/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-20 16:03:20,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-20 16:03:20,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-20 16:03:20,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-20 16:03:20,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-20 16:03:20,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-20 16:03:20,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-20 16:03:20,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-20 16:03:20,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-20 16:03:20,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-20 16:03:20,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-20 16:03:20,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-20 16:03:20,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-20 16:03:20,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-20 16:03:20,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-20 16:03:20,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-20 16:03:20,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-20 16:03:20,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-20 16:03:20,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-20 16:03:20,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-20 16:03:20,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-20 16:03:20,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-20 16:03:20,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-20 16:03:20,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-20 16:03:20,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-20 16:03:20,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-20 16:03:20,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-20 16:03:20,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-20 16:03:20,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-20 16:03:20,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-05-20 16:03:20,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-20 16:03:20,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-20 16:03:20,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-20 16:03:20,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-20 16:03:20,605 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-20 16:03:20,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-20 16:03:20,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-20 16:03:20,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-20 16:03:20,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-20 16:03:20,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-20 16:03:20,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-20 16:03:20,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-20 16:03:20,607 INFO L138 SettingsManager]: * Use SBE=true [2023-05-20 16:03:20,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-20 16:03:20,607 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-20 16:03:20,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-20 16:03:20,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-20 16:03:20,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-20 16:03:20,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-20 16:03:20,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-20 16:03:20,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-20 16:03:20,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-20 16:03:20,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-20 16:03:20,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-20 16:03:20,610 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-20 16:03:20,610 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-20 16:03:20,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-20 16:03:20,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-20 16:03:20,611 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-20 16:03:20,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-20 16:03:20,611 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-20 16:03:20,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-20 16:03:20,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-20 16:03:20,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-20 16:03:20,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-20 16:03:20,822 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-20 16:03:20,823 INFO L275 PluginConnector]: CDTParser initialized [2023-05-20 16:03:20,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i [2023-05-20 16:03:20,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ae71786/5b71801352dd4e22a4ee7020429ef07a/FLAGd14c1277e [2023-05-20 16:03:21,331 INFO L306 CDTParser]: Found 1 translation units. [2023-05-20 16:03:21,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i [2023-05-20 16:03:21,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ae71786/5b71801352dd4e22a4ee7020429ef07a/FLAGd14c1277e [2023-05-20 16:03:21,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ae71786/5b71801352dd4e22a4ee7020429ef07a [2023-05-20 16:03:21,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-20 16:03:21,356 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-20 16:03:21,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-20 16:03:21,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-20 16:03:21,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-20 16:03:21,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d7a97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21, skipping insertion in model container [2023-05-20 16:03:21,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-20 16:03:21,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-20 16:03:21,660 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_03-munge_racing.i[30176,30189] [2023-05-20 16:03:21,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-20 16:03:21,691 INFO L203 MainTranslator]: Completed pre-run [2023-05-20 16:03:21,718 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_03-munge_racing.i[30176,30189] [2023-05-20 16:03:21,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-20 16:03:21,757 INFO L208 MainTranslator]: Completed translation [2023-05-20 16:03:21,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21 WrapperNode [2023-05-20 16:03:21,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-20 16:03:21,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-20 16:03:21,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-20 16:03:21,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-20 16:03:21,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,802 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 199 [2023-05-20 16:03:21,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-20 16:03:21,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-20 16:03:21,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-20 16:03:21,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-20 16:03:21,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-20 16:03:21,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-20 16:03:21,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-20 16:03:21,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-20 16:03:21,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (1/1) ... [2023-05-20 16:03:21,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-20 16:03:21,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:21,861 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) [2023-05-20 16:03:21,870 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 [2023-05-20 16:03:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-20 16:03:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-05-20 16:03:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-05-20 16:03:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-20 16:03:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-05-20 16:03:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-20 16:03:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-20 16:03:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-05-20 16:03:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-05-20 16:03:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-20 16:03:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-20 16:03:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-20 16:03:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-20 16:03:21,888 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-20 16:03:21,971 INFO L235 CfgBuilder]: Building ICFG [2023-05-20 16:03:21,973 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-20 16:03:22,245 INFO L276 CfgBuilder]: Performing block encoding [2023-05-20 16:03:22,251 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-20 16:03:22,251 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2023-05-20 16:03:22,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.05 04:03:22 BoogieIcfgContainer [2023-05-20 16:03:22,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-20 16:03:22,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-20 16:03:22,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-20 16:03:22,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-20 16:03:22,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.05 04:03:21" (1/3) ... [2023-05-20 16:03:22,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc22564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.05 04:03:22, skipping insertion in model container [2023-05-20 16:03:22,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 04:03:21" (2/3) ... [2023-05-20 16:03:22,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc22564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.05 04:03:22, skipping insertion in model container [2023-05-20 16:03:22,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.05 04:03:22" (3/3) ... [2023-05-20 16:03:22,293 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2023-05-20 16:03:22,306 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-20 16:03:22,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-20 16:03:22,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-05-20 16:03:22,312 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-20 16:03:22,423 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-05-20 16:03:22,459 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:22,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-20 16:03:22,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:22,461 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) [2023-05-20 16:03:22,468 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 [2023-05-20 16:03:22,485 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-20 16:03:22,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork1 ======== [2023-05-20 16:03:22,501 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;@51fd78bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:22,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-20 16:03:22,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:03:22,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:22,682 INFO L85 PathProgramCache]: Analyzing trace with hash 462266706, now seen corresponding path program 1 times [2023-05-20 16:03:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:22,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796212395] [2023-05-20 16:03:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-20 16:03:22,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:22,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796212395] [2023-05-20 16:03:22,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796212395] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:03:22,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 16:03:22,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-20 16:03:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220893388] [2023-05-20 16:03:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:03:22,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-20 16:03:22,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:22,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-20 16:03:22,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-20 16:03:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:22,907 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:22,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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) [2023-05-20 16:03:22,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:22,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:22,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-20 16:03:22,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:03:22,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:22,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1286900791, now seen corresponding path program 1 times [2023-05-20 16:03:22,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:22,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637431508] [2023-05-20 16:03:22,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:22,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 16:03:23,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637431508] [2023-05-20 16:03:23,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637431508] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:03:23,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 16:03:23,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-20 16:03:23,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037433170] [2023-05-20 16:03:23,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:03:23,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-20 16:03:23,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:23,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-20 16:03:23,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-20 16:03:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:23,078 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:23,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-05-20 16:03:23,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:23,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:24,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 16:03:24,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-20 16:03:24,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:03:24,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:24,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1846328541, now seen corresponding path program 1 times [2023-05-20 16:03:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:24,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482787563] [2023-05-20 16:03:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:24,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 16:03:24,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:24,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482787563] [2023-05-20 16:03:24,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482787563] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 16:03:24,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415728327] [2023-05-20 16:03:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:24,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 16:03:24,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:24,308 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) [2023-05-20 16:03:24,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-20 16:03:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:24,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-20 16:03:24,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 16:03:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 16:03:24,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 16:03:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 16:03:24,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415728327] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 16:03:24,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 16:03:24,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-05-20 16:03:24,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480997130] [2023-05-20 16:03:24,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 16:03:24,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-05-20 16:03:24,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:24,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-05-20 16:03:24,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-05-20 16:03:24,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:24,556 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:24,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 10 states have internal predecessors, (149), 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) [2023-05-20 16:03:24,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:24,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-20 16:03:24,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 16:03:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-20 16:03:24,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-20 16:03:24,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-20 16:03:24,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-05-20 16:03:24,913 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-20 16:03:24,913 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork1 was SAFE (1/3) [2023-05-20 16:03:24,916 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:24,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-20 16:03:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:24,918 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-20 16:03:24,958 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-20 16:03:24,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1_funThread1of1ForFork0 ======== [2023-05-20 16:03:24,960 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;@51fd78bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:24,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-20 16:03:24,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2023-05-20 16:03:25,044 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:03:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:25,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1135375883, now seen corresponding path program 1 times [2023-05-20 16:03:25,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:25,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129693219] [2023-05-20 16:03:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:25,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-20 16:03:25,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:25,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129693219] [2023-05-20 16:03:25,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129693219] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 16:03:25,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292167537] [2023-05-20 16:03:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:25,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 16:03:25,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:25,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 16:03:25,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-20 16:03:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:25,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 1 conjunts are in the unsatisfiable core [2023-05-20 16:03:25,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 16:03:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 16:03:25,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-20 16:03:25,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292167537] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:03:25,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-20 16:03:25,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2023-05-20 16:03:25,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255638485] [2023-05-20 16:03:25,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:03:25,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-20 16:03:25,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:25,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-20 16:03:25,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-20 16:03:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:25,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:25,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-20 16:03:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:26,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:26,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-20 16:03:27,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 16:03:27,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:03:27,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:27,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1062706916, now seen corresponding path program 1 times [2023-05-20 16:03:27,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:27,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147508899] [2023-05-20 16:03:27,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:27,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 16:03:27,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:27,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147508899] [2023-05-20 16:03:27,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147508899] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 16:03:27,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409839938] [2023-05-20 16:03:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:27,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 16:03:27,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:27,195 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 16:03:27,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-20 16:03:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:27,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-20 16:03:27,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 16:03:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 16:03:27,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 16:03:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 16:03:27,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409839938] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 16:03:27,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 16:03:27,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-05-20 16:03:27,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324834383] [2023-05-20 16:03:27,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 16:03:27,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-05-20 16:03:27,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-05-20 16:03:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-05-20 16:03:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:27,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2023-05-20 16:03:27,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-20 16:03:27,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-20 16:03:27,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 16:03:27,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:03:27,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1260815694, now seen corresponding path program 1 times [2023-05-20 16:03:27,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:27,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145400193] [2023-05-20 16:03:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:27,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 16:03:27,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:27,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145400193] [2023-05-20 16:03:27,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145400193] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:03:27,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 16:03:27,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-20 16:03:27,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031849613] [2023-05-20 16:03:27,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:03:27,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-20 16:03:27,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:27,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-20 16:03:27,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-20 16:03:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,673 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:27,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2023-05-20 16:03:27,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-20 16:03:27,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-20 16:03:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-20 16:03:27,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-20 16:03:27,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-20 16:03:27,722 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-20 16:03:27,722 INFO L307 ceAbstractionStarter]: Result for error location t1_funThread1of1ForFork0 was SAFE (2/3) [2023-05-20 16:03:27,724 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:27,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-20 16:03:27,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:27,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-20 16:03:27,727 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-20 16:03:27,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-20 16:03:27,729 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;@51fd78bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:27,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-05-20 16:03:27,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-05-20 16:03:27,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 16:03:27,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash -572196224, now seen corresponding path program 1 times [2023-05-20 16:03:27,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:27,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829647186] [2023-05-20 16:03:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:27,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 16:03:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:27,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829647186] [2023-05-20 16:03:27,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829647186] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:03:27,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 16:03:27,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-20 16:03:27,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326644012] [2023-05-20 16:03:27,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:03:27,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-20 16:03:27,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-20 16:03:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-20 16:03:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,802 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:27,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2023-05-20 16:03:27,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:27,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 16:03:27,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-05-20 16:03:27,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 16:03:27,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:27,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1023713579, now seen corresponding path program 1 times [2023-05-20 16:03:27,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:27,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055986201] [2023-05-20 16:03:27,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:27,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:27,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 16:03:27,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:27,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055986201] [2023-05-20 16:03:27,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055986201] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 16:03:27,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908163149] [2023-05-20 16:03:27,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:27,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 16:03:27,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:27,933 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 16:03:27,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-20 16:03:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:28,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-20 16:03:28,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 16:03:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 16:03:28,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 16:03:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-20 16:03:28,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908163149] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 16:03:28,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 16:03:28,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-05-20 16:03:28,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609451417] [2023-05-20 16:03:28,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 16:03:28,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-05-20 16:03:28,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:28,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-05-20 16:03:28,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-05-20 16:03:28,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:28,137 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:28,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 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) [2023-05-20 16:03:28,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-20 16:03:28,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-20 16:03:28,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-20 16:03:28,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-20 16:03:28,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 16:03:28,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 16:03:28,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:28,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1006465794, now seen corresponding path program 1 times [2023-05-20 16:03:28,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:28,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014112692] [2023-05-20 16:03:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:28,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-20 16:03:28,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-20 16:03:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-20 16:03:28,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-20 16:03:28,434 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-20 16:03:28,434 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-05-20 16:03:28,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-05-20 16:03:28,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-20 16:03:28,435 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-20 16:03:28,436 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2023-05-20 16:03:28,436 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-20 16:03:28,437 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-05-20 16:03:28,475 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-05-20 16:03:28,478 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:28,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-20 16:03:28,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 16:03:28,479 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-20 16:03:28,482 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-20 16:03:28,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of2ForFork1 ======== [2023-05-20 16:03:28,483 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;@51fd78bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 16:03:28,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-20 16:03:28,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2023-05-20 16:03:31,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:03:31,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:03:31,213 INFO L85 PathProgramCache]: Analyzing trace with hash -858749040, now seen corresponding path program 1 times [2023-05-20 16:03:31,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:03:31,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913460064] [2023-05-20 16:03:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:03:31,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:03:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:03:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-05-20 16:03:31,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:03:31,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913460064] [2023-05-20 16:03:31,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913460064] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:03:31,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 16:03:31,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-20 16:03:31,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339690976] [2023-05-20 16:03:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:03:31,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-20 16:03:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:03:31,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-20 16:03:31,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-20 16:03:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:03:31,255 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:03:31,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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) [2023-05-20 16:03:31,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:04:55,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:04:55,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-05-20 16:04:55,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:04:55,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:04:55,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1151131959, now seen corresponding path program 1 times [2023-05-20 16:04:55,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:04:55,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762835236] [2023-05-20 16:04:55,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:04:55,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:04:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:04:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-05-20 16:04:56,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:04:56,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762835236] [2023-05-20 16:04:56,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762835236] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:04:56,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 16:04:56,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-20 16:04:56,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633069221] [2023-05-20 16:04:56,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:04:56,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-20 16:04:56,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:04:56,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-20 16:04:56,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-05-20 16:04:56,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:04:56,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:04:56,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 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) [2023-05-20 16:04:56,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:04:56,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:06:16,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:06:16,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 16:06:16,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-05-20 16:06:16,448 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-20 16:06:16,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 16:06:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1463308130, now seen corresponding path program 1 times [2023-05-20 16:06:16,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 16:06:16,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072292531] [2023-05-20 16:06:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 16:06:16,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 16:06:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 16:06:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-05-20 16:06:16,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 16:06:16,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072292531] [2023-05-20 16:06:16,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072292531] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 16:06:16,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 16:06:16,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-20 16:06:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564363313] [2023-05-20 16:06:16,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 16:06:16,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-20 16:06:16,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 16:06:16,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-20 16:06:16,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-20 16:06:16,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:06:16,565 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 16:06:16,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2023-05-20 16:06:16,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 16:06:16,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 16:06:16,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.