/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:29:29,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:29:29,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:29:29,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:29:29,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:29:29,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:29:29,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:29:29,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:29:29,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:29:29,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:29:29,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:29:29,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:29:29,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:29:29,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:29:29,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:29:29,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:29:29,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:29:29,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:29:29,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:29:29,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:29:29,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:29:29,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:29:29,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:29:29,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:29:29,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:29:29,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:29:29,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:29:29,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:29:29,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:29:29,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:29:29,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:29:29,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:29:29,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:29:29,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:29:29,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:29:29,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:29:29,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:29:29,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:29:29,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:29:29,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:29:29,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:29:29,203 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-SemanticLbe.epf [2022-12-12 14:29:29,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:29:29,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:29:29,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:29:29,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:29:29,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:29:29,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:29:29,241 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:29:29,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:29:29,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:29:29,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:29:29,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:29:29,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:29:29,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:29:29,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:29:29,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:29:29,243 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:29:29,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:29:29,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:29:29,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:29:29,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:29:29,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:29:29,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:29:29,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:29:29,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:29:29,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:29:29,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:29:29,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:29:29,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:29:29,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:29:29,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:29:29,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:29:29,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:29:29,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:29:29,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:29:29,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:29:29,553 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:29:29,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i [2022-12-12 14:29:30,577 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:29:30,826 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:29:30,827 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i [2022-12-12 14:29:30,846 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d841941a9/a34aaad227a343e090fb2d608aefacf3/FLAGc21df9d8c [2022-12-12 14:29:30,855 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d841941a9/a34aaad227a343e090fb2d608aefacf3 [2022-12-12 14:29:30,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:29:30,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:29:30,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:29:30,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:29:30,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:29:30,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:29:30" (1/1) ... [2022-12-12 14:29:30,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a35e4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:30, skipping insertion in model container [2022-12-12 14:29:30,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:29:30" (1/1) ... [2022-12-12 14:29:30,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:29:30,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:29:31,067 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i[945,958] [2022-12-12 14:29:31,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,253 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,253 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:29:31,324 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:29:31,334 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i[945,958] [2022-12-12 14:29:31,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:29:31,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:29:31,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:29:31,442 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:29:31,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31 WrapperNode [2022-12-12 14:29:31,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:29:31,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:29:31,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:29:31,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:29:31,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,522 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-12-12 14:29:31,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:29:31,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:29:31,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:29:31,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:29:31,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,555 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:29:31,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:29:31,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:29:31,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:29:31,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (1/1) ... [2022-12-12 14:29:31,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:29:31,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:29:31,600 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) [2022-12-12 14:29:31,622 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 [2022-12-12 