/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:06:19,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:06:19,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:06:19,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:06:19,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:06:19,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:06:19,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:06:19,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:06:19,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:06:19,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:06:19,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:06:19,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:06:19,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:06:19,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:06:19,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:06:19,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:06:19,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:06:19,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:06:19,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:06:19,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:06:19,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:06:19,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:06:19,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:06:19,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:06:19,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:06:19,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:06:19,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:06:19,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:06:19,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:06:19,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:06:19,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:06:19,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:06:19,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:06:19,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:06:19,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:06:19,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:06:19,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:06:19,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:06:19,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:06:19,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:06:19,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:06:19,262 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:06:19,293 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:06:19,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:06:19,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:06:19,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:06:19,295 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:06:19,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:06:19,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:06:19,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:06:19,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:06:19,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:06:19,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:06:19,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:06:19,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:06:19,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:06:19,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:06:19,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:06:19,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:06:19,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:06:19,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:06:19,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:06:19,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:06:19,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:19,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:06:19,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:06:19,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:06:19,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:06:19,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:06:19,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:06:19,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:06:19,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:06:19,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:06:19,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:06:19,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:06:19,666 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:06:19,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2022-12-06 04:06:20,834 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:06:21,173 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:06:21,174 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2022-12-06 04:06:21,185 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792ea3020/0e33c66ec639417280fa1c1376a6d878/FLAG451e662d7 [2022-12-06 04:06:21,200 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792ea3020/0e33c66ec639417280fa1c1376a6d878 [2022-12-06 04:06:21,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:06:21,203 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:06:21,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:21,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:06:21,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:06:21,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b479a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21, skipping insertion in model container [2022-12-06 04:06:21,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:06:21,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:06:21,455 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 04:06:21,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,593 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-atomic/dekker.i[31403,31416] [2022-12-06 04:06:21,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,609 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-atomic/dekker.i[32483,32496] [2022-12-06 04:06:21,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:21,626 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:06:21,641 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 04:06:21,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,661 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-atomic/dekker.i[31403,31416] [2022-12-06 04:06:21,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,675 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-atomic/dekker.i[32483,32496] [2022-12-06 04:06:21,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:06:21,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:06:21,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:21,719 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:06:21,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21 WrapperNode [2022-12-06 04:06:21,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:21,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:21,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:06:21,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:06:21,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,778 INFO L138 Inliner]: procedures = 172, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2022-12-06 04:06:21,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:21,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:06:21,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:06:21,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:06:21,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,815 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:06:21,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:06:21,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:06:21,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:06:21,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (1/1) ... [2022-12-06 04:06:21,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:06:21,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 04:06:21,888 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 [2022-12-06 04:06:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 04:06:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-06 04:06:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-06 04:06:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-06 04:06:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:06:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:06:21,909 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:06:22,078 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:06:22,080 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:06:22,224 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:06:22,235 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:06:22,235 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 04:06:22,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:22 BoogieIcfgContainer [2022-12-06 04:06:22,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:06:22,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:06:22,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:06:22,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:06:22,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:06:21" (1/3) ... [2022-12-06 04:06:22,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f82db90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:22, skipping insertion in model container [2022-12-06 04:06:22,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:21" (2/3) ... [2022-12-06 04:06:22,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f82db90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:22, skipping insertion in model container [2022-12-06 04:06:22,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:22" (3/3) ... [2022-12-06 04:06:22,246 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2022-12-06 04:06:22,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:06:22,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 04:06:22,263 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:06:22,341 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 04:06:22,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 216 flow [2022-12-06 04:06:22,426 INFO L130 PetriNetUnfolder]: 13/98 cut-off events. [2022-12-06 04:06:22,426 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:22,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 98 events. 