/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:08:58,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:08:58,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:08:58,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:08:58,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:08:58,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:08:58,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:08:58,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:08:58,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:08:58,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:08:58,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:08:58,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:08:58,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:08:58,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:08:58,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:08:58,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:08:58,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:08:58,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:08:58,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:08:58,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:08:58,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:08:58,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:08:58,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:08:58,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:08:58,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:08:58,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:08:58,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:08:58,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:08:58,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:08:58,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:08:58,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:08:58,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:08:58,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:08:58,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:08:58,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:08:58,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:08:58,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:08:58,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:08:58,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:08:58,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:08:58,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:08:58,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 19:08:58,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:08:58,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:08:58,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:08:58,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:08:58,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:08:58,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:08:58,334 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:08:58,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:08:58,335 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:08:58,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:08:58,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:08:58,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:08:58,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:08:58,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:08:58,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:08:58,336 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:08:58,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:08:58,336 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:08:58,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:08:58,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:08:58,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:08:58,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:08:58,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:08:58,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:08:58,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:08:58,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:08:58,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:08:58,338 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:08:58,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:08:58,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:08:58,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:08:58,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:08:58,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:08:58,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:08:58,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:08:58,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:08:58,674 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:08:58,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2022-12-11 19:08:59,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:09:00,030 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:09:00,031 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2022-12-11 19:09:00,043 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb373de8b/fac73054112a4ea3ab65c3ca0d23466f/FLAG1b9677baa [2022-12-11 19:09:00,058 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb373de8b/fac73054112a4ea3ab65c3ca0d23466f [2022-12-11 19:09:00,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:09:00,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:09:00,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:09:00,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:09:00,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:09:00,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4475aa8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00, skipping insertion in model container [2022-12-11 19:09:00,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:09:00,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:09:00,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958] [2022-12-11 19:09:00,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:09:00,501 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:09:00,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958] [2022-12-11 19:09:00,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:00,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:00,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:09:00,603 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:09:00,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00 WrapperNode [2022-12-11 19:09:00,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:09:00,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:09:00,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:09:00,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:09:00,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,650 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-11 19:09:00,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:09:00,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:09:00,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:09:00,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:09:00,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:09:00,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:09:00,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:09:00,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:09:00,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (1/1) ... [2022-12-11 19:09:00,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:09:00,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:09:00,720 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) [2022-12-11 19:09:00,740 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 [2022-12-11 19:09:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:09:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:09:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:09:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:09:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:09:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:09:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:09:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:09:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:09:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 19:09:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 19:09:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:09:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:09:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:09:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:09:00,760 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:09:00,928 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:09:00,929 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:09:01,072 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:09:01,080 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:09:01,081 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:09:01,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:09:01 BoogieIcfgContainer [2022-12-11 