14:29:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:29:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:29:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:29:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:29:31,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:29:31,651 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 14:29:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 14:29:31,651 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 14:29:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 14:29:31,651 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 14:29:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 14:29:31,651 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 14:29:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 14:29:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:29:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:29:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:29:31,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:29:31,654 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:29:31,813 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:29:31,815 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:29:32,156 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:29:32,285 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:29:32,285 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:29:32,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:29:32 BoogieIcfgContainer [2022-12-12 14:29:32,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:29:32,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:29:32,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:29:32,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:29:32,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:29:30" (1/3) ... [2022-12-12 14:29:32,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce73685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:29:32, skipping insertion in model container [2022-12-12 14:29:32,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:29:31" (2/3) ... [2022-12-12 14:29:32,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce73685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:29:32, skipping insertion in model container [2022-12-12 14:29:32,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:29:32" (3/3) ... [2022-12-12 14:29:32,298 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2022-12-12 14:29:32,314 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:29:32,314 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 14:29:32,315 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:29:32,371 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 14:29:32,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 14:29:32,479 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 14:29:32,480 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:29:32,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 14:29:32,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 14:29:32,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 128 transitions, 268 flow [2022-12-12 14:29:32,495 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:29:32,520 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 14:29:32,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 268 flow [2022-12-12 14:29:32,578 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 14:29:32,583 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:29:32,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 14:29:32,588 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 14:29:32,588 INFO L226 LiptonReduction]: Number of co-enabled transitions 3164 [2022-12-12 14:29:38,698 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-12 14:29:38,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:29:38,716 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d251bc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:29:38,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 14:29:38,719 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-12 14:29:38,719 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:29:38,719 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:29:38,720 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 14:29:38,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:29:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:29:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash 570603, now seen corresponding path program 1 times [2022-12-12 14:29:38,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:29:38,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522912334] [2022-12-12 14:29:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:29:38,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:29:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:29:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:29:39,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:29:39,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522912334] [2022-12-12 14:29:39,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522912334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:29:39,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:29:39,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:29:39,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282124332] [2022-12-12 14:29:39,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:29:39,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:29:39,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:29:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:29:39,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:29:39,076 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 82 [2022-12-12 14:29:39,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-12-12 14:29:39,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:29:39,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 82 [2022-12-12 14:29:39,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:29:46,945 INFO L130 PetriNetUnfolder]: 66790/97256 cut-off events. [2022-12-12 14:29:46,945 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-12-12 14:29:47,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185545 conditions, 97256 events. 66790/97256 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 4532. Compared 791823 event pairs, 9970 based on Foata normal form. 0/63205 useless extension candidates. Maximal degree in co-relation 185533. Up to 73765 conditions per place. [2022-12-12 14:29:47,301 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 48 selfloop transitions, 2 changer transitions 71/137 dead transitions. [2022-12-12 14:29:47,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 137 transitions, 535 flow [2022-12-12 14:29:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:29:47,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:29:47,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2022-12-12 14:29:47,311 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2022-12-12 14:29:47,312 INFO L175 Difference]: Start difference. First operand has 95 places, 82 transitions, 176 flow. Second operand 3 states and 174 transitions. [2022-12-12 14:29:47,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 137 transitions, 535 flow [2022-12-12 14:29:47,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 137 transitions, 528 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-12 14:29:47,319 INFO L231 Difference]: Finished difference. Result has 91 places, 44 transitions, 100 flow [2022-12-12 14:29:47,320 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=91, PETRI_TRANSITIONS=44} [2022-12-12 14:29:47,322 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -4 predicate places. [2022-12-12 14:29:47,323 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 44 transitions, 100 flow [2022-12-12 14:29:47,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-12-12 14:29:47,323 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:29:47,323 