03-23 20:56:34,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519539215] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 20:56:34,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 20:56:34,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-23 20:56:34,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924816029] [2023-03-23 20:56:34,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 20:56:34,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-23 20:56:34,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 20:56:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-23 20:56:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-23 20:56:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:56:34,744 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 20:56:34,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 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) [2023-03-23 20:56:34,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:56:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:56:34,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-23 20:56:34,866 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)] === [2023-03-23 20:56:34,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:56:34,866 INFO L85 PathProgramCache]: Analyzing trace with hash -340405433, now seen corresponding path program 1 times [2023-03-23 20:56:34,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:56:34,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831013605] [2023-03-23 20:56:34,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:56:34,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:56:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 20:56:35,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 20:56:35,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 20:56:35,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831013605] [2023-03-23 20:56:35,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831013605] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 20:56:35,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 20:56:35,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-23 20:56:35,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995768103] [2023-03-23 20:56:35,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 20:56:35,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-23 20:56:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 20:56:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-23 20:56:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-23 20:56:35,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:56:35,318 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 20:56:35,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2023-03-23 20:56:35,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:56:35,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:56:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:56:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 20:56:35,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-03-23 20:56:35,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-03-23 20:56:35,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-03-23 20:56:35,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-03-23 20:56:35,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-23 20:56:35,481 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-23 20:56:35,483 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-03-23 20:56:35,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-23 20:56:35,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 08:56:35 BasicIcfg [2023-03-23 20:56:35,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-23 20:56:35,487 INFO L158 Benchmark]: Toolchain (without parser) took 2581.47ms. Allocated memory is still 276.8MB. Free memory was 227.2MB in the beginning and 115.8MB in the end (delta: 111.4MB). Peak memory consumption was 111.9MB. Max. memory is 8.0GB. [2023-03-23 20:56:35,488 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 156.2MB. Free memory was 103.2MB in the beginning and 103.1MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-23 20:56:35,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.43ms. Allocated memory is still 276.8MB. Free memory was 227.2MB in the beginning and 201.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-03-23 20:56:35,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.84ms. Allocated memory is still 276.8MB. Free memory was 201.5MB in the beginning and 198.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-23 20:56:35,490 INFO L158 Benchmark]: Boogie Preprocessor took 38.23ms. Allocated memory is still 276.8MB. Free memory was 198.9MB in the beginning and 196.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-23 20:56:35,491 INFO L158 Benchmark]: RCFGBuilder took 810.19ms. Allocated memory is still 276.8MB. Free memory was 196.3MB in the beginning and 187.1MB in the end (delta: 9.2MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. [2023-03-23 20:56:35,492 INFO L158 Benchmark]: TraceAbstraction took 1237.30ms. Allocated memory is still 276.8MB. Free memory was 186.6MB in the beginning and 115.8MB in the end (delta: 70.8MB). Peak memory consumption was 70.8MB. Max. memory is 8.0GB. [2023-03-23 20:56:35,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 156.2MB. Free memory was 103.2MB in the beginning and 103.1MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 416.43ms. Allocated memory is still 276.8MB. Free memory was 227.2MB in the beginning and 201.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.84ms. Allocated memory is still 276.8MB. Free memory was 201.5MB in the beginning and 198.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.23ms. Allocated memory is still 276.8MB. Free memory was 198.9MB in the beginning and 196.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 810.19ms. Allocated memory is still 276.8MB. Free memory was 196.3MB in the beginning and 187.1MB in the end (delta: 9.2MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1237.30ms. Allocated memory is still 276.8MB. Free memory was 186.6MB in the beginning and 115.8MB in the end (delta: 70.8MB). Peak memory consumption was 70.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12697, independent: 1156, independent conditional: 427, independent unconditional: 729, dependent: 11541, dependent conditional: 3, dependent unconditional: 11538, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1156, independent: 1156, independent conditional: 427, independent unconditional: 729, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1156, independent: 1156, independent conditional: 427, independent unconditional: 729, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1156, independent: 1156, independent conditional: 0, independent unconditional: 1156, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1156, independent: 1156, independent conditional: 0, independent unconditional: 1156, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1156, independent: 1156, independent conditional: 0, independent unconditional: 1156, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 352, independent: 352, independent conditional: 0, independent unconditional: 352, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 352, independent: 349, independent conditional: 0, independent unconditional: 349, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 33, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1156, independent: 804, independent conditional: 0, independent unconditional: 804, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 352, unknown conditional: 0, unknown unconditional: 352] , Statistics on independence cache: Total cache size (in pairs): 352, Positive cache size: 352, Positive conditional cache size: 0, Positive unconditional cache size: 352, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 11541 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 149 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-03-23 20:56:35,512 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 [2023-03-23 20:56:35,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...