19:09:01,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:09:01,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:09:01,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:09:01,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:09:01,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:09:00" (1/3) ... [2022-12-11 19:09:01,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422a8a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:09:01, skipping insertion in model container [2022-12-11 19:09:01,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:00" (2/3) ... [2022-12-11 19:09:01,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422a8a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:09:01, skipping insertion in model container [2022-12-11 19:09:01,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:09:01" (3/3) ... [2022-12-11 19:09:01,091 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2022-12-11 19:09:01,106 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:09:01,106 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:09:01,107 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:09:01,173 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:09:01,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 19:09:01,239 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-11 19:09:01,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:09:01,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 19:09:01,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 19:09:01,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-11 19:09:01,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:09:01,260 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=false, mAutomataTypeConcurrency=PETRI_NET, 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;@5098f6bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:09:01,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:09:01,281 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-11 19:09:01,282 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:09:01,282 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:01,283 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:01,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:01,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:01,287 INFO L85 PathProgramCache]: Analyzing trace with hash -944742546, now seen corresponding path program 1 times [2022-12-11 19:09:01,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:01,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103057694] [2022-12-11 19:09:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:02,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:02,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:02,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103057694] [2022-12-11 19:09:02,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103057694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:02,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:02,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:09:02,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103947485] [2022-12-11 19:09:02,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:02,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:09:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:02,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:09:02,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:09:02,120 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2022-12-11 19:09:02,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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) [2022-12-11 19:09:02,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:02,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2022-12-11 19:09:02,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:02,354 INFO L130 PetriNetUnfolder]: 199/636 cut-off events. [2022-12-11 19:09:02,354 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-11 19:09:02,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 636 events. 199/636 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3854 event pairs, 32 based on Foata normal form. 22/639 useless extension candidates. Maximal degree in co-relation 993. Up to 151 conditions per place. [2022-12-11 19:09:02,360 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 18 selfloop transitions, 7 changer transitions 31/109 dead transitions. [2022-12-11 19:09:02,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 109 transitions, 342 flow [2022-12-11 19:09:02,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 19:09:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 19:09:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 645 transitions. [2022-12-11 19:09:02,374 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8431372549019608 [2022-12-11 19:09:02,375 INFO L175 Difference]: Start difference. First operand has 79 places, 70 transitions, 149 flow. Second operand 9 states and 645 transitions. [2022-12-11 19:09:02,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 109 transitions, 342 flow [2022-12-11 19:09:02,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 109 transitions, 338 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:09:02,382 INFO L231 Difference]: Finished difference. Result has 92 places, 73 transitions, 226 flow [2022-12-11 19:09:02,383 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=226, PETRI_PLACES=92, PETRI_TRANSITIONS=73} [2022-12-11 19:09:02,387 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 13 predicate places. [2022-12-11 19:09:02,387 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 73 transitions, 226 flow [2022-12-11 19:09:02,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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) [2022-12-11 19:09:02,388 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:02,388 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:02,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:09:02,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:02,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:02,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2069355187, now seen corresponding path program 1 times [2022-12-11 19:09:02,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:02,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203937802] [2022-12-11 19:09:02,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:02,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:02,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:02,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203937802] [2022-12-11 19:09:02,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203937802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:02,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:02,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:09:02,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859203660] [2022-12-11 19:09:02,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:02,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:09:02,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:02,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:09:02,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:09:02,621 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2022-12-11 19:09:02,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 73 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 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) [2022-12-11 19:09:02,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:02,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2022-12-11 19:09:02,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:02,788 INFO L130 PetriNetUnfolder]: 60/281 cut-off events. [2022-12-11 19:09:02,789 INFO L131 PetriNetUnfolder]: For 432/486 co-relation queries the response was YES. [2022-12-11 19:09:02,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 281 events. 