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:29:47,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:29:47,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:29:47,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:29:47,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1983366052, now seen corresponding path program 1 times [2022-12-12 14:29:47,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:29:47,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436516368] [2022-12-12 14:29:47,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:29:47,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:29:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:29:47,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:29:47,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:29:47,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436516368] [2022-12-12 14:29:47,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436516368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:29:47,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:29:47,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:29:47,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738905631] [2022-12-12 14:29:47,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:29:47,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:29:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:29:47,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:29:47,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:29:47,613 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 14:29:47,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 14:29:47,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:29:47,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 14:29:47,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:29:50,173 INFO L130 PetriNetUnfolder]: 25015/34507 cut-off events. [2022-12-12 14:29:50,173 INFO L131 PetriNetUnfolder]: For 1337/1337 co-relation queries the response was YES. [2022-12-12 14:29:50,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69443 conditions, 34507 events. 25015/34507 cut-off events. For 1337/1337 co-relation queries the response was YES. Maximal size of possible extension queue 1083. Compared 194906 event pairs, 13343 based on Foata normal form. 0/27909 useless extension candidates. Maximal degree in co-relation 69433. Up to 32837 conditions per place. [2022-12-12 14:29:50,370 INFO L137 encePairwiseOnDemand]: 76/82 looper letters, 43 selfloop transitions, 5 changer transitions 2/61 dead transitions. [2022-12-12 14:29:50,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 61 transitions, 242 flow [2022-12-12 14:29:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:29:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:29:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2022-12-12 14:29:50,375 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35365853658536583 [2022-12-12 14:29:50,375 INFO L175 Difference]: Start difference. First operand has 91 places, 44 transitions, 100 flow. Second operand 3 states and 87 transitions. [2022-12-12 14:29:50,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 61 transitions, 242 flow [2022-12-12 14:29:50,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 61 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:29:50,377 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 127 flow [2022-12-12 14:29:50,377 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2022-12-12 14:29:50,378 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -39 predicate places. [2022-12-12 14:29:50,378 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 127 flow [2022-12-12 14:29:50,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 14:29:50,378 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:29:50,379 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:29:50,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:29:50,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:29:50,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:29:50,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1552985298, now seen corresponding path program 1 times [2022-12-12 14:29:50,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:29:50,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991341169] [2022-12-12 14:29:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:29:50,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:29:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:29:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:29:50,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:29:50,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991341169] [2022-12-12 14:29:50,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991341169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:29:50,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:29:50,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:29:50,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617688821] [2022-12-12 14:29:50,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:29:50,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:29:50,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:29:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:29:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:29:50,603 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 14:29:50,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 14:29:50,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:29:50,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 14:29:50,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:29:52,379 INFO L130 PetriNetUnfolder]: 18491/25693 cut-off events. [2022-12-12 14:29:52,379 INFO L131 PetriNetUnfolder]: For 3811/3811 co-relation queries the response was YES. [2022-12-12 14:29:52,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55748 conditions, 25693 events. 18491/25693 cut-off events. For 3811/3811 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 139712 event pairs, 5203 based on Foata normal form. 416/22195 useless extension candidates. Maximal degree in co-relation 55737. Up to 18145 conditions per place. [2022-12-12 14:29:52,570 INFO L137 encePairwiseOnDemand]: 79/82 looper letters, 50 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2022-12-12 14:29:52,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 273 flow [2022-12-12 14:29:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:29:52,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:29:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-12 14:29:52,573 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34959349593495936 [2022-12-12 14:29:52,573 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 127 flow. Second operand 3 states and 86 transitions. [2022-12-12 14:29:52,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 273 flow [2022-12-12 14:29:52,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 64 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:29:52,577 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 133 flow [2022-12-12 14:29:52,578 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2022-12-12 14:29:52,579 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -38 predicate places. [2022-12-12 14:29:52,579 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 133 flow [2022-12-12 14:29:52,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 14:29:52,579 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:29:52,579 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:29:52,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:29:52,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:29:52,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:29:52,581 INFO L85 PathProgramCache]: Analyzing trace with hash 853429598, now seen corresponding path program 1 times [2022-12-12 14:29:52,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:29:52,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592398939] [2022-12-12 