13/98 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-06 04:06:22,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 100 transitions, 216 flow [2022-12-06 04:06:22,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 89 transitions, 187 flow [2022-12-06 04:06:22,439 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:22,458 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 89 transitions, 187 flow [2022-12-06 04:06:22,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 89 transitions, 187 flow [2022-12-06 04:06:22,490 INFO L130 PetriNetUnfolder]: 13/89 cut-off events. [2022-12-06 04:06:22,490 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:06:22,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 89 events. 13/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-06 04:06:22,494 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 89 transitions, 187 flow [2022-12-06 04:06:22,494 INFO L188 LiptonReduction]: Number of co-enabled transitions 2132 [2022-12-06 04:06:24,920 INFO L203 LiptonReduction]: Total number of compositions: 62 [2022-12-06 04:06:24,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:06:24,943 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=REPEATED_LIPTON_PN, 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;@1b49e9f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:06:24,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-06 04:06:24,949 INFO L130 PetriNetUnfolder]: 2/16 cut-off events. [2022-12-06 04:06:24,949 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:06:24,949 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:24,950 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 04:06:24,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:06:24,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash -908336825, now seen corresponding path program 1 times [2022-12-06 04:06:24,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:24,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971705318] [2022-12-06 04:06:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:06:25,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:25,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971705318] [2022-12-06 04:06:25,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971705318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:25,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:25,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:06:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890383370] [2022-12-06 04:06:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:25,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:06:25,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:25,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:06:25,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:06:25,219 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2022-12-06 04:06:25,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-06 04:06:25,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:25,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2022-12-06 04:06:25,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:25,393 INFO L130 PetriNetUnfolder]: 498/826 cut-off events. [2022-12-06 04:06:25,393 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-12-06 04:06:25,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 826 events. 498/826 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3951 event pairs, 172 based on Foata normal form. 21/572 useless extension candidates. Maximal degree in co-relation 1454. Up to 482 conditions per place. [2022-12-06 04:06:25,401 INFO L137 encePairwiseOnDemand]: 29/37 looper letters, 35 selfloop transitions, 5 changer transitions 1/49 dead transitions. [2022-12-06 04:06:25,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 192 flow [2022-12-06 04:06:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:06:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:06:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2022-12-06 04:06:25,413 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6216216216216216 [2022-12-06 04:06:25,414 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 83 flow. Second operand 3 states and 69 transitions. [2022-12-06 04:06:25,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 192 flow [2022-12-06 04:06:25,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 49 transitions, 185 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 04:06:25,422 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 104 flow [2022-12-06 04:06:25,424 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2022-12-06 04:06:25,427 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2022-12-06 04:06:25,427 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:06:25,428 INFO L89 Accepts]: Start accepts. Operand has 37 places, 37 transitions, 104 flow [2022-12-06 04:06:25,430 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:06:25,430 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:25,431 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions, 104 flow [2022-12-06 04:06:25,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions, 104 flow [2022-12-06 04:06:25,438 INFO L130 PetriNetUnfolder]: 6/58 cut-off events. [2022-12-06 04:06:25,438 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 04:06:25,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 58 events. 6/58 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 227 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 78. Up to 9 conditions per place. [2022-12-06 04:06:25,439 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 37 transitions, 104 flow [2022-12-06 04:06:25,439 INFO L188 LiptonReduction]: Number of co-enabled transitions 530 [2022-12-06 04:06:25,464 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:06:25,465 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 38 [2022-12-06 04:06:25,466 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 104 flow [2022-12-06 04:06:25,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-06 04:06:25,466 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:25,466 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:25,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:06:25,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:06:25,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:25,467 INFO L85 PathProgramCache]: Analyzing trace with hash -523804899, now seen corresponding path program 1 times [2022-12-06 04:06:25,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:25,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115924614] [2022-12-06 04:06:25,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:25,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:25,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:06:25,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:25,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115924614] [2022-12-06 04:06:25,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115924614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:25,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:25,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:06:25,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986440593] [2022-12-06 04:06:25,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:25,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:06:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:06:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:06:25,528 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 35 [2022-12-06 04:06:25,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-06 04:06:25,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:25,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 35 [2022-12-06 04:06:25,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:25,623 INFO L130 PetriNetUnfolder]: 455/758 cut-off events. [2022-12-06 04:06:25,623 INFO L131 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2022-12-06 04:06:25,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 758 events. 