/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 22:04:14,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-19 22:04:14,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-19 22:04:14,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-19 22:04:14,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-19 22:04:14,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-19 22:04:14,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-19 22:04:14,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-19 22:04:14,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-19 22:04:14,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-19 22:04:14,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-19 22:04:14,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-19 22:04:14,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-19 22:04:14,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-19 22:04:14,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-19 22:04:14,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-19 22:04:14,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-19 22:04:14,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-19 22:04:14,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-19 22:04:14,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-19 22:04:14,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-19 22:04:14,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-19 22:04:14,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-19 22:04:14,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-19 22:04:14,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-19 22:04:14,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-19 22:04:14,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-19 22:04:14,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-19 22:04:14,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-19 22:04:14,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-19 22:04:14,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-19 22:04:14,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-19 22:04:14,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-19 22:04:14,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-19 22:04:14,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-19 22:04:14,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-19 22:04:14,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-19 22:04:14,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-19 22:04:14,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-19 22:04:14,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-19 22:04:14,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-19 22:04:14,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 22:04:14,285 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 22:04:14,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 22:04:14,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 22:04:14,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 22:04:14,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 22:04:14,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 22:04:14,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 22:04:14,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 22:04:14,288 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 22:04:14,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 22:04:14,289 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 22:04:14,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 22:04:14,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 22:04:14,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 22:04:14,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 22:04:14,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 22:04:14,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 22:04:14,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 22:04:14,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 22:04:14,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 22:04:14,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 22:04:14,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 22:04:14,292 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 22:04:14,292 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 22:04:14,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 22:04:14,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 22:04:14,293 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 22:04:14,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 22:04:14,293 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 22:04:14,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-19 22:04:14,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 22:04:14,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 22:04:14,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 22:04:14,547 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-19 22:04:14,548 INFO L275 PluginConnector]: CDTParser initialized [2023-05-19 22:04:14,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2023-05-19 22:04:14,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec3f29675/9dec8a5d82e94342b53ffd5e1d2915df/FLAG8460b45f1 [2023-05-19 22:04:15,216 INFO L306 CDTParser]: Found 1 translation units. [2023-05-19 22:04:15,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2023-05-19 22:04:15,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec3f29675/9dec8a5d82e94342b53ffd5e1d2915df/FLAG8460b45f1 [2023-05-19 22:04:15,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec3f29675/9dec8a5d82e94342b53ffd5e1d2915df [2023-05-19 22:04:15,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 22:04:15,378 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-19 22:04:15,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-19 22:04:15,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-19 22:04:15,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-19 22:04:15,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.05 10:04:15" (1/1) ... [2023-05-19 22:04:15,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20557793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:15, skipping insertion in model container [2023-05-19 22:04:15,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.05 10:04:15" (1/1) ... [2023-05-19 22:04:15,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-19 22:04:15,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-19 22:04:16,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i[196530,196543] [2023-05-19 22:04:16,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-19 22:04:16,901 INFO L203 MainTranslator]: Completed pre-run [2023-05-19 22:04:17,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i[196530,196543] [2023-05-19 22:04:17,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-19 22:04:17,402 INFO L208 MainTranslator]: Completed translation [2023-05-19 22:04:17,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17 WrapperNode [2023-05-19 22:04:17,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-19 22:04:17,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 22:04:17,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 22:04:17,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 22:04:17,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,641 INFO L138 Inliner]: procedures = 286, calls = 1704, calls flagged for inlining = 418, calls inlined = 483, statements flattened = 5769 [2023-05-19 22:04:17,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 22:04:17,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 22:04:17,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 22:04:17,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 22:04:17,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,850 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 22:04:17,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 22:04:17,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 22:04:17,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 22:04:17,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (1/1) ... [2023-05-19 22:04:17,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 22:04:17,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 22:04:17,938 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) [2023-05-19 22:04:17,945 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 [2023-05-19 22:04:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-05-19 22:04:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2023-05-19 22:04:17,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2023-05-19 22:04:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-19 22:04:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2023-05-19 22:04:17,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-05-19 22:04:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2023-05-19 22:04:17,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2023-05-19 22:04:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-19 22:04:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 22:04:17,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 22:04:17,976 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-19 22:04:18,602 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 22:04:18,604 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 22:04:22,315 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 22:04:22,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 22:04:22,344 INFO L300 CfgBuilder]: Removed 29 assume(true) statements. [2023-05-19 22:04:22,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 10:04:22 BoogieIcfgContainer [2023-05-19 22:04:22,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 22:04:22,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 22:04:22,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 22:04:22,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 22:04:22,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.05 10:04:15" (1/3) ... [2023-05-19 22:04:22,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc3e6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 10:04:22, skipping insertion in model container [2023-05-19 22:04:22,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.05 10:04:17" (2/3) ... [2023-05-19 22:04:22,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc3e6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 10:04:22, skipping insertion in model container [2023-05-19 22:04:22,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 10:04:22" (3/3) ... [2023-05-19 22:04:22,358 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2023-05-19 22:04:22,365 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 22:04:22,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 22:04:22,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 22:04:22,373 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 22:04:23,389 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-05-19 22:04:23,499 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 22:04:23,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 22:04:23,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 22:04:23,505 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) [2023-05-19 22:04:23,520 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 [2023-05-19 22:04:23,540 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 22:04:23,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ldv_character_driver_scenario_2Thread1of1ForFork1 ======== [2023-05-19 22:04:23,619 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;@2d9a28b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 22:04:23,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-19 22:05:15,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-19 22:05:15,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 22:05:15,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1412977470, now seen corresponding path program 1 times [2023-05-19 22:05:15,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 22:05:15,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653625797] [2023-05-19 22:05:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 22:05:15,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 