14:29:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:29:52,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:29:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:29:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:29:52,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:29:52,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592398939] [2022-12-12 14:29:52,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592398939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:29:52,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:29:52,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:29:52,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816381108] [2022-12-12 14:29:52,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:29:52,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:29:52,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:29:52,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:29:52,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:29:52,757 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 14:29:52,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-12-12 14:29:52,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:29:52,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 14:29:52,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:29:54,994 INFO L130 PetriNetUnfolder]: 24030/33278 cut-off events. [2022-12-12 14:29:54,994 INFO L131 PetriNetUnfolder]: For 4664/4859 co-relation queries the response was YES. [2022-12-12 14:29:55,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71354 conditions, 33278 events. 24030/33278 cut-off events. For 4664/4859 co-relation queries the response was YES. Maximal size of possible extension queue 1464. Compared 198205 event pairs, 7380 based on Foata normal form. 189/23082 useless extension candidates. Maximal degree in co-relation 71341. Up to 31819 conditions per place. [2022-12-12 14:29:55,182 INFO L137 encePairwiseOnDemand]: 68/82 looper letters, 46 selfloop transitions, 13 changer transitions 0/74 dead transitions. [2022-12-12 14:29:55,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 74 transitions, 311 flow [2022-12-12 14:29:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:29:55,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:29:55,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-12 14:29:55,189 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2022-12-12 14:29:55,189 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 133 flow. Second operand 3 states and 99 transitions. [2022-12-12 14:29:55,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 74 transitions, 311 flow [2022-12-12 14:29:55,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 305 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:29:55,195 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 216 flow [2022-12-12 14:29:55,195 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2022-12-12 14:29:55,196 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -37 predicate places. [2022-12-12 14:29:55,196 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 216 flow [2022-12-12 14:29:55,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-12-12 14:29:55,197 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:29:55,197 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:29:55,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:29:55,197 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:29:55,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:29:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1724113891, now seen corresponding path program 1 times [2022-12-12 14:29:55,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:29:55,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705260930] [2022-12-12 14:29:55,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:29:55,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:29:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:29:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:29:55,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:29:55,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705260930] [2022-12-12 14:29:55,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705260930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:29:55,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:29:55,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:29:55,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877814521] [2022-12-12 14:29:55,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:29:55,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:29:55,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:29:55,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:29:55,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:29:55,420 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 14:29:55,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-12-12 14:29:55,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:29:55,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 14:29:55,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:29:56,999 INFO L130 PetriNetUnfolder]: 15456/22676 cut-off events. [2022-12-12 14:29:57,000 INFO L131 PetriNetUnfolder]: For 3575/3647 co-relation queries the response was YES. [2022-12-12 14:29:57,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61042 conditions, 22676 events. 15456/22676 cut-off events. For 3575/3647 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 144347 event pairs, 2691 based on Foata normal form. 702/16457 useless extension candidates. Maximal degree in co-relation 61028. Up to 18595 conditions per place. [2022-12-12 14:29:57,132 INFO L137 encePairwiseOnDemand]: 68/82 looper letters, 59 selfloop transitions, 25 changer transitions 0/99 dead transitions. [2022-12-12 14:29:57,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 99 transitions, 498 flow [2022-12-12 14:29:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:29:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:29:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2022-12-12 14:29:57,134 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4176829268292683 [2022-12-12 14:29:57,134 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 216 flow. Second operand 4 states and 137 transitions. [2022-12-12 14:29:57,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 99 transitions, 498 flow [2022-12-12 14:29:57,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 99 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:29:57,139 INFO L231 Difference]: Finished difference. Result has 61 places, 71 transitions, 351 flow [2022-12-12 14:29:57,139 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=351, PETRI_PLACES=61, PETRI_TRANSITIONS=71} [2022-12-12 14:29:57,141 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -34 predicate places. [2022-12-12 14:29:57,141 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 71 transitions, 351 flow [2022-12-12 14:29:57,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-12-12 14:29:57,141 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:29:57,141 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:29:57,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:29:57,142 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:29:57,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:29:57,142 INFO L85 PathProgramCache]: Analyzing trace with hash -540609070, now seen corresponding path program 1 times [2022-12-12 14:29:57,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:29:57,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380648428] [2022-12-12 14:29:57,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:29:57,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:29:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:29:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:29:57,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:29:57,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380648428] [2022-12-12 