60/281 cut-off events. For 432/486 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1333 event pairs, 20 based on Foata normal form. 17/284 useless extension candidates. Maximal degree in co-relation 712. Up to 86 conditions per place. [2022-12-11 19:09:02,794 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 9 selfloop transitions, 3 changer transitions 13/86 dead transitions. [2022-12-11 19:09:02,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 86 transitions, 356 flow [2022-12-11 19:09:02,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 19:09:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 19:09:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 653 transitions. [2022-12-11 19:09:02,798 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.85359477124183 [2022-12-11 19:09:02,798 INFO L175 Difference]: Start difference. First operand has 92 places, 73 transitions, 226 flow. Second operand 9 states and 653 transitions. [2022-12-11 19:09:02,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 86 transitions, 356 flow [2022-12-11 19:09:02,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 314 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-12-11 19:09:02,807 INFO L231 Difference]: Finished difference. Result has 99 places, 73 transitions, 227 flow [2022-12-11 19:09:02,808 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=227, PETRI_PLACES=99, PETRI_TRANSITIONS=73} [2022-12-11 19:09:02,809 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2022-12-11 19:09:02,809 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 73 transitions, 227 flow [2022-12-11 19:09:02,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 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) [2022-12-11 19:09:02,810 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:02,810 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:02,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:09:02,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:02,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:02,811 INFO L85 PathProgramCache]: Analyzing trace with hash -369278161, now seen corresponding path program 1 times [2022-12-11 19:09:02,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:02,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406325625] [2022-12-11 19:09:02,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:02,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:03,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:03,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406325625] [2022-12-11 19:09:03,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406325625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:03,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:03,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:09:03,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831726591] [2022-12-11 19:09:03,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:03,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:09:03,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:03,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:09:03,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:09:03,027 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 85 [2022-12-11 19:09:03,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 73 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-12-11 19:09:03,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:03,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 85 [2022-12-11 19:09:03,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:03,200 INFO L130 PetriNetUnfolder]: 83/363 cut-off events. [2022-12-11 19:09:03,201 INFO L131 PetriNetUnfolder]: For 609/631 co-relation queries the response was YES. [2022-12-11 19:09:03,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 363 events. 83/363 cut-off events. For 609/631 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1950 event pairs, 31 based on Foata normal form. 13/366 useless extension candidates. Maximal degree in co-relation 941. Up to 85 conditions per place. [2022-12-11 19:09:03,204 INFO L137 encePairwiseOnDemand]: 78/85 looper letters, 14 selfloop transitions, 5 changer transitions 22/100 dead transitions. [2022-12-11 19:09:03,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 100 transitions, 473 flow [2022-12-11 19:09:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 19:09:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 19:09:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 658 transitions. [2022-12-11 19:09:03,207 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8601307189542484 [2022-12-11 19:09:03,207 INFO L175 Difference]: Start difference. First operand has 99 places, 73 transitions, 227 flow. Second operand 9 states and 658 transitions. [2022-12-11 19:09:03,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 100 transitions, 473 flow [2022-12-11 19:09:03,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 100 transitions, 429 flow, removed 19 selfloop flow, removed 11 redundant places. [2022-12-11 19:09:03,214 INFO L231 Difference]: Finished difference. Result has 97 places, 76 transitions, 264 flow [2022-12-11 19:09:03,214 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=97, PETRI_TRANSITIONS=76} [2022-12-11 19:09:03,215 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2022-12-11 19:09:03,215 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 76 transitions, 264 flow [2022-12-11 19:09:03,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-12-11 19:09:03,215 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:03,216 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:03,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:09:03,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:03,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1095948978, now seen corresponding path program 1 times [2022-12-11 19:09:03,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:03,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558379995] [2022-12-11 19:09:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:03,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:03,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:03,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558379995] [2022-12-11 19:09:03,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558379995] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:03,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:03,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:09:03,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858453507] [2022-12-11 19:09:03,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:03,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:09:03,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:03,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:09:03,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:09:03,446 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 19:09:03,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 76 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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) [2022-12-11 19:09:03,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:03,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 19:09:03,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:03,613 INFO L130 PetriNetUnfolder]: 79/361 cut-off events. [2022-12-11 19:09:03,614 INFO L131 PetriNetUnfolder]: For 906/1074 co-relation queries the response was YES. [2022-12-11 19:09:03,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 361 events. 79/361 cut-off events. For 906/1074 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1952 event pairs, 37 based on Foata normal form. 16/359 useless extension candidates. Maximal degree in co-relation 1002. Up to 73 conditions per place. [2022-12-11 19:09:03,617 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 10 selfloop transitions, 5 changer transitions 16/90 dead transitions. [2022-12-11 19:09:03,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 90 transitions, 392 flow [2022-12-11 19:09:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:09:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:09:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2022-12-11 19:09:03,619 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8329411764705882 [2022-12-11 19:09:03,619 INFO L175 Difference]: Start difference. First operand has 97 places, 76 transitions, 264 flow. Second operand 10 states and 708 transitions. [2022-12-11 19:09:03,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 90 transitions, 392 flow [2022-12-11 19:09:03,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 371 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-12-11 19:09:03,626 INFO L231 Difference]: Finished difference. Result has 104 places, 73 transitions, 250 flow [2022-12-11 19:09:03,627 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=250, PETRI_PLACES=104, PETRI_TRANSITIONS=73} [2022-12-11 19:09:03,628 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 25 predicate places. [2022-12-11 19:09:03,628 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 73 transitions, 250 flow [2022-12-11 19:09:03,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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) [2022-12-11 19:09:03,629 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:03,630 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:03,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:09:03,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1307429560, now seen corresponding path program 1 times [2022-12-11 19:09:03,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:03,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739923313] [2022-12-11 19:09:03,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:03,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:03,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:03,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739923313] [2022-12-11 19:09:03,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739923313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:03,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:03,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:09:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29298126] [2022-12-11 19:09:03,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:03,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:09:03,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:09:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:09:03,817 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 19:09:03,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 73 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2022-12-11 19:09:03,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:03,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 19:09:03,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:03,993 INFO L130 PetriNetUnfolder]: 324/871 cut-off events. [2022-12-11 19:09:03,993 INFO L131 PetriNetUnfolder]: For 674/699 co-relation queries the response was YES. [2022-12-11 19:09:03,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1892 conditions, 871 events. 