22:05:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 22:05:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 22:05:17,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 22:05:17,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653625797] [2023-05-19 22:05:17,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653625797] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 22:05:17,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 22:05:17,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-19 22:05:17,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199823122] [2023-05-19 22:05:17,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 22:05:17,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-19 22:05:17,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 22:05:17,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-19 22:05:17,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-19 22:05:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:17,217 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 22:05:17,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1103.0) internal successors, (2206), 2 states have internal predecessors, (2206), 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) [2023-05-19 22:05:17,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:17,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-19 22:05:17,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-19 22:05:17,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 22:05:17,560 INFO L85 PathProgramCache]: Analyzing trace with hash 688923542, now seen corresponding path program 1 times [2023-05-19 22:05:17,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 22:05:17,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289559227] [2023-05-19 22:05:17,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 22:05:17,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 22:05:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 22:05:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 22:05:20,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 22:05:20,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289559227] [2023-05-19 22:05:20,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289559227] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 22:05:20,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 22:05:20,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-19 22:05:20,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650552323] [2023-05-19 22:05:20,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 22:05:20,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 22:05:20,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 22:05:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 22:05:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 22:05:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:20,773 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 22:05:20,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 735.6666666666666) internal successors, (2207), 3 states have internal predecessors, (2207), 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) [2023-05-19 22:05:20,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:20,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:21,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:21,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:21,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-19 22:05:21,130 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-19 22:05:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 22:05:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash 743871837, now seen corresponding path program 1 times [2023-05-19 22:05:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 22:05:21,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840840751] [2023-05-19 22:05:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 22:05:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 22:05:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 22:05:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 22:05:23,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 22:05:23,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840840751] [2023-05-19 22:05:23,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840840751] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 22:05:23,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 22:05:23,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-19 22:05:23,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821910969] [2023-05-19 22:05:23,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 22:05:23,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 22:05:23,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 22:05:23,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 22:05:23,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 22:05:23,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:23,952 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 22:05:23,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 736.3333333333334) internal successors, (2209), 3 states have internal predecessors, (2209), 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) [2023-05-19 22:05:23,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:23,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:23,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:24,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:24,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:24,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-19 22:05:24,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-19 22:05:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 22:05:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2146454336, now seen corresponding path program 1 times [2023-05-19 22:05:24,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 22:05:24,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193751966] [2023-05-19 22:05:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 22:05:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 22:05:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 22:05:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 22:05:26,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 22:05:26,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193751966] [2023-05-19 22:05:26,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193751966] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 22:05:26,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 22:05:26,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-19 22:05:26,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013606778] [2023-05-19 22:05:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 22:05:26,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-19 22:05:26,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 22:05:26,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-19 22:05:26,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-19 22:05:26,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:26,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 22:05:26,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 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) [2023-05-19 22:05:26,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:26,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:26,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:26,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:35,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:35,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:35,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:35,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 22:05:35,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-19 22:05:35,233 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-19 22:05:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 22:05:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1761872102, now seen corresponding path program 1 times [2023-05-19 22:05:35,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 22:05:35,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612071688] [2023-05-19 22:05:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 22:05:35,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 22:05:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 22:05:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-05-19 22:05:37,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 22:05:37,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612071688] [2023-05-19 22:05:37,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612071688] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 22:05:37,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 22:05:37,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-19 22:05:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733872207] [2023-05-19 22:05:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 22:05:37,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 22:05:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 22:05:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 22:05:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 22:05:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:37,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 22:05:37,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 798.6666666666666) internal successors, (2396), 3 states have internal predecessors, (2396), 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) [2023-05-19 22:05:37,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:37,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:37,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:37,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 22:05:37,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 22:05:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:37,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-19 22:05:37,782 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-19 22:05:37,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 22:05:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1157193527, now seen corresponding path program 1 times [2023-05-19 22:05:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 22:05:37,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384280475] [2023-05-19 22:05:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 22:05:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 22:05:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 22:05:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2023-05-19 22:05:42,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 22:05:42,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384280475] [2023-05-19 22:05:42,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384280475] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 22:05:42,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 22:05:42,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-19 22:05:42,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519515548] [2023-05-19 22:05:42,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 22:05:42,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-19 22:05:42,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 22:05:42,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-19 22:05:42,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-19 22:05:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:42,848 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 22:05:42,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 354.57142857142856) internal successors, (2482), 7 states have internal predecessors, (2482), 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) [2023-05-19 22:05:42,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 22:05:42,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:42,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:42,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 22:05:42,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 22:05:42,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.