14:29:57,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380648428] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:29:57,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:29:57,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:29:57,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364327201] [2022-12-12 14:29:57,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:29:57,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:29:57,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:29:57,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:29:57,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:29:57,600 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 82 [2022-12-12 14:29:57,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 71 transitions, 351 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2022-12-12 14:29:57,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:29:57,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 82 [2022-12-12 14:29:57,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:00,772 INFO L130 PetriNetUnfolder]: 27437/42310 cut-off events. [2022-12-12 14:30:00,772 INFO L131 PetriNetUnfolder]: For 23349/29146 co-relation queries the response was YES. [2022-12-12 14:30:00,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135537 conditions, 42310 events. 27437/42310 cut-off events. For 23349/29146 co-relation queries the response was YES. Maximal size of possible extension queue 2328. Compared 327814 event pairs, 8100 based on Foata normal form. 1764/35853 useless extension candidates. Maximal degree in co-relation 135521. Up to 23473 conditions per place. [2022-12-12 14:30:00,997 INFO L137 encePairwiseOnDemand]: 74/82 looper letters, 155 selfloop transitions, 16 changer transitions 4/202 dead transitions. [2022-12-12 14:30:00,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 202 transitions, 1391 flow [2022-12-12 14:30:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:30:00,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:30:00,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2022-12-12 14:30:01,000 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40853658536585363 [2022-12-12 14:30:01,000 INFO L175 Difference]: Start difference. First operand has 61 places, 71 transitions, 351 flow. Second operand 6 states and 201 transitions. [2022-12-12 14:30:01,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 202 transitions, 1391 flow [2022-12-12 14:30:01,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 202 transitions, 1229 flow, removed 40 selfloop flow, removed 2 redundant places. [2022-12-12 14:30:01,015 INFO L231 Difference]: Finished difference. Result has 67 places, 90 transitions, 411 flow [2022-12-12 14:30:01,015 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=411, PETRI_PLACES=67, PETRI_TRANSITIONS=90} [2022-12-12 14:30:01,017 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -28 predicate places. [2022-12-12 14:30:01,018 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 90 transitions, 411 flow [2022-12-12 14:30:01,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2022-12-12 14:30:01,018 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:01,018 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:01,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 14:30:01,018 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1974902496, now seen corresponding path program 2 times [2022-12-12 14:30:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:01,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828495750] [2022-12-12 14:30:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:01,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:01,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:01,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828495750] [2022-12-12 14:30:01,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828495750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:01,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:01,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:30:01,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755991003] [2022-12-12 14:30:01,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:01,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:30:01,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:01,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:30:01,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:30:01,360 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 14:30:01,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 90 transitions, 411 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2022-12-12 14:30:01,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:01,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 14:30:01,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:03,398 INFO L130 PetriNetUnfolder]: 17453/26981 cut-off events. [2022-12-12 14:30:03,398 INFO L131 PetriNetUnfolder]: For 18352/18402 co-relation queries the response was YES. [2022-12-12 14:30:03,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91136 conditions, 26981 events. 17453/26981 cut-off events. For 18352/18402 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 192521 event pairs, 1214 based on Foata normal form. 2003/19686 useless extension candidates. Maximal degree in co-relation 91118. Up to 13096 conditions per place. [2022-12-12 14:30:03,509 INFO L137 encePairwiseOnDemand]: 68/82 looper letters, 115 selfloop transitions, 37 changer transitions 13/180 dead transitions. [2022-12-12 14:30:03,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 180 transitions, 1126 flow [2022-12-12 14:30:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:30:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:30:03,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2022-12-12 14:30:03,511 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4219512195121951 [2022-12-12 14:30:03,512 INFO L175 Difference]: Start difference. First operand has 67 places, 90 transitions, 411 flow. Second operand 5 states and 173 transitions. [2022-12-12 14:30:03,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 180 transitions, 1126 flow [2022-12-12 14:30:03,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 180 transitions, 1124 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-12 14:30:03,588 INFO L231 Difference]: Finished difference. Result has 72 places, 99 transitions, 589 flow [2022-12-12 14:30:03,588 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=589, PETRI_PLACES=72, PETRI_TRANSITIONS=99} [2022-12-12 14:30:03,588 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -23 predicate places. [2022-12-12 14:30:03,588 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 99 transitions, 589 flow [2022-12-12 14:30:03,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2022-12-12 14:30:03,589 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:03,589 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:03,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 14:30:03,589 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1705639752, now seen corresponding path program 1 times [2022-12-12 14:30:03,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:03,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430773317] [2022-12-12 14:30:03,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:03,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:04,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430773317] [2022-12-12 14:30:04,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430773317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:04,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:04,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:30:04,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844619009] [2022-12-12 14:30:04,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:04,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:30:04,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:30:04,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:30:04,388 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 82 [2022-12-12 14:30:04,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 99 transitions, 589 flow. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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) [2022-12-12 14:30:04,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:04,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 82 [2022-12-12 14:30:04,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:06,779 INFO L130 PetriNetUnfolder]: 17303/28283 cut-off events. [2022-12-12 14:30:06,779 INFO L131 PetriNetUnfolder]: For 36602/41712 co-relation queries the response was YES. [2022-12-12 14:30:06,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115022 conditions, 28283 events. 17303/28283 cut-off events. For 36602/41712 co-relation queries the response was YES. Maximal size of possible extension queue 1484. Compared 224863 event pairs, 2228 based on Foata normal form. 1989/24302 useless extension candidates. Maximal degree in co-relation 115001. Up to 18206 conditions per place. [2022-12-12 14:30:06,922 INFO L137 encePairwiseOnDemand]: 74/82 looper letters, 176 selfloop transitions, 18 changer transitions 14/239 dead transitions. [2022-12-12 14:30:06,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 239 transitions, 1845 flow [2022-12-12 14:30:06,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 14:30:06,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 14:30:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2022-12-12 14:30:06,924 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3780487804878049 [2022-12-12 14:30:06,924 INFO L175 Difference]: Start difference. First operand has 72 places, 99 transitions, 589 flow. Second operand 7 states and 217 transitions. [2022-12-12 14:30:06,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 239 transitions, 1845 flow [2022-12-12 14:30:07,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 239 transitions, 1569 flow, removed 64 selfloop flow, removed 4 redundant places. [2022-12-12 14:30:07,758 INFO L231 Difference]: Finished difference. Result has 79 places, 116 transitions, 651 flow [2022-12-12 14:30:07,758 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=651, PETRI_PLACES=79, PETRI_TRANSITIONS=116} [2022-12-12 14:30:07,759 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -16 predicate places. [2022-12-12 14:30:07,759 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 116 transitions, 651 flow [2022-12-12 14:30:07,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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) [2022-12-12 14:30:07,759 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:07,759 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:07,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 14:30:07,760 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:07,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:07,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1700125853, now seen corresponding path program 1 times [2022-12-12 14:30:07,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:07,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345287724] [2022-12-12 14:30:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:07,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:07,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:07,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345287724] [2022-12-12 14:30:07,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345287724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:07,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:07,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:30:07,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152717879] [2022-12-12 14:30:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:07,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:30:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:07,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:30:07,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:30:07,954 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 14:30:07,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 116 transitions, 651 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2022-12-12 14:30:07,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:07,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 14:30:07,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:11,669 INFO L130 PetriNetUnfolder]: 31050/48367 cut-off events. [2022-12-12 14:30:11,670 INFO L131 PetriNetUnfolder]: For 69798/75429 co-relation queries the response was YES. [2022-12-12 14:30:11,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175283 conditions, 48367 events. 31050/48367 cut-off events. For 69798/75429 co-relation queries the response was YES. Maximal size of possible extension queue 2367. Compared 381190 event pairs, 3571 based on Foata normal form. 3966/42861 useless extension candidates. Maximal degree in co-relation 175258. Up to 21542 conditions per place. [2022-12-12 14:30:11,890 INFO L137 encePairwiseOnDemand]: 75/82 looper letters, 196 selfloop transitions, 11 changer transitions 39/269 dead transitions. [2022-12-12 14:30:11,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 269 transitions, 1983 flow [2022-12-12 14:30:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:30:11,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:30:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 176 transitions. [2022-12-12 14:30:11,892 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35772357723577236 [2022-12-12 14:30:11,892 INFO L175 Difference]: Start difference. First operand has 79 places, 116 transitions, 651 flow. Second operand 6 states and 176 transitions. [2022-12-12 14:30:11,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 269 transitions, 1983 flow [2022-12-12 14:30:13,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 269 transitions, 1973 flow, removed 5 selfloop flow, removed 0 redundant places. [2022-12-12 14:30:13,377 INFO L231 Difference]: Finished difference. Result has 86 places, 116 transitions, 660 flow [2022-12-12 14:30:13,378 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=660, PETRI_PLACES=86, PETRI_TRANSITIONS=116} [2022-12-12 14:30:13,378 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -9 predicate places. [2022-12-12 14:30:13,378 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 116 transitions, 660 flow [2022-12-12 14:30:13,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2022-12-12 14:30:13,378 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:13,378 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:13,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 14:30:13,379 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:13,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:13,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1313674712, now seen corresponding path program 1 times [2022-12-12 14:30:13,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:13,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024322201] [2022-12-12 14:30:13,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:13,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:13,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:13,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:13,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024322201] [2022-12-12 14:30:13,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024322201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:13,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:13,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:30:13,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328323954] [2022-12-12 14:30:13,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:13,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:30:13,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:13,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:30:13,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:30:13,573 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 14:30:13,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 116 transitions, 660 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2022-12-12 14:30:13,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:13,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 14:30:13,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:19,040 INFO L130 PetriNetUnfolder]: 46532/71763 cut-off events. [2022-12-12 14:30:19,040 INFO L131 PetriNetUnfolder]: For 118476/128291 co-relation queries the response was YES. [2022-12-12 14:30:19,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270249 conditions, 71763 events. 