/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 GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 17:20:57,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 17:20:57,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 17:20:57,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 17:20:57,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 17:20:57,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 17:20:57,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 17:20:57,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 17:20:57,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 17:20:57,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 17:20:57,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 17:20:57,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 17:20:57,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 17:20:57,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 17:20:57,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 17:20:57,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 17:20:57,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 17:20:57,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 17:20:57,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 17:20:57,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 17:20:57,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 17:20:57,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 17:20:57,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 17:20:57,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 17:20:57,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 17:20:57,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 17:20:57,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 17:20:57,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 17:20:57,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 17:20:57,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 17:20:57,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 17:20:57,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 17:20:57,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 17:20:57,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 17:20:57,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 17:20:57,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 17:20:57,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 17:20:57,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 17:20:57,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 17:20:57,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 17:20:57,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 17:20:57,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 17:20:57,296 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 17:20:57,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 17:20:57,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 17:20:57,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 17:20:57,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 17:20:57,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 17:20:57,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 17:20:57,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 17:20:57,298 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 17:20:57,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 17:20:57,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 17:20:57,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 17:20:57,300 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 17:20:57,300 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 17:20:57,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 17:20:57,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 17:20:57,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 17:20:57,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 17:20:57,300 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 17:20:57,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-04 17:20:57,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 17:20:57,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 17:20:57,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 17:20:57,491 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 17:20:57,492 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 17:20:57,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-05-04 17:20:57,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c55511ae/84479595592c46f5ac87cd234955035c/FLAG80fcd078c [2023-05-04 17:20:58,019 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 17:20:58,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-05-04 17:20:58,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c55511ae/84479595592c46f5ac87cd234955035c/FLAG80fcd078c [2023-05-04 17:20:58,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c55511ae/84479595592c46f5ac87cd234955035c [2023-05-04 17:20:58,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 17:20:58,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 17:20:58,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 17:20:58,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 17:20:58,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 17:20:58,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2f1acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58, skipping insertion in model container [2023-05-04 17:20:58,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 17:20:58,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 17:20:58,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-05-04 17:20:58,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 17:20:58,436 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 17:20:58,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-05-04 17:20:58,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 17:20:58,531 INFO L208 MainTranslator]: Completed translation [2023-05-04 17:20:58,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58 WrapperNode [2023-05-04 17:20:58,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 17:20:58,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 17:20:58,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 17:20:58,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 17:20:58,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,607 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 339 [2023-05-04 17:20:58,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 17:20:58,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 17:20:58,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 17:20:58,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 17:20:58,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,663 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 17:20:58,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 17:20:58,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 17:20:58,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 17:20:58,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (1/1) ... [2023-05-04 17:20:58,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 17:20:58,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:20:58,688 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 17:20:58,697 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 17:20:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 17:20:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-05-04 17:20:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-05-04 17:20:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-05-04 17:20:58,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 17:20:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 17:20:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-05-04 17:20:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-05-04 17:20:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 17:20:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-05-04 17:20:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 17:20:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 17:20:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-05-04 17:20:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-05-04 17:20:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-05-04 17:20:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 17:20:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 17:20:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 17:20:58,738 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 17:20:58,885 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 17:20:58,886 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 17:20:59,252 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 17:20:59,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 17:20:59,259 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2023-05-04 17:20:59,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 05:20:59 BoogieIcfgContainer [2023-05-04 17:20:59,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 17:20:59,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 17:20:59,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 17:20:59,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 17:20:59,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 05:20:58" (1/3) ... [2023-05-04 17:20:59,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc02a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 05:20:59, skipping insertion in model container [2023-05-04 17:20:59,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:20:58" (2/3) ... [2023-05-04 17:20:59,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc02a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 05:20:59, skipping insertion in model container [2023-05-04 17:20:59,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 05:20:59" (3/3) ... [2023-05-04 17:20:59,267 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2023-05-04 17:20:59,273 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 17:20:59,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 17:20:59,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-05-04 17:20:59,279 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 17:20:59,398 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-05-04 17:20:59,453 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:20:59,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:20:59,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:20:59,455 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 17:20:59,456 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 17:20:59,476 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:20:59,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread1of1ForFork0 ======== [2023-05-04 17:20:59,492 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;@77868cc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:20:59,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:21:27,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:21:27,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:21:27,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1774321391, now seen corresponding path program 1 times [2023-05-04 17:21:27,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:21:27,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072396730] [2023-05-04 17:21:27,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:21:27,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:21:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:21:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 17:21:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:21:27,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072396730] [2023-05-04 17:21:27,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072396730] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:21:27,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:21:27,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 17:21:27,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162116798] [2023-05-04 17:21:27,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:21:27,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 17:21:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:21:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 17:21:27,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 17:21:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:27,943 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:21:27,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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 17:21:27,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:37,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:37,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 17:21:37,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:21:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:21:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1280788322, now seen corresponding path program 1 times [2023-05-04 17:21:37,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:21:37,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528944545] [2023-05-04 17:21:37,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:21:37,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:21:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:21:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 17:21:37,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:21:37,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528944545] [2023-05-04 17:21:37,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528944545] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:21:37,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744726382] [2023-05-04 17:21:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:21:37,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:21:37,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:21:37,638 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 17:21:37,638 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 17:21:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:21:37,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-04 17:21:37,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:21:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 17:21:37,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 17:21:37,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744726382] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:21:37,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 17:21:37,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-05-04 17:21:37,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727254929] [2023-05-04 17:21:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:21:37,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 17:21:37,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:21:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 17:21:37,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-05-04 17:21:37,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:37,923 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:21:37,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 17:21:37,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:37,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:44,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:21:44,609 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 17:21:44,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-05-04 17:21:44,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:21:44,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:21:44,810 INFO L85 PathProgramCache]: Analyzing trace with hash -546564886, now seen corresponding path program 1 times [2023-05-04 17:21:44,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:21:44,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494479195] [2023-05-04 17:21:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:21:44,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:21:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:21:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 17:21:45,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:21:45,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494479195] [2023-05-04 17:21:45,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494479195] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:21:45,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000047711] [2023-05-04 17:21:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:21:45,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:21:45,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:21:45,018 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 17:21:45,019 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 17:21:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:21:45,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 17:21:45,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:21:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 17:21:45,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:21:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 17:21:45,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000047711] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:21:45,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:21:45,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-05-04 17:21:45,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214743583] [2023-05-04 17:21:45,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:21:45,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-05-04 17:21:45,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:21:45,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-05-04 17:21:45,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-05-04 17:21:45,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:45,384 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:21:45,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 25.2) internal successors, (252), 10 states have internal predecessors, (252), 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 17:21:45,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:45,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:21:45,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:21:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:21:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:21:50,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 17:21:50,908 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 17:21:51,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:21:51,105 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 17:21:51,106 INFO L307 ceAbstractionStarter]: Result for error location t3_funThread1of1ForFork0 was SAFE (1/3) [2023-05-04 17:21:51,109 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:21:51,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:21:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:21:51,129 INFO L229 MonitoredProcess]: Starting monitored process 5 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 17:21:51,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2023-05-04 17:21:51,131 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:21:51,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 17:21:51,133 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;@77868cc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:21:51,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-04 17:21:54,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 17:21:54,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:21:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1558635138, now seen corresponding path program 1 times [2023-05-04 17:21:54,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:21:54,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258174953] [2023-05-04 17:21:54,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:21:54,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:21:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 17:21:54,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 17:21:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 17:21:54,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 17:21:54,407 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 17:21:54,407 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-05-04 17:21:54,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-05-04 17:21:54,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-05-04 17:21:54,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 17:21:54,413 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2023-05-04 17:21:54,413 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/3) [2023-05-04 17:21:54,413 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 17:21:54,413 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-05-04 17:21:54,464 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-05-04 17:21:54,467 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:21:54,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:21:54,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:21:54,469 INFO L229 MonitoredProcess]: Starting monitored process 6 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 17:21:54,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-05-04 17:21:54,472 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:21:54,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of2ForFork2 ======== [2023-05-04 17:21:54,474 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;@77868cc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:21:54,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:22:36,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:22:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:22:36,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1577446358, now seen corresponding path program 1 times [2023-05-04 17:22:36,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:22:36,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981430991] [2023-05-04 17:22:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:22:36,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:22:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:22:36,712 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-05-04 17:22:36,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:22:36,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981430991] [2023-05-04 17:22:36,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981430991] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:22:36,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:22:36,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 17:22:36,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849578318] [2023-05-04 17:22:36,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:22:36,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 17:22:36,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:22:36,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 17:22:36,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 17:22:36,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:36,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:22:36,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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 17:22:36,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:48,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 17:22:48,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:22:48,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:22:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2045630629, now seen corresponding path program 1 times [2023-05-04 17:22:48,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:22:48,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645195057] [2023-05-04 17:22:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:22:48,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:22:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:22:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:22:48,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:22:48,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645195057] [2023-05-04 17:22:48,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645195057] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:22:48,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:22:48,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 17:22:48,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282007435] [2023-05-04 17:22:48,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:22:48,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 17:22:48,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:22:48,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 17:22:48,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 17:22:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:48,722 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:22:48,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 17:22:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:48,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:48,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:22:48,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 17:22:48,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:22:48,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:22:48,870 INFO L85 PathProgramCache]: Analyzing trace with hash 879821176, now seen corresponding path program 1 times [2023-05-04 17:22:48,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:22:48,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949745245] [2023-05-04 17:22:48,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:22:48,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:22:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:22:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-04 17:22:49,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:22:49,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949745245] [2023-05-04 17:22:49,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949745245] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:22:49,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093990583] [2023-05-04 17:22:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:22:49,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:22:49,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:22:49,082 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 17:22:49,083 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 17:22:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:22:49,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 17:22:49,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:22:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-04 17:22:49,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:22:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-04 17:22:49,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093990583] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:22:49,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:22:49,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-05-04 17:22:49,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913625794] [2023-05-04 17:22:49,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:22:49,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 17:22:49,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:22:49,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 17:22:49,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-05-04 17:22:49,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:49,396 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:22:49,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.785714285714285) internal successors, (263), 14 states have internal predecessors, (263), 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 17:22:49,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:22:49,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:22:49,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:23:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:23:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:23:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 17:23:19,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 17:23:19,385 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 17:23:19,584 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 17:23:19,586 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 17:23:19,586 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread1of2ForFork2 was SAFE (1/5) [2023-05-04 17:23:19,589 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:23:19,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:23:19,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:23:19,593 INFO L229 MonitoredProcess]: Starting monitored process 8 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 17:23:19,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2023-05-04 17:23:19,599 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:23:19,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread2of2ForFork2 ======== [2023-05-04 17:23:19,602 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;@77868cc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:23:19,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:24:02,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:24:02,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:24:02,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1392469880, now seen corresponding path program 1 times [2023-05-04 17:24:02,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:24:02,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192442657] [2023-05-04 17:24:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:24:02,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:24:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:24:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-05-04 17:24:02,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:24:02,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192442657] [2023-05-04 17:24:02,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192442657] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:24:02,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:24:02,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 17:24:02,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674972986] [2023-05-04 17:24:02,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:24:02,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 17:24:02,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:24:02,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 17:24:02,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 17:24:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:02,929 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:24:02,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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 17:24:02,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:12,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:12,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-04 17:24:12,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:24:12,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:24:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1027724807, now seen corresponding path program 1 times [2023-05-04 17:24:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:24:12,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445889719] [2023-05-04 17:24:12,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:24:12,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:24:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:24:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:24:12,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:24:12,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445889719] [2023-05-04 17:24:12,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445889719] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:24:12,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:24:12,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 17:24:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793926598] [2023-05-04 17:24:12,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:24:12,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 17:24:12,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:24:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 17:24:12,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 17:24:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:12,427 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:24:12,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 17:24:12,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:12,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:24:12,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-04 17:24:12,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:24:12,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:24:12,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1936509114, now seen corresponding path program 1 times [2023-05-04 17:24:12,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:24:12,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300492369] [2023-05-04 17:24:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:24:12,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:24:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:24:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-04 17:24:12,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:24:12,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300492369] [2023-05-04 17:24:12,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300492369] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:24:12,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354489265] [2023-05-04 17:24:12,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:24:12,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:24:12,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:24:12,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:24:12,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-04 17:24:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:24:13,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 17:24:13,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:24:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-04 17:24:13,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:24:13,253 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-04 17:24:13,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354489265] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:24:13,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:24:13,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-05-04 17:24:13,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928866175] [2023-05-04 17:24:13,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:24:13,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 17:24:13,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:24:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 17:24:13,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-05-04 17:24:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:13,254 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:24:13,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.214285714285715) internal successors, (283), 14 states have internal predecessors, (283), 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 17:24:13,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:13,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:24:13,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:24:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:24:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 17:24:43,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 17:24:43,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 17:24:43,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-05-04 17:24:43,515 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 17:24:43,515 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread2of2ForFork2 was SAFE (2/5) [2023-05-04 17:24:43,520 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:24:43,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:24:43,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:24:43,545 INFO L229 MonitoredProcess]: Starting monitored process 10 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 17:24:43,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2023-05-04 17:24:43,558 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:24:43,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread1of2ForFork0 ======== [2023-05-04 17:24:43,560 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;@77868cc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:24:43,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.