455/758 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3574 event pairs, 172 based on Foata normal form. 24/587 useless extension candidates. Maximal degree in co-relation 941. Up to 475 conditions per place. [2022-12-06 04:06:25,628 INFO L137 encePairwiseOnDemand]: 30/35 looper letters, 32 selfloop transitions, 4 changer transitions 4/48 dead transitions. [2022-12-06 04:06:25,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 48 transitions, 207 flow [2022-12-06 04:06:25,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:06:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:06:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-12-06 04:06:25,630 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2022-12-06 04:06:25,630 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 104 flow. Second operand 3 states and 65 transitions. [2022-12-06 04:06:25,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 48 transitions, 207 flow [2022-12-06 04:06:25,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 48 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:06:25,632 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 108 flow [2022-12-06 04:06:25,632 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2022-12-06 04:06:25,633 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2022-12-06 04:06:25,633 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:06:25,633 INFO L89 Accepts]: Start accepts. Operand has 39 places, 37 transitions, 108 flow [2022-12-06 04:06:25,634 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:06:25,634 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:25,634 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 37 transitions, 108 flow [2022-12-06 04:06:25,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 37 transitions, 108 flow [2022-12-06 04:06:25,639 INFO L130 PetriNetUnfolder]: 6/57 cut-off events. [2022-12-06 04:06:25,639 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 04:06:25,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 57 events. 6/57 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 212 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 83. Up to 9 conditions per place. [2022-12-06 04:06:25,640 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 37 transitions, 108 flow [2022-12-06 04:06:25,640 INFO L188 LiptonReduction]: Number of co-enabled transitions 506 [2022-12-06 04:06:25,644 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:06:25,645 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 04:06:25,645 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 108 flow [2022-12-06 04:06:25,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-06 04:06:25,646 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:25,646 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:25,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:06:25,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:06:25,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:25,647 INFO L85 PathProgramCache]: Analyzing trace with hash -537122980, now seen corresponding path program 1 times [2022-12-06 04:06:25,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:25,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603333118] [2022-12-06 04:06:25,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:25,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:06:25,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:25,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603333118] [2022-12-06 04:06:25,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603333118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:25,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:25,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:06:25,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612713216] [2022-12-06 04:06:25,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:25,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:06:25,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:25,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:06:25,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:06:25,754 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 35 [2022-12-06 04:06:25,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-06 04:06:25,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:25,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 35 [2022-12-06 04:06:25,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:25,936 INFO L130 PetriNetUnfolder]: 628/1037 cut-off events. [2022-12-06 04:06:25,937 INFO L131 PetriNetUnfolder]: For 226/226 co-relation queries the response was YES. [2022-12-06 04:06:25,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 1037 events. 628/1037 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5104 event pairs, 123 based on Foata normal form. 18/811 useless extension candidates. Maximal degree in co-relation 1613. Up to 345 conditions per place. [2022-12-06 04:06:25,943 INFO L137 encePairwiseOnDemand]: 26/35 looper letters, 51 selfloop transitions, 11 changer transitions 8/76 dead transitions. [2022-12-06 04:06:25,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 76 transitions, 345 flow [2022-12-06 04:06:25,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:06:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:06:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2022-12-06 04:06:25,945 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5828571428571429 [2022-12-06 04:06:25,945 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 108 flow. Second operand 5 states and 102 transitions. [2022-12-06 04:06:25,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 76 transitions, 345 flow [2022-12-06 04:06:25,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 76 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:06:25,949 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 170 flow [2022-12-06 04:06:25,949 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2022-12-06 04:06:25,950 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2022-12-06 04:06:25,950 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:06:25,950 INFO L89 Accepts]: Start accepts. Operand has 45 places, 43 transitions, 170 flow [2022-12-06 04:06:25,951 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:06:25,951 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:25,951 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 43 transitions, 170 flow [2022-12-06 04:06:25,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 170 flow [2022-12-06 04:06:25,958 INFO L130 PetriNetUnfolder]: 27/87 cut-off events. [2022-12-06 04:06:25,958 INFO L131 PetriNetUnfolder]: For 35/43 co-relation queries the response was YES. [2022-12-06 04:06:25,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 87 events. 27/87 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 282 event pairs, 1 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 166. Up to 21 conditions per place. [2022-12-06 04:06:25,959 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 43 transitions, 170 flow [2022-12-06 04:06:25,959 INFO L188 LiptonReduction]: Number of co-enabled transitions 430 [2022-12-06 04:06:26,124 INFO L203 LiptonReduction]: Total number of compositions: 4 [2022-12-06 04:06:26,126 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 176 [2022-12-06 04:06:26,126 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 164 flow [2022-12-06 04:06:26,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-06 04:06:26,126 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:26,126 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:26,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:06:26,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:06:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1092506704, now seen corresponding path program 2 times [2022-12-06 04:06:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:26,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273309308] [2022-12-06 04:06:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:26,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:06:26,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:26,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273309308] [2022-12-06 04:06:26,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273309308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:26,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:26,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:06:26,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029929122] [2022-12-06 04:06:26,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:26,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:06:26,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:26,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:06:26,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:06:26,222 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2022-12-06 04:06:26,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-12-06 04:06:26,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:26,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2022-12-06 04:06:26,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:26,358 INFO L130 PetriNetUnfolder]: 626/951 cut-off events. [2022-12-06 04:06:26,359 INFO L131 PetriNetUnfolder]: For 677/681 co-relation queries the response was YES. [2022-12-06 04:06:26,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 951 events. 626/951 cut-off events. For 677/681 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3860 event pairs, 82 based on Foata normal form. 34/863 useless extension candidates. Maximal degree in co-relation 1798. Up to 280 conditions per place. [2022-12-06 04:06:26,362 INFO L137 encePairwiseOnDemand]: 25/34 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2022-12-06 04:06:26,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 78 transitions, 452 flow [2022-12-06 04:06:26,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:06:26,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:06:26,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2022-12-06 04:06:26,366 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5058823529411764 [2022-12-06 04:06:26,366 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 164 flow. Second operand 5 states and 86 transitions. [2022-12-06 04:06:26,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 78 transitions, 452 flow [2022-12-06 04:06:26,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 78 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:06:26,370 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2022-12-06 04:06:26,370 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2022-12-06 04:06:26,371 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2022-12-06 04:06:26,371 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:26,371 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2022-12-06 04:06:26,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:26,372 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:06:26,372 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:06:26,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 04:06:26,372 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:26,372 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:06:26,372 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:06:26,373 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 04:06:26,373 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:26,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-12-06 04:06:26,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-06 04:06:26,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-06 04:06:26,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-06 04:06:26,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-06 04:06:26,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-06 04:06:26,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-06 04:06:26,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:06:26,382 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-06 04:06:26,387 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:06:26,387 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:06:26,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:06:26 BasicIcfg [2022-12-06 04:06:26,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:06:26,393 INFO L158 Benchmark]: Toolchain (without parser) took 5190.22ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 153.1MB in the beginning and 101.5MB in the end (delta: 51.6MB). Peak memory consumption was 88.3MB. Max. memory is 8.0GB. [2022-12-06 04:06:26,394 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:06:26,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.94ms. Allocated memory is still 178.3MB. Free memory was 152.6MB in the beginning and 127.9MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 04:06:26,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.28ms. Allocated memory is still 178.3MB. Free memory was 127.9MB in the beginning and 125.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:06:26,395 INFO L158 Benchmark]: Boogie Preprocessor took 37.64ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 124.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:06:26,395 INFO L158 Benchmark]: RCFGBuilder took 418.66ms. Allocated memory is still 178.3MB. Free memory was 124.3MB in the beginning and 110.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 04:06:26,397 INFO L158 Benchmark]: TraceAbstraction took 4152.09ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 109.6MB in the beginning and 101.5MB in the end (delta: 8.1MB). Peak memory consumption was 44.3MB. Max. memory is 8.0GB. [2022-12-06 04:06:26,402 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 516.94ms. Allocated memory is still 178.3MB. Free memory was 152.6MB in the beginning and 127.9MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.28ms. Allocated memory is still 178.3MB. Free memory was 127.9MB in the beginning and 125.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.64ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 124.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 418.66ms. Allocated memory is still 178.3MB. Free memory was 124.3MB in the beginning and 110.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4152.09ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 109.6MB in the beginning and 101.5MB in the end (delta: 8.1MB). Peak memory consumption was 44.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 83 PlacesBefore, 36 PlacesAfterwards, 89 TransitionsBefore, 37 TransitionsAfterwards, 2132 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 22 TrivialYvCompositions, 25 ConcurrentYvCompositions, 5 ChoiceCompositions, 62 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 1667, independent unconditional: 0, dependent: 102, dependent conditional: 102, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 0, independent unconditional: 1667, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 0, independent unconditional: 1667, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 0, independent unconditional: 1667, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1281, independent: 1235, independent conditional: 0, independent unconditional: 1235, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1281, independent: 1196, independent conditional: 0, independent unconditional: 1196, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 85, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1769, independent: 432, independent conditional: 0, independent unconditional: 432, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 1281, unknown conditional: 0, unknown unconditional: 1281] , Statistics on independence cache: Total cache size (in pairs): 2000, Positive cache size: 1954, Positive conditional cache size: 0, Positive unconditional cache size: 1954, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 38 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 530 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 315, independent: 258, independent conditional: 258, independent unconditional: 0, dependent: 57, dependent conditional: 57, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 315, independent: 258, independent conditional: 12, independent unconditional: 246, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 315, independent: 258, independent conditional: 0, independent unconditional: 258, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 315, independent: 258, independent conditional: 0, independent unconditional: 258, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 123, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 123, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 315, independent: 156, independent conditional: 0, independent unconditional: 156, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 123, unknown conditional: 0, unknown unconditional: 123] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 39 PlacesBefore, 39 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 150, independent: 123, independent conditional: 123, independent unconditional: 0, dependent: 27, dependent conditional: 27, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 150, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 150, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 150, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 150, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 18, unknown conditional: 0, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 45 PlacesBefore, 42 PlacesAfterwards, 43 TransitionsBefore, 40 TransitionsAfterwards, 430 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 180, independent: 155, independent conditional: 155, independent unconditional: 0, dependent: 25, dependent conditional: 25, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 180, independent: 155, independent conditional: 34, independent unconditional: 121, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 180, independent: 155, independent conditional: 18, independent unconditional: 137, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 180, independent: 155, independent conditional: 18, independent unconditional: 137, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, independent: 15, independent conditional: 1, independent unconditional: 14, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 180, independent: 140, independent conditional: 17, independent unconditional: 123, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 16, unknown conditional: 1, unknown unconditional: 15] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 144, Positive conditional cache size: 1, Positive unconditional cache size: 143, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 16, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 144, Positive conditional cache size: 1, Positive unconditional cache size: 143, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 739]: 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 5 procedures, 132 locations, 6 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: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 4 mSDtfsCounter, 363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 04:06:26,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...