46532/71763 cut-off events. For 118476/128291 co-relation queries the response was YES. Maximal size of possible extension queue 3998. Compared 589596 event pairs, 5273 based on Foata normal form. 5481/62373 useless extension candidates. Maximal degree in co-relation 270220. Up to 31577 conditions per place. [2022-12-12 14:30:19,610 INFO L137 encePairwiseOnDemand]: 75/82 looper letters, 190 selfloop transitions, 14 changer transitions 24/251 dead transitions. [2022-12-12 14:30:19,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 251 transitions, 1901 flow [2022-12-12 14:30:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:30:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:30:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2022-12-12 14:30:19,612 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.32926829268292684 [2022-12-12 14:30:19,612 INFO L175 Difference]: Start difference. First operand has 86 places, 116 transitions, 660 flow. Second operand 6 states and 162 transitions. [2022-12-12 14:30:19,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 251 transitions, 1901 flow [2022-12-12 14:30:22,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 251 transitions, 1866 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-12-12 14:30:22,768 INFO L231 Difference]: Finished difference. Result has 89 places, 121 transitions, 702 flow [2022-12-12 14:30:22,769 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=702, PETRI_PLACES=89, PETRI_TRANSITIONS=121} [2022-12-12 14:30:22,769 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -6 predicate places. [2022-12-12 14:30:22,769 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 121 transitions, 702 flow [2022-12-12 14:30:22,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2022-12-12 14:30:22,769 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:22,769 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:22,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 14:30:22,770 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:22,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1401335316, now seen corresponding path program 2 times [2022-12-12 14:30:22,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:22,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012019146] [2022-12-12 14:30:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:23,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:23,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012019146] [2022-12-12 14:30:23,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012019146] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:23,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:23,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:30:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500025205] [2022-12-12 14:30:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:23,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:30:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:23,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:30:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:30:23,406 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 82 [2022-12-12 14:30:23,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 121 transitions, 702 flow. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 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) [2022-12-12 14:30:23,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:23,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 82 [2022-12-12 14:30:23,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:31,213 INFO L130 PetriNetUnfolder]: 59622/96484 cut-off events. [2022-12-12 14:30:31,213 INFO L131 PetriNetUnfolder]: For 148493/160012 co-relation queries the response was YES. [2022-12-12 14:30:31,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368811 conditions, 96484 events. 59622/96484 cut-off events. For 148493/160012 co-relation queries the response was YES. Maximal size of possible extension queue 6472. Compared 903642 event pairs, 7045 based on Foata normal form. 5817/79782 useless extension candidates. Maximal degree in co-relation 368782. Up to 48632 conditions per place. [2022-12-12 14:30:31,728 INFO L137 encePairwiseOnDemand]: 73/82 looper letters, 211 selfloop transitions, 14 changer transitions 12/273 dead transitions. [2022-12-12 14:30:31,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 273 transitions, 2003 flow [2022-12-12 14:30:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:30:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:30:31,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2022-12-12 14:30:31,729 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42073170731707316 [2022-12-12 14:30:31,730 INFO L175 Difference]: Start difference. First operand has 89 places, 121 transitions, 702 flow. Second operand 6 states and 207 transitions. [2022-12-12 14:30:31,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 273 transitions, 2003 flow [2022-12-12 14:30:36,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 273 transitions, 2003 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-12 14:30:36,227 INFO L231 Difference]: Finished difference. Result has 96 places, 120 transitions, 731 flow [2022-12-12 14:30:36,227 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=731, PETRI_PLACES=96, PETRI_TRANSITIONS=120} [2022-12-12 14:30:36,228 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 1 predicate places. [2022-12-12 14:30:36,228 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 120 transitions, 731 flow [2022-12-12 14:30:36,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 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) [2022-12-12 14:30:36,228 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:36,228 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:36,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 14:30:36,228 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:36,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1919036411, now seen corresponding path program 2 times [2022-12-12 14:30:36,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:36,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531566517] [2022-12-12 14:30:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:36,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:36,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:36,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531566517] [2022-12-12 14:30:36,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531566517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:36,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:36,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:30:36,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259744410] [2022-12-12 14:30:36,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:36,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:30:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:36,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:30:36,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:30:36,461 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 14:30:36,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 120 transitions, 731 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-12 14:30:36,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:36,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 14:30:36,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:42,188 INFO L130 PetriNetUnfolder]: 49237/75672 cut-off events. [2022-12-12 14:30:42,188 INFO L131 PetriNetUnfolder]: For 110455/110703 co-relation queries the response was YES. [2022-12-12 14:30:42,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288018 conditions, 75672 events. 49237/75672 cut-off events. For 110455/110703 co-relation queries the response was YES. Maximal size of possible extension queue 3824. Compared 624078 event pairs, 773 based on Foata normal form. 6399/48261 useless extension candidates. Maximal degree in co-relation 287985. Up to 29620 conditions per place. [2022-12-12 14:30:42,540 INFO L137 encePairwiseOnDemand]: 68/82 looper letters, 91 selfloop transitions, 49 changer transitions 56/209 dead transitions. [2022-12-12 14:30:42,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 209 transitions, 1648 flow [2022-12-12 14:30:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:30:42,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:30:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2022-12-12 14:30:42,542 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3780487804878049 [2022-12-12 14:30:42,542 INFO L175 Difference]: Start difference. First operand has 96 places, 120 transitions, 731 flow. Second operand 6 states and 186 transitions. [2022-12-12 14:30:42,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 209 transitions, 1648 flow [2022-12-12 14:30:54,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 209 transitions, 1598 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-12 14:30:54,612 INFO L231 Difference]: Finished difference. Result has 98 places, 97 transitions, 672 flow [2022-12-12 14:30:54,613 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=672, PETRI_PLACES=98, PETRI_TRANSITIONS=97} [2022-12-12 14:30:54,613 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 3 predicate places. [2022-12-12 14:30:54,613 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 97 transitions, 672 flow [2022-12-12 14:30:54,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-12 14:30:54,614 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:54,614 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:54,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 14:30:54,614 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:54,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1846249003, now seen corresponding path program 1 times [2022-12-12 14:30:54,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:54,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881396379] [2022-12-12 14:30:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:54,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:55,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:55,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:55,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881396379] [2022-12-12 14:30:55,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881396379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:55,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:55,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:30:55,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643062772] [2022-12-12 14:30:55,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:55,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:30:55,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:55,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:30:55,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:30:55,228 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 82 [2022-12-12 14:30:55,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 672 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2022-12-12 14:30:55,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:55,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 82 [2022-12-12 14:30:55,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:30:56,858 INFO L130 PetriNetUnfolder]: 13005/20616 cut-off events. [2022-12-12 14:30:56,858 INFO L131 PetriNetUnfolder]: For 41541/43632 co-relation queries the response was YES. [2022-12-12 14:30:56,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87088 conditions, 20616 events. 13005/20616 cut-off events. For 41541/43632 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 147640 event pairs, 1862 based on Foata normal form. 830/16640 useless extension candidates. Maximal degree in co-relation 87055. Up to 12204 conditions per place. [2022-12-12 14:30:56,965 INFO L137 encePairwiseOnDemand]: 72/82 looper letters, 89 selfloop transitions, 23 changer transitions 65/205 dead transitions. [2022-12-12 14:30:56,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 205 transitions, 1727 flow [2022-12-12 14:30:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 14:30:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 14:30:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 205 transitions. [2022-12-12 14:30:56,967 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-12 14:30:56,967 INFO L175 Difference]: Start difference. First operand has 98 places, 97 transitions, 672 flow. Second operand 7 states and 205 transitions. [2022-12-12 14:30:56,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 205 transitions, 1727 flow [2022-12-12 14:30:59,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 205 transitions, 1456 flow, removed 67 selfloop flow, removed 8 redundant places. [2022-12-12 14:30:59,371 INFO L231 Difference]: Finished difference. Result has 91 places, 115 transitions, 728 flow [2022-12-12 14:30:59,371 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=728, PETRI_PLACES=91, PETRI_TRANSITIONS=115} [2022-12-12 14:30:59,372 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -4 predicate places. [2022-12-12 14:30:59,372 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 115 transitions, 728 flow [2022-12-12 14:30:59,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2022-12-12 14:30:59,372 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:30:59,372 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:30:59,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 14:30:59,372 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:30:59,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:30:59,373 INFO L85 PathProgramCache]: Analyzing trace with hash 592755207, now seen corresponding path program 1 times [2022-12-12 14:30:59,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:30:59,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246793085] [2022-12-12 14:30:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:30:59,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:30:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:30:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:30:59,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:30:59,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246793085] [2022-12-12 14:30:59,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246793085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:30:59,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:30:59,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:30:59,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052705454] [2022-12-12 14:30:59,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:30:59,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:30:59,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:30:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:30:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:30:59,562 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 14:30:59,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 115 transitions, 728 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2022-12-12 14:30:59,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:30:59,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 14:30:59,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand