/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:41:59,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:41:59,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:41:59,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:41:59,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:41:59,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:41:59,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:41:59,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:41:59,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:41:59,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:41:59,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:41:59,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:41:59,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:41:59,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:41:59,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:41:59,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:41:59,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:41:59,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:41:59,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:41:59,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:41:59,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:41:59,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:41:59,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:41:59,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:41:59,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:41:59,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:41:59,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:41:59,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:41:59,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:41:59,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:41:59,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:41:59,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:41:59,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:41:59,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:41:59,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:41:59,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:41:59,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:41:59,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:41:59,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:41:59,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:41:59,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:41:59,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 23:41:59,500 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:41:59,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:41:59,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:41:59,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:41:59,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:41:59,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:41:59,501 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:41:59,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:41:59,501 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:41:59,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:41:59,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:41:59,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:41:59,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:41:59,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:41:59,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:41:59,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:41:59,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:41:59,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:41:59,503 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:41:59,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:41:59,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:41:59,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:41:59,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:41:59,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:41:59,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:41:59,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:41:59,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:41:59,822 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:41:59,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:00,793 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:42:00,979 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:42:00,980 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:00,989 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5180d972/dc4af2c092eb4c7b9d7943f205753968/FLAGbffbcf845 [2022-12-11 23:42:01,003 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5180d972/dc4af2c092eb4c7b9d7943f205753968 [2022-12-11 23:42:01,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:42:01,007 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:42:01,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:42:01,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:42:01,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:42:01,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6648963f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01, skipping insertion in model container [2022-12-11 23:42:01,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:42:01,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:42:01,145 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-11 23:42:01,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:01,238 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:42:01,250 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-11 23:42:01,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:01,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:01,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:01,335 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:42:01,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01 WrapperNode [2022-12-11 23:42:01,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:42:01,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:01,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:42:01,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:42:01,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,390 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-11 23:42:01,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:01,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:42:01,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:42:01,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:42:01,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,415 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:42:01,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:42:01,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:42:01,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:42:01,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (1/1) ... [2022-12-11 23:42:01,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:42:01,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:42:01,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 23:42:01,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 23:42:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:42:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 23:42:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:42:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:42:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:42:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 23:42:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 23:42:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 23:42:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 23:42:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 23:42:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 23:42:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:42:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 23:42:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:42:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:42:01,471 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:42:01,549 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:42:01,550 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:42:01,681 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:42:01,689 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:42:01,690 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:42:01,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:01 BoogieIcfgContainer [2022-12-11 23:42:01,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:42:01,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:42:01,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:42:01,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:42:01,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:42:01" (1/3) ... [2022-12-11 23:42:01,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30507177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:01, skipping insertion in model container [2022-12-11 23:42:01,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:01" (2/3) ... [2022-12-11 23:42:01,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30507177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:01, skipping insertion in model container [2022-12-11 23:42:01,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:01" (3/3) ... [2022-12-11 23:42:01,698 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 23:42:01,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:42:01,712 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:42:01,712 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:42:01,745 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 23:42:01,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:42:01,794 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-11 23:42:01,794 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:01,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 23:42:01,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:42:01,801 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-11 23:42:01,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:42:01,812 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;@62c2c6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:42:01,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 23:42:01,826 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-11 23:42:01,827 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:01,827 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:01,827 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:01,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2225101, now seen corresponding path program 1 times [2022-12-11 23:42:01,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:01,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427016897] [2022-12-11 23:42:01,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:01,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:02,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:02,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427016897] [2022-12-11 23:42:02,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427016897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:02,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:02,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:02,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039524915] [2022-12-11 23:42:02,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:02,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:02,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:02,558 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:42:02,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:02,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:02,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:42:02,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:02,865 INFO L130 PetriNetUnfolder]: 263/652 cut-off events. [2022-12-11 23:42:02,865 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-11 23:42:02,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 652 events. 263/652 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3386 event pairs, 18 based on Foata normal form. 28/649 useless extension candidates. Maximal degree in co-relation 1113. Up to 116 conditions per place. [2022-12-11 23:42:02,873 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 22 selfloop transitions, 8 changer transitions 50/131 dead transitions. [2022-12-11 23:42:02,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 131 transitions, 431 flow [2022-12-11 23:42:02,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:02,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:02,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 905 transitions. [2022-12-11 23:42:02,885 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8190045248868778 [2022-12-11 23:42:02,887 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2022-12-11 23:42:02,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 131 transitions, 431 flow [2022-12-11 23:42:02,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 81 transitions, 231 flow [2022-12-11 23:42:02,891 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 231 flow [2022-12-11 23:42:02,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:02,891 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:02,891 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:02,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:42:02,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:02,892 INFO L85 PathProgramCache]: Analyzing trace with hash 654236366, now seen corresponding path program 1 times [2022-12-11 23:42:02,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:02,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362850675] [2022-12-11 23:42:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:03,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:03,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362850675] [2022-12-11 23:42:03,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362850675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:03,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:03,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:03,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630984543] [2022-12-11 23:42:03,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:03,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:03,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:03,042 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:42:03,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 231 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:03,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:03,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:42:03,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:03,255 INFO L130 PetriNetUnfolder]: 124/485 cut-off events. [2022-12-11 23:42:03,255 INFO L131 PetriNetUnfolder]: For 65/238 co-relation queries the response was YES. [2022-12-11 23:42:03,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 485 events. 124/485 cut-off events. For 65/238 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2583 event pairs, 5 based on Foata normal form. 16/482 useless extension candidates. Maximal degree in co-relation 991. Up to 135 conditions per place. [2022-12-11 23:42:03,257 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 27 selfloop transitions, 14 changer transitions 43/135 dead transitions. [2022-12-11 23:42:03,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 135 transitions, 621 flow [2022-12-11 23:42:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 890 transitions. [2022-12-11 23:42:03,259 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8054298642533937 [2022-12-11 23:42:03,260 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 15 predicate places. [2022-12-11 23:42:03,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 135 transitions, 621 flow [2022-12-11 23:42:03,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 92 transitions, 363 flow [2022-12-11 23:42:03,262 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 92 transitions, 363 flow [2022-12-11 23:42:03,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:03,263 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:03,263 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:03,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:42:03,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:03,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:03,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1791477843, now seen corresponding path program 1 times [2022-12-11 23:42:03,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:03,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738005792] [2022-12-11 23:42:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:03,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:03,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:03,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738005792] [2022-12-11 23:42:03,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738005792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:03,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:03,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:03,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738501581] [2022-12-11 23:42:03,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:03,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:03,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:03,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:03,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:03,428 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:42:03,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 92 transitions, 363 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:03,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:03,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:42:03,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:03,633 INFO L130 PetriNetUnfolder]: 71/351 cut-off events. [2022-12-11 23:42:03,633 INFO L131 PetriNetUnfolder]: For 127/683 co-relation queries the response was YES. [2022-12-11 23:42:03,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 351 events. 71/351 cut-off events. For 127/683 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1748 event pairs, 2 based on Foata normal form. 12/352 useless extension candidates. Maximal degree in co-relation 840. Up to 100 conditions per place. [2022-12-11 23:42:03,635 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 34 selfloop transitions, 18 changer transitions 31/134 dead transitions. [2022-12-11 23:42:03,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 134 transitions, 793 flow [2022-12-11 23:42:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 878 transitions. [2022-12-11 23:42:03,637 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7945701357466063 [2022-12-11 23:42:03,638 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2022-12-11 23:42:03,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 134 transitions, 793 flow [2022-12-11 23:42:03,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 103 transitions, 545 flow [2022-12-11 23:42:03,641 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 103 transitions, 545 flow [2022-12-11 23:42:03,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:03,642 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:03,642 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:03,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:42:03,643 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:03,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:03,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1358524643, now seen corresponding path program 1 times [2022-12-11 23:42:03,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:03,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487415125] [2022-12-11 23:42:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:03,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:03,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:03,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487415125] [2022-12-11 23:42:03,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487415125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:03,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:03,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:42:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583412149] [2022-12-11 23:42:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:03,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:42:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:42:03,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:42:03,817 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2022-12-11 23:42:03,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 103 transitions, 545 flow. Second operand has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:03,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:03,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2022-12-11 23:42:03,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:03,935 INFO L130 PetriNetUnfolder]: 45/322 cut-off events. [2022-12-11 23:42:03,935 INFO L131 PetriNetUnfolder]: For 309/470 co-relation queries the response was YES. [2022-12-11 23:42:03,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 322 events. 45/322 cut-off events. For 309/470 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1581 event pairs, 0 based on Foata normal form. 13/327 useless extension candidates. Maximal degree in co-relation 711. Up to 56 conditions per place. [2022-12-11 23:42:03,937 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 23 selfloop transitions, 8 changer transitions 13/120 dead transitions. [2022-12-11 23:42:03,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 781 flow [2022-12-11 23:42:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 23:42:03,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 23:42:03,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 655 transitions. [2022-12-11 23:42:03,939 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8562091503267973 [2022-12-11 23:42:03,940 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 17 predicate places. [2022-12-11 23:42:03,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 120 transitions, 781 flow [2022-12-11 23:42:03,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 107 transitions, 651 flow [2022-12-11 23:42:03,943 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 107 transitions, 651 flow [2022-12-11 23:42:03,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:03,943 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:03,944 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:03,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:42:03,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:03,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:03,944 INFO L85 PathProgramCache]: Analyzing trace with hash 475446056, now seen corresponding path program 1 times [2022-12-11 23:42:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:03,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133218926] [2022-12-11 23:42:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:03,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:04,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:04,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133218926] [2022-12-11 23:42:04,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133218926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:04,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:04,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:04,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282985950] [2022-12-11 23:42:04,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:04,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:04,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:04,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:04,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:04,083 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:04,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 107 transitions, 651 flow. Second operand has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:04,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:04,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:04,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:04,193 INFO L130 PetriNetUnfolder]: 58/362 cut-off events. [2022-12-11 23:42:04,193 INFO L131 PetriNetUnfolder]: For 583/939 co-relation queries the response was YES. [2022-12-11 23:42:04,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 362 events. 58/362 cut-off events. For 583/939 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1892 event pairs, 0 based on Foata normal form. 10/366 useless extension candidates. Maximal degree in co-relation 920. Up to 67 conditions per place. [2022-12-11 23:42:04,194 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 15 selfloop transitions, 7 changer transitions 41/128 dead transitions. [2022-12-11 23:42:04,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 128 transitions, 945 flow [2022-12-11 23:42:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:42:04,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:42:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 707 transitions. [2022-12-11 23:42:04,196 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.831764705882353 [2022-12-11 23:42:04,198 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2022-12-11 23:42:04,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 128 transitions, 945 flow [2022-12-11 23:42:04,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 87 transitions, 489 flow [2022-12-11 23:42:04,199 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 489 flow [2022-12-11 23:42:04,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:04,199 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:04,199 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:04,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:42:04,200 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:04,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:04,201 INFO L85 PathProgramCache]: Analyzing trace with hash 168293834, now seen corresponding path program 1 times [2022-12-11 23:42:04,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:04,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634268750] [2022-12-11 23:42:04,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:04,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:04,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:04,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634268750] [2022-12-11 23:42:04,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634268750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:04,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:04,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:42:04,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135764178] [2022-12-11 23:42:04,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:04,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:42:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:42:04,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:42:04,318 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:04,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 489 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:04,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:04,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:04,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:04,429 INFO L130 PetriNetUnfolder]: 286/832 cut-off events. [2022-12-11 23:42:04,429 INFO L131 PetriNetUnfolder]: For 368/393 co-relation queries the response was YES. [2022-12-11 23:42:04,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1858 conditions, 832 events. 286/832 cut-off events. For 368/393 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5565 event pairs, 4 based on Foata normal form. 2/802 useless extension candidates. Maximal degree in co-relation 1796. Up to 211 conditions per place. [2022-12-11 23:42:04,434 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 27 selfloop transitions, 15 changer transitions 5/118 dead transitions. [2022-12-11 23:42:04,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 118 transitions, 658 flow [2022-12-11 23:42:04,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:42:04,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:42:04,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 727 transitions. [2022-12-11 23:42:04,435 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8552941176470589 [2022-12-11 23:42:04,436 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 23 predicate places. [2022-12-11 23:42:04,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 118 transitions, 658 flow [2022-12-11 23:42:04,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 113 transitions, 638 flow [2022-12-11 23:42:04,438 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 113 transitions, 638 flow [2022-12-11 23:42:04,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:04,439 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:04,439 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:04,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:42:04,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:04,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:04,439 INFO L85 PathProgramCache]: Analyzing trace with hash -908487017, now seen corresponding path program 1 times [2022-12-11 23:42:04,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:04,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570772588] [2022-12-11 23:42:04,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:04,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:04,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:04,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570772588] [2022-12-11 23:42:04,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570772588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:04,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:04,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:04,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359411628] [2022-12-11 23:42:04,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:04,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:04,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:04,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:04,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:04,548 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:04,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 113 transitions, 638 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:04,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:04,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:04,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:04,719 INFO L130 PetriNetUnfolder]: 235/765 cut-off events. [2022-12-11 23:42:04,720 INFO L131 PetriNetUnfolder]: For 361/582 co-relation queries the response was YES. [2022-12-11 23:42:04,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 765 events. 235/765 cut-off events. For 361/582 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5424 event pairs, 0 based on Foata normal form. 52/792 useless extension candidates. Maximal degree in co-relation 1984. Up to 220 conditions per place. [2022-12-11 23:42:04,724 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 28 selfloop transitions, 36 changer transitions 20/155 dead transitions. [2022-12-11 23:42:04,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 155 transitions, 974 flow [2022-12-11 23:42:04,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:04,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 942 transitions. [2022-12-11 23:42:04,726 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8524886877828054 [2022-12-11 23:42:04,727 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 35 predicate places. [2022-12-11 23:42:04,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 155 transitions, 974 flow [2022-12-11 23:42:04,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 135 transitions, 854 flow [2022-12-11 23:42:04,729 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 135 transitions, 854 flow [2022-12-11 23:42:04,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:04,729 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:04,730 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:04,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:42:04,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:04,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:04,730 INFO L85 PathProgramCache]: Analyzing trace with hash -313946970, now seen corresponding path program 1 times [2022-12-11 23:42:04,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:04,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470379207] [2022-12-11 23:42:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:04,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:04,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:04,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:04,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470379207] [2022-12-11 23:42:04,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470379207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:04,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:04,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:04,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176010072] [2022-12-11 23:42:04,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:04,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:04,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:04,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:04,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:04,884 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:04,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 135 transitions, 854 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:04,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:04,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:04,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:05,063 INFO L130 PetriNetUnfolder]: 161/653 cut-off events. [2022-12-11 23:42:05,063 INFO L131 PetriNetUnfolder]: For 441/737 co-relation queries the response was YES. [2022-12-11 23:42:05,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2059 conditions, 653 events. 161/653 cut-off events. For 441/737 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4950 event pairs, 0 based on Foata normal form. 54/693 useless extension candidates. Maximal degree in co-relation 1989. Up to 162 conditions per place. [2022-12-11 23:42:05,066 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 23 selfloop transitions, 40 changer transitions 25/150 dead transitions. [2022-12-11 23:42:05,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 150 transitions, 1086 flow [2022-12-11 23:42:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:42:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:42:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1144 transitions. [2022-12-11 23:42:05,068 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8411764705882353 [2022-12-11 23:42:05,070 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 50 predicate places. [2022-12-11 23:42:05,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 150 transitions, 1086 flow [2022-12-11 23:42:05,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 125 transitions, 856 flow [2022-12-11 23:42:05,071 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 125 transitions, 856 flow [2022-12-11 23:42:05,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:05,072 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:05,072 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:05,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 23:42:05,073 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:05,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:05,073 INFO L85 PathProgramCache]: Analyzing trace with hash -329546195, now seen corresponding path program 1 times [2022-12-11 23:42:05,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:05,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021448477] [2022-12-11 23:42:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:05,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:05,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021448477] [2022-12-11 23:42:05,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021448477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:05,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:05,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:05,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144909364] [2022-12-11 23:42:05,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:05,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:05,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:05,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:05,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:05,209 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:42:05,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 856 flow. Second operand has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:05,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:05,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:42:05,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:05,304 INFO L130 PetriNetUnfolder]: 148/655 cut-off events. [2022-12-11 23:42:05,305 INFO L131 PetriNetUnfolder]: For 452/554 co-relation queries the response was YES. [2022-12-11 23:42:05,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 655 events. 148/655 cut-off events. For 452/554 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5159 event pairs, 0 based on Foata normal form. 3/629 useless extension candidates. Maximal degree in co-relation 2021. Up to 158 conditions per place. [2022-12-11 23:42:05,308 INFO L137 encePairwiseOnDemand]: 74/85 looper letters, 14 selfloop transitions, 8 changer transitions 10/131 dead transitions. [2022-12-11 23:42:05,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 131 transitions, 984 flow [2022-12-11 23:42:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 23:42:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 23:42:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 598 transitions. [2022-12-11 23:42:05,309 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7816993464052288 [2022-12-11 23:42:05,309 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 55 predicate places. [2022-12-11 23:42:05,310 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 131 transitions, 984 flow [2022-12-11 23:42:05,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 121 transitions, 851 flow [2022-12-11 23:42:05,311 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 851 flow [2022-12-11 23:42:05,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:05,311 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:05,311 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:05,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 23:42:05,312 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:05,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2121011, now seen corresponding path program 2 times [2022-12-11 23:42:05,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:05,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060766268] [2022-12-11 23:42:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:05,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:05,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:05,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060766268] [2022-12-11 23:42:05,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060766268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:05,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:05,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:05,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400464007] [2022-12-11 23:42:05,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:05,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:05,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:05,420 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:42:05,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 851 flow. Second operand has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:05,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:05,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:42:05,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:05,489 INFO L130 PetriNetUnfolder]: 96/443 cut-off events. [2022-12-11 23:42:05,489 INFO L131 PetriNetUnfolder]: For 357/431 co-relation queries the response was YES. [2022-12-11 23:42:05,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 443 events. 96/443 cut-off events. For 357/431 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3029 event pairs, 0 based on Foata normal form. 1/424 useless extension candidates. Maximal degree in co-relation 1342. Up to 104 conditions per place. [2022-12-11 23:42:05,491 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2022-12-11 23:42:05,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 119 transitions, 877 flow [2022-12-11 23:42:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 23:42:05,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 23:42:05,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 524 transitions. [2022-12-11 23:42:05,492 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7705882352941177 [2022-12-11 23:42:05,493 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 55 predicate places. [2022-12-11 23:42:05,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 119 transitions, 877 flow [2022-12-11 23:42:05,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:05,493 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:05,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:42:05,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 23:42:05,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 23:42:05,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 23:42:05,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 23:42:05,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 23:42:05,496 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:05,498 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:42:05,498 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:42:05,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:42:05 BasicIcfg [2022-12-11 23:42:05,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:42:05,502 INFO L158 Benchmark]: Toolchain (without parser) took 4495.05ms. Allocated memory was 219.2MB in the beginning and 311.4MB in the end (delta: 92.3MB). Free memory was 174.1MB in the beginning and 154.9MB in the end (delta: 19.2MB). Peak memory consumption was 113.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:05,502 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory was 195.9MB in the beginning and 195.8MB in the end (delta: 141.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:42:05,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.61ms. Allocated memory is still 219.2MB. Free memory was 173.6MB in the beginning and 150.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:05,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.25ms. Allocated memory is still 219.2MB. Free memory was 150.5MB in the beginning and 148.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:05,502 INFO L158 Benchmark]: Boogie Preprocessor took 26.49ms. Allocated memory is still 219.2MB. Free memory was 148.5MB in the beginning and 146.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 23:42:05,502 INFO L158 Benchmark]: RCFGBuilder took 274.08ms. Allocated memory is still 219.2MB. Free memory was 146.9MB in the beginning and 132.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-11 23:42:05,503 INFO L158 Benchmark]: TraceAbstraction took 3808.15ms. Allocated memory was 219.2MB in the beginning and 311.4MB in the end (delta: 92.3MB). Free memory was 131.7MB in the beginning and 154.9MB in the end (delta: -23.2MB). Peak memory consumption was 70.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:05,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory was 195.9MB in the beginning and 195.8MB in the end (delta: 141.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 327.61ms. Allocated memory is still 219.2MB. Free memory was 173.6MB in the beginning and 150.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.25ms. Allocated memory is still 219.2MB. Free memory was 150.5MB in the beginning and 148.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.49ms. Allocated memory is still 219.2MB. Free memory was 148.5MB in the beginning and 146.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 274.08ms. Allocated memory is still 219.2MB. Free memory was 146.9MB in the beginning and 132.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3808.15ms. Allocated memory was 219.2MB in the beginning and 311.4MB in the end (delta: 92.3MB). Free memory was 131.7MB in the beginning and 154.9MB in the end (delta: -23.2MB). Peak memory consumption was 70.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 445 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 445 mSDsluCounter, 512 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 600 IncrementalHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 119 mSDtfsCounter, 600 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=856occurred in iteration=8, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 2672 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 569 NumberOfCodeBlocks, 569 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 559 ConstructedInterpolants, 0 QuantifiedInterpolants, 2561 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 23:42:05,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...