324/871 cut-off events. For 674/699 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6095 event pairs, 60 based on Foata normal form. 1/799 useless extension candidates. Maximal degree in co-relation 1838. Up to 213 conditions per place. [2022-12-11 19:09:04,001 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 26 selfloop transitions, 15 changer transitions 5/105 dead transitions. [2022-12-11 19:09:04,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 105 transitions, 410 flow [2022-12-11 19:09:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:09:04,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:09:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2022-12-11 19:09:04,004 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8564705882352941 [2022-12-11 19:09:04,004 INFO L175 Difference]: Start difference. First operand has 104 places, 73 transitions, 250 flow. Second operand 10 states and 728 transitions. [2022-12-11 19:09:04,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 105 transitions, 410 flow [2022-12-11 19:09:04,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 376 flow, removed 11 selfloop flow, removed 10 redundant places. [2022-12-11 19:09:04,009 INFO L231 Difference]: Finished difference. Result has 103 places, 86 transitions, 325 flow [2022-12-11 19:09:04,009 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=325, PETRI_PLACES=103, PETRI_TRANSITIONS=86} [2022-12-11 19:09:04,010 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2022-12-11 19:09:04,010 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 86 transitions, 325 flow [2022-12-11 19:09:04,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2022-12-11 19:09:04,011 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:04,011 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:04,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:09:04,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:04,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:04,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1997052371, now seen corresponding path program 1 times [2022-12-11 19:09:04,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:04,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390721620] [2022-12-11 19:09:04,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:04,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:04,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:04,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390721620] [2022-12-11 19:09:04,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390721620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:04,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:04,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:09:04,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409166252] [2022-12-11 19:09:04,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:04,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:09:04,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:04,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:09:04,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:09:04,172 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 19:09:04,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 86 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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) [2022-12-11 19:09:04,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:04,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 19:09:04,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:04,409 INFO L130 PetriNetUnfolder]: 291/776 cut-off events. [2022-12-11 19:09:04,409 INFO L131 PetriNetUnfolder]: For 1826/2144 co-relation queries the response was YES. [2022-12-11 19:09:04,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 776 events. 291/776 cut-off events. For 1826/2144 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5405 event pairs, 7 based on Foata normal form. 64/790 useless extension candidates. Maximal degree in co-relation 2635. Up to 307 conditions per place. [2022-12-11 19:09:04,415 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 26 selfloop transitions, 28 changer transitions 11/124 dead transitions. [2022-12-11 19:09:04,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 124 transitions, 691 flow [2022-12-11 19:09:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:09:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:09:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 945 transitions. [2022-12-11 19:09:04,418 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8552036199095022 [2022-12-11 19:09:04,419 INFO L175 Difference]: Start difference. First operand has 103 places, 86 transitions, 325 flow. Second operand 13 states and 945 transitions. [2022-12-11 19:09:04,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 124 transitions, 691 flow [2022-12-11 19:09:04,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 124 transitions, 689 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-11 19:09:04,428 INFO L231 Difference]: Finished difference. Result has 120 places, 103 transitions, 549 flow [2022-12-11 19:09:04,429 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=549, PETRI_PLACES=120, PETRI_TRANSITIONS=103} [2022-12-11 19:09:04,431 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 41 predicate places. [2022-12-11 19:09:04,431 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 103 transitions, 549 flow [2022-12-11 19:09:04,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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) [2022-12-11 19:09:04,432 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:04,432 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:04,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:09:04,432 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:04,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:04,435 INFO L85 PathProgramCache]: Analyzing trace with hash -715271984, now seen corresponding path program 1 times [2022-12-11 19:09:04,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:04,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673126984] [2022-12-11 19:09:04,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:04,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:04,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:04,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673126984] [2022-12-11 19:09:04,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673126984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:04,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:04,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:09:04,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007017209] [2022-12-11 19:09:04,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:04,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:09:04,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:04,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:09:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:09:04,636 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 19:09:04,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 103 transitions, 549 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2022-12-11 19:09:04,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:04,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 19:09:04,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:04,913 INFO L130 PetriNetUnfolder]: 207/651 cut-off events. [2022-12-11 19:09:04,913 INFO L131 PetriNetUnfolder]: For 3105/3757 co-relation queries the response was YES. [2022-12-11 19:09:04,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 651 events. 207/651 cut-off events. For 3105/3757 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4726 event pairs, 0 based on Foata normal form. 78/683 useless extension candidates. Maximal degree in co-relation 2809. Up to 231 conditions per place. [2022-12-11 19:09:04,919 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 22 selfloop transitions, 32 changer transitions 19/132 dead transitions. [2022-12-11 19:09:04,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 132 transitions, 889 flow [2022-12-11 19:09:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 19:09:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 19:09:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1146 transitions. [2022-12-11 19:09:04,922 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8426470588235294 [2022-12-11 19:09:04,922 INFO L175 Difference]: Start difference. First operand has 120 places, 103 transitions, 549 flow. Second operand 16 states and 1146 transitions. [2022-12-11 19:09:04,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 132 transitions, 889 flow [2022-12-11 19:09:04,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 132 transitions, 792 flow, removed 40 selfloop flow, removed 11 redundant places. [2022-12-11 19:09:04,938 INFO L231 Difference]: Finished difference. Result has 131 places, 104 transitions, 566 flow [2022-12-11 19:09:04,938 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=566, PETRI_PLACES=131, PETRI_TRANSITIONS=104} [2022-12-11 19:09:04,939 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 52 predicate places. [2022-12-11 19:09:04,939 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 104 transitions, 566 flow [2022-12-11 19:09:04,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2022-12-11 19:09:04,939 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:04,939 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:04,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:09:04,940 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:09:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1587808366, now seen corresponding path program 1 times [2022-12-11 19:09:04,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:04,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804710328] [2022-12-11 19:09:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:04,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:05,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:09:05,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:05,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804710328] [2022-12-11 19:09:05,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804710328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:05,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:05,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:09:05,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838311694] [2022-12-11 19:09:05,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:05,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:09:05,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:05,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:09:05,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:09:05,125 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 19:09:05,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 104 transitions, 566 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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) [2022-12-11 19:09:05,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:05,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 19:09:05,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:05,249 INFO L130 PetriNetUnfolder]: 135/672 cut-off events. [2022-12-11 19:09:05,249 INFO L131 PetriNetUnfolder]: For 1954/2026 co-relation queries the response was YES. [2022-12-11 19:09:05,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2250 conditions, 672 events. 135/672 cut-off events. For 1954/2026 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5539 event pairs, 0 based on Foata normal form. 2/642 useless extension candidates. Maximal degree in co-relation 2194. Up to 103 conditions per place. [2022-12-11 19:09:05,254 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 0 selfloop transitions, 0 changer transitions 105/105 dead transitions. [2022-12-11 19:09:05,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 105 transitions, 606 flow [2022-12-11 19:09:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:09:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:09:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 492 transitions. [2022-12-11 19:09:05,256 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.826890756302521 [2022-12-11 19:09:05,256 INFO L175 Difference]: Start difference. First operand has 131 places, 104 transitions, 566 flow. Second operand 7 states and 492 transitions. [2022-12-11 19:09:05,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 105 transitions, 606 flow [2022-12-11 19:09:05,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 105 transitions, 509 flow, removed 15 selfloop flow, removed 15 redundant places. [2022-12-11 19:09:05,270 INFO L231 Difference]: Finished difference. Result has 117 places, 0 transitions, 0 flow [2022-12-11 19:09:05,271 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=117, PETRI_TRANSITIONS=0} [2022-12-11 19:09:05,273 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 38 predicate places. [2022-12-11 19:09:05,273 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 0 transitions, 0 flow [2022-12-11 19:09:05,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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) [2022-12-11 19:09:05,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 19:09:05,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 19:09:05,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 19:09:05,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 19:09:05,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:09:05,277 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:09:05,280 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:09:05,280 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:09:05,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:09:05 BasicIcfg [2022-12-11 19:09:05,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:09:05,289 INFO L158 Benchmark]: Toolchain (without parser) took 5225.37ms. Allocated memory was 188.7MB in the beginning and 248.5MB in the end (delta: 59.8MB). Free memory was 154.0MB in the beginning and 112.3MB in the end (delta: 41.8MB). Peak memory consumption was 102.6MB. Max. memory is 8.0GB. [2022-12-11 19:09:05,289 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 188.7MB. Free memory is still 166.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:09:05,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.73ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 130.8MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 19:09:05,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.02ms. Allocated memory is still 188.7MB. Free memory was 130.8MB in the beginning and 128.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:09:05,290 INFO L158 Benchmark]: Boogie Preprocessor took 39.78ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 127.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 19:09:05,290 INFO L158 Benchmark]: RCFGBuilder took 391.70ms. Allocated memory is still 188.7MB. Free memory was 127.3MB in the beginning and 113.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 19:09:05,290 INFO L158 Benchmark]: TraceAbstraction took 4200.42ms. Allocated memory was 188.7MB in the beginning and 248.5MB in the end (delta: 59.8MB). Free memory was 112.1MB in the beginning and 112.3MB in the end (delta: -170.8kB). Peak memory consumption was 60.6MB. Max. memory is 8.0GB. [2022-12-11 19:09:05,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 188.7MB. Free memory is still 166.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 541.73ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 130.8MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.02ms. Allocated memory is still 188.7MB. Free memory was 130.8MB in the beginning and 128.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.78ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 127.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 391.70ms. Allocated memory is still 188.7MB. Free memory was 127.3MB in the beginning and 113.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4200.42ms. Allocated memory was 188.7MB in the beginning and 248.5MB in the end (delta: 59.8MB). Free memory was 112.1MB in the beginning and 112.3MB in the end (delta: -170.8kB). Peak memory consumption was 60.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 324 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 303 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 227 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 443 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 76 mSDtfsCounter, 443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=566occurred in iteration=7, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 439 NumberOfCodeBlocks, 439 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 431 ConstructedInterpolants, 0 QuantifiedInterpolants, 